GAIL (INDIA) LIMITED SECTION IV FOR DETAILED ROUTE...

BIDDING DOCUMENT NO.GAIL/ND/C&P/PROJ/JLPL/SURVEY/12-101/8000005096 Page 1 of 58

GAIL (INDIA) LIMITED 16, GAIL BHAWAN, Bhikaji Cama Place,

R. K. Puram, NEW DELHI (INDIA)

SECTION – IV

(Scope of Work)

FOR

DETAILED ROUTE SURVEY FOR JAMNAGAR-LONI LPG PIPELINE AUGMENTATION AND SPURLINE TO

TIKRIKALAN PROJECT

Free tenders for Survey Work by Gail (India) Limited-8460034539

http://tenders.indiamart.com/


(SCOPE OF WORK)

CONTENTS Sl. No DESCRIPTION 1.0 PROJECT DESCRIPTION 2.0 OBJECTIVES 3.0 SCOPE OF WORK 4.0 CHECK - LIST 5.0 SCOPE OF SUPPLY

6.0 CONTRACTOR’S RESPONSIBILITY 7.0 GAIL’S OBLIGATION 8.0 DOCUMENTS AND DATA SUBMISSION 9.0 SPECIFICATIONS IN TENDER




1.0 PROJECT DESCRIPTION GAIL (India) Limited is planning to carryout capacity augmentation for existing

Jamnagar- Loni LPG Pipeline (JLPL) network from 2.50 MMTPA to 4.50 MMTPA to meet the future LPG demand. Jamnagar Lon LPG Pipeline (1255km., 16”/14”12”) collects LPG from Essar & Reliance Refineries at Jamnagar and after passing through Abu Road, Ajmer & Jaipur in the state of Rajasthan terminates at Loni (Uttar Pradesh/Delhi Boarder). The major consumers en-route are mainly oil marketing companies (OMC) namely IOCL, BPCL & HPCL. The indicative schematic diagram of the existing Jamnagar – Loni pipeline is given at page – 4.

The estimated length of pipeline route survey has been considered as 1250 kms. and the

survey is to be carried out in 03 (three) parts as under: 1. Part I, for state of Gujarat (up to state border) - 475 km. 2. Part II, for state of Rajasthan (up to Mansarampura, Jaipur) – 425 km. 3. Part III, for the states of Rajasthan & Haryana (Mansarampura in Rajasthan to

Termination point in Haryana/Delhi) – 350 km. The proposed pipeline is to be laid in existing RoU of JLPL with new connectivity to Tikrikalan in new RoU. As the new pipeline has been proposed to be laid in the existing RoU at distance of 5.0 mtr. (approx.), the reconnaissance survey may not be required. However, the reconnaissance survey shall be carried out for proposed new spur line to Tikrikalan and for de-tour survey wherever required as per the site conditions.







2.0 OBJECTIVES The main objectives of the detailed pipeline route survey are as follows:

i. Obtaining topographical details along the pipeline route after physical verification of most optimized route and collecting information about the existing facilities, development plans, restricted areas etc. located along and in the vicinity of the proposed pipeline route.

ii. Obtaining details regarding development needs of community in the

surrounding area of proposed route that can be considered under GAIL’s Corporate Social Responsibility (CSR) scheme.

iii. Obtaining details of socio political condition in the surrounding area of

proposed route. iv. Determination of population density index along the proposed pipeline routes.

v. Obtaining soil stratification, soil resistivity data along the route.

vi. Collection of revenue maps, latest ownership of land with Part / Hissa details,

collection of FMB(Field Measurement Book) preparation of cadastral maps along the pipeline route including preparation of 3(1) proposal for submission to Ministry of Petroleum and Natural Gas in hard copies as well as in soft copies (In English & Hindi languages both).

vii. Identification of Govt. land along pipeline route (if any).

viii. Obtaining details of crossings en-route pipeline with name and complete

address of concerned state / central govt. authorities under whom the crossing locations falls.

ix. Obtaining details of Forest land including road side forests en-route of Pipeline

and its Classification (Social/Protected/Reserved), with name and complete address of concerned state / central govt. authorities under whom the forest locations falls.

x. Development of Geographical & Land information system (GIS & LIS) for the

pipeline route as per the requirements of the tender. 3.0 SCOPE OF WORK

Scope of work for detailed pipeline route survey for each pipeline shall include, but not limited to the following (the work described herein shall be carried out for the each pipeline as per applicable technical specifications of the tender documents):

3.1 Table top study / Reconnaissance Survey : Initially Contractor has to find out

critical locations in existing RoU wherever de-tour is required. Carrying out table top based on the Satellite Images of the area / latest Survey of India Maps / Development plan as received from concerned Authority, reconnaissance survey of routes (min. 02) wherever possible and critical evaluation of route considering survey




efficiency. Techno-commercial feasible route shall be properly mentioned in the reconnaissance survey report for approval of GAIL. The Contractor has to submit at least (02) distinct routes for the pipeline. However, if there is no possibility of alternate reconnaissance survey route, unwanted efforts to generate optional routes may be avoided.

3.2 Identifying critical areas: Identifying and establishing the extent of

environmentally / ecologically sensitive areas such forest, Wild Life Sanctuaries, National Park, CRZ (Coastal Regulation Zone) Area including classification of area such as CRZ-I, II, III, IV or V, Area under acquisition for mining activity, plantations etc. including obtaining information regarding type of forest (reserved/protected/social), type of plantation etc. in consultation with the concerned authorities. However, all efforts should be made to avoid these areas to the maximum extent possible.

3.2.1 Collection of data by way of survey for CRZ area and preparation of standard map in

desired pattern and details thereof in requisite format so as to obtain permission from concerned authorities to lay the pipeline in CRZ area. Drawings & details to be submitted in 08 sets

3.2.2 Same as above but for Wild Life Sanctuary. Drawings & details for this also to be

submitted in 08 sets 3.3 Collection of development plans along the proposed pipeline route from various

agencies having jurisdiction thereof. 3.4 Establishing the areas where:

a. Difficulty is expected in mobilization of pipeline construction equipment. b. RoU is likely to be restricted due to built up areas/habitation. c. Areas earmarked for future developments.

3.5 Obtaining permissions for carrying out pipeline route survey work from the concerned authorities.

3.6 Detailed Engineering Survey:

A) Contractor has to deploy minimum 04 nos. of survey teams for each part. In case progress of work is not as per schedule, no of teams may have to be increased by the contractor as directed by EIC.

B) Carrying out detailed route survey work for the entire route of the proposed pipelines as established by Contractor and approved by Company. Detailed route survey works shall be carried out in accordance with technical specifications including detailed study of crossings like Railways, Roads, Rivers, Canals, Forest Areas and Hilly Terrains etc. Survey shall also cover an area of 30 Mtrs. on either side of centreline of surveyed pipeline. The survey shall also include locating all existing underground pipeline(s), utilities such as cables, water line sewer line etc. using cable / pipeline locators etc. and plotting the same on alignment sheets etc.

3.7 CSR Details & Socio political condition: Obtaining details regarding development

needs of community in the surrounding area of proposed route that can be considered under GAIL’s Corporate Social Responsibility (CSR) scheme. Obtaining details of socio political condition in the surrounding area of proposed route.




3.8 Carrying out soil investigation / soil stratification along the proposed pipeline route including road & water crossing as per specification enclosed with Tender Document.

3.9 Collection of disturbed soil samples from bore holes for visual classification of soil as

per specifications in the tender and submission of reports. 3.10 Collection of population density data along the entire route of the proposed pipelines

route as per tender specification. 3.11 Carrying out corrosion survey including measurement of soil resistivity, chemical

analysis of soil / water as per specification in the tender for Corrosion Survey. The test to be carried out through govt. authorised labs and collection of related data along the pipelines route and submission of lab reports.

3.12 Cadastral Survey: Carrying out cadastral survey work as per specification along the

proposed pipeline route.

A) Since the survey is to be carried out in existing RoU, Contractor has to mobilise Cadastral survey team from the beginning itself so that details related with RoU are obtained well in time. B) Existing RoU is of 20 Mtrs. Width, hence the Cadastral survey shall be carried out covering a corridor of 20 Mts., unless otherwise specific instruction is given regarding change in ROU width. In restricted area, the width of ROU will be decided in consultation with the respective Competent Authority and as per Municipal / Local Government Laws. Accordingly, land schedule to be submitted for preparation of RoU notifications along the entire length. C) All the latest revenue and other related records / maps duly authenticated by concerned revenue authorities of respective Village/Tehsil/District, Field Measurement Book (FMB) as well as forms required for carrying out this survey shall be arranged by the Contractor at his own cost and responsibility. The Contractor shall digitize all such maps, data/records and mark the pipeline route on maps with the following details.

- Land schedules giving the survey numbers, area and details of owners as per the

latest official revenue records. The Detail shall be provided as per following format in Hindi and English:

Sr. No. District Tehsil Village Survey

No. Area Ownership

Detail Land Use Detail

- Major features/land marks including:

All built-up areas such as Religious place school, hospital etc. District/village and Panchayat roads. Water bodies Forest land Overhead and underground utility crossings Marshy land/ waste Land Any other information not covered above




The information / details as above are required to be provided in all respect for ROU acquisition purpose.

Entire database shall be developed into a unified GIS (Geo-Spatial Information System)

and LIS (Land Information System) compatible format. Note: 1) Contractor shall be fully responsible for collection of correct and Up-to-

date records/ data. 2) Any defects noticed in above information shall be rectified at the risk and

cost of the Contractor. 3.13 Penalty against Detailed Engineering Survey

In addition to applicable PRS, penalty shall be imposed against detailed engineering survey (including soil resistivity, corrosion & PDI survey), if the contractor fails to complete detailed engineering survey and submit the report within stipulated time schedule (refer time schedule at section-VII).

The penalty shall be imposed @ Rs. 25000/- per week delay or part thereof.

3.14 Submission of Missing, incomplete & wrong data /details It is overall responsibility of the contractor to furnish accurate and complete data /

details pertaining to survey activities. However, if the data / details provided by the contractor is found to be in-accurate, incomplete, missing etc. then contractor have to make good the same by taking appropriate action immediately at no extra cost to GAIL.

3.15 Supply and installation of the survey markers as per requirements of the specifications

and instructions of the GAIL 3.16 Tie-in of the starting and termination point of the proposed pipeline survey to the grid-

control system being used for end facilities. A global geo-referencing system to be used for complete integration of the survey database.

3.17 Contractor shall also identity the earthquake prone area along the pipeline route and

shall define the seismic zone and its category with proper marking on the route map. A separate list of elevation difference to be submitted, wherever major differences have occurred.

3.18 GIS & LIS: Digitization of Survey Documents and development of Geo-Spatial and

Land Information System (GIS & LIS) as per Company requirements enclosed with the tender. Arc GIS software (9.3version) is available with the company for uploading of GIS data and hence entire survey data/drawings to be generated by survey agency, should be on ARC GIS (ESRI) platform i.e. GIS & LIS compatibility on updated maps in a seamless manner integrating with the starting point on one end and terminating point on the other end.

3.19 Preparation of survey reports/drawings/documents and submission of the same to

Company for review & approval. 3.20 Locating all buried/ above ground pipelines, cables and other utilities within a distance

of 30 meters on either side of the centre line of the proposed ROU with the help of




pipelines/ cables locator or other suitable instruments (Wherever necessary as directed by EIC). All detailed interference survey work to be carried out as per technical specification.

3.21 The scope of work shall also include any other item/activity required to complete the

work in all respects as per specifications, drawings, implementation schedule, and instructions of GAIL whether specifically mentioned herein or not, but is required to fulfill the intended purpose of this tender document.

4.0 CHECK-LIST Check list points as detailed below to be covered in Reconnaissance and Detailed route survey reports:

CHECK LIST

Table Top Study & Reconnaissance Surveys S. N. Activities Status/Remarks 1 Fixing of start and end locations 2 Carry out a Table Top study of relevant SOI maps

and Satellite images

3 Carry out field verification for route identified based on table top study.

4 Carry out critical evaluation of all the alternate routes, considering the following checklist.

S. N.

Description Route 1 Route - 2

1 Total distance of the pipeline route from start point to end point.

…KM …KM

2 Consideration for selecting a route in the existing corridors. Record, if any existing corridors are possible.

3 Check for the shortest route w.r.t. crow fly distance as far as possible.

4 Check for Wild Life Sanctuary / National Park / CRZ- Avoid the same as far as possible.

5 Check for Protected forest / Reserved Forest- Avoid the same as far as possible.

6 Check for Social forest- Avoid them as far as possible.

7 Avoiding areas reserved for planned development including strategic/defense establishment.

8 Check & Minimize major crossing of rivers, roads, railways, streams, canals & power transmission line.




9

Check for approachability for transportation of material and equipment for construction & future maintenance of the pipeline. Record, if any problems envisaged.

10 Check for habituated areas, public utilities etc.- avoid the same

11 Check for Feasibility of pipe line route considering limitations of topography & terrain. Record, if any problems envisaged.

12 Check for tidal wave region, if exists avoid & preferably route the pipeline on safer side of highway/railway.

13 Check for unstable ground features i.e. scouring etc., any sign exists then locate the pipeline at safer side.

14 Any other problems envisaged with regard to construction of P/L like Terrain / Topography of the route.

15 Any other problems envisaged with regards to obtaining of RoU.

Final Recommendation: Techno-commercial feasible route selected for detailed route survey, based on merits and demerits as per above criterion.

CHECK LIST Detailed Route Survey

IMPORTANT: In addition to checklist points for Reconnaissance Survey, following points to be ensured during detailed route survey. In case Reconnaissance Survey has not been done then check list points for Reconnaissance Survey has to be ensured before taking up detailed route survey.

S. N. Activities Status/Remarks 1 Re-confirmation and Fixing of start and end

locations of survey.

2 Transfer of nearby benchmarks. Fixing of Co-ordinates of start / end locations.

3 Check for calibration/accuracy / performance of Total station & other instruments used for Survey. Indicate details of instruments used

4 Check for the Surveyor experience and their operating skills of survey instruments.

5 Certification for route not passing through CRZ / National park / Sanctuary / Coral reef / Ecologically sensitive areas including LNG terminals

Certificate to be Provided in the survey report itself

6 Certification for route not passing through Critically Polluted areas as per MoEF Notification dated 15-03-2012




7 Check for any other existing underground cables / pipeline, using cable/pipeline locators and determination of cover (depth).

8 Check to avoid major obstacles / dense plantation / permanent structures / very hilly terrain etc.

�

9 Major Highlights of the Pipeline Route- a Major Highlights of the Pipeline Route

b Co-ordinates of starting point

c Co-ordinates of Terminating point

d Total Chainage e Total IP points f Total TP Points g Major crossings

Rlys/NH/SH/River/Canal/Forest 5.0 SCOPE OF SUPPLY 5.1 GAIL shall not supply any materials, manpower or equipment for the tendered work

and this shall be the responsibility of the Contractor. 6.0 CONTRACTOR’S RESPONSIBILITIES 6.1 Contractor shall carry out Reconnaissance Survey and finalize the route for detail

survey in consultation with GAIL. Deviation from route, if considered essential by contractor, shall be brought to the notice of the GAIL.

6.2 Contractor to arrange all manpower and equipments etc. required to complete the work as per the tender and as directed EIC.

6.3 Contractor to arrange permissions from concerned authorities and other support facilities etc. to complete the work.

6.4 Any dispute arising out of any damages caused by Contractor or Contractor’s workmen during the execution of the work has to be settled by the contractor.

6.5 Ground profile shall be prepared based on MSL. 6.6 Collection of all information and proposed development plans in near by vicinity of

proposed pipeline 6.7 Arranging of SOI maps in scale of 1:50,000 / 1:25000 as per the requirement. 6.8 Contractor shall carryout all works in strict compliance with applicable specifications

as per the tender and as directed by EIC. 6.9 All maps procured by the Contractor under this contract shall be property of the GAIL

and shall be handed over to GAIL after completion of work. 6.10 Procurement of all required Survey of India maps / Satellite imageries / any other map

necessary to undertake reconnaissance survey and detail route survey of proposed pipeline shall be in contractor’s Scope of Work, without any additional cost to GAIL. However, assistance in procurement of maps, if required, shall be provided by GAIL.

7.0 GAIL’S OBLIGATION 7.1 GAIL will provide Route Map of existing/surveyed pipeline network (if any) from

which suitable TAP-OFF location is to be identified or will show the specific TAP-OFF Location and Terminating Location.




7.2 Standard format of drawings like plans & profile, cross section, data sheet for soil investigation & population density etc if not included with Tender document, will be provided.

8.0 DOCUMENTS / DATA SUBMISSION 8.1 Contractor has to submit survey data, drawings etc. to GAIL for review / approval. 8.2 Two sets of hard copy of sample drawings / data / documents covering at least 10km.

Stretch, shall be submitted by the Contractor for GAIL's review in the form of draft report for entire activities. Suggestions / Comments of GAIL (if any) shall be incorporated by the Contractor. This report can be demanded in parts and in different phases as per discretion of GAIL.

8.3 All drawings, reports, formats etc. forming the part of submission to GAIL shall be

prepared on approved computer package. All drawings, including, but not limited to alignment sheets, crossing drawings, soil profiles etc. shall be prepared using latest version of AutoCAD & GIS based suitable package (Arc GIS 9.1). All reports, formats, write-ups, charts shall be prepared on computer using software package compatible with MS Office latest version.

8.4 The data and drawings submitted shall be in approved GIS package. Sr.No. DRAWINGS/DOCUMENTS

(Colour print only) NO. OF COPIES

REMARK

A Alignment Sheets 05 B Crossing Drawings 05 Drawing should contain

Key Map with Details for Locating the Crossings at Site

C Route Map C1 In the Scale of 1:50,000 or 1:25,000 06 C2 Overall Route Map In the Scale of

1:500,000 or 1:10,00,000 06

D Cadastral Drawings Village wise Files should be submitted with One Copy of each of the following.

D1 Revenue Map 03 (01 original and 02 copies)

As received from Revenue authority with RoU marked on it

D2 Digitised Village Map 03 (In colour) Different Colour should be used for marking Centreline and ROU Width.

D3 Latest Ownership details with Part / Hissa Details,

03

E Soil Resistivity / Corrosion Survey Report

05

F Reconnaissance Survey Report 05 G Detailed Engineering Survey Report 05 H Cadastral Survey Report 03 G GIS/LIS Package 02 in CD /

DVD




The soft copies of entire Drawings and Reports mentioned at (A) to (F) above shall be submitted in one set of CD / DVD and one in Pen drive. 9.0 SPECIFICATIONS IN TENDER:

Following specifications are enclosed with Section –VI (Technical Specification) i) Specification for Detailed Pipeline Route Survey ii) Specification for Corrosion Survey iii) Specification for Cadastral Survey iv) Specification for Development of GIS & LIS v) Soil Investigation Survey vi) Population Density Survey vii) Pipeline route survey data sheet. viii) Pipeline density data along pipeline route.




SECTION – V

SPECIAL CONDITIONS OF CONTRACT




SPECIAL CONDITIONS OF CONTRACT (SCC)

CONTENTS SL.NO. DESCRIPTION 1.0 GENERAL

2.0 TIME OF COMPLETION

3.0 DRAWINGS AND DOCUMENTS

4.0 TERMS OF PAYMENT

5.0 ABNORMALLY HIGH RATED ITEMS

6.0 INSURANCE

7.0 TESTS AND INSPECTION OF WORKS

8.0 QUALITY ASSURANCE SYSTEMS

9.0 SURVEY EQUIPMENT & SITE ORGANISATION

10.0 COMPLETION DOCUMENTS

11.0 PRICE REDUCTION SCHEDULE

12.0 DEFECT LIABILITY PERIOD

13.0 HEALTH, SAFETY AND ENVIRONMENT (HSE) 14.0 STATUTORY APPROVALS

15.0 EXTENSION OF CONTRACT

16.0 SECURITY DEPOSIT

17.0 STATUTORY VARIATION IN TAXES & DUTIES




1.0 GENERAL. 1.0.1 Special Condition of Contract shall be read in Conjunction with the General Conditions

of Contract, specification of work, Drawing and any other documents forming part of this contract wherever the context so requires.

1.0.2 Where any portion of the General Condition of Contract is repugnant, to or at variance

with any provisions of the Special Conditions of Contract, unless a different intention appears, the provisions of the Special Conditions of Contract shall be deemed to over-ride the provisions of the General Condition of Contract and shall to the extent of such repugnancy, or variations, prevail.

1.0.3 Wherever it is mentioned in the specifications that the Contractor shall perform certain

work or provide certain facilities, it is understood that the contractor shall do so at his cost and the value of contract shall be deemed to have included cost of such performance and provisions, so mentioned.

1.0.4 In case of an irreconcilable conflict between Indian and other applicable standards,

General Conditions of Contract, Special Conditions of Contract, Specifications, Drawings or Schedule of Rates, the following shall prevail to the extent of such irreconcilable conflict in order of precedence.

i) Letter of Acceptance along with Statement of Agreed Variations. ii) Telex/Telegram of Acceptance. iii) Schedule of Rates as enclosures of Letter of Acceptance. iv) Job/ Particular Specifications v) Drawings vi) Technical/Material Specifications vii) Special Conditions of Contract viii) General Conditions of Contract ix) Indian Standards x) Other Applicable Standards.

1.1.6 It will be Contractor's responsibility to bring to the notice of Engineer-in-charge any

irreconcilable conflict in the contract documents before starting the work(s) or making the supply with reference which the conflict exists.

2.0 TIME OF COMPLETION 2.1 The work shall be executed strictly as per Time Schedule mentioned in Section-VII of

bidding document. The period of completion given includes the time required for mobilization if any in all respects to the entire satisfaction of the Engineer-in-charge.

2.2 A joint programme of execution of work will be prepared by the Contractor in

consultation with Engineer-in-charge. 2.3 Contractor shall submit the Monthly / weekly schedule to EIC in accordance to over all

completion period. The Contractor shall scrupulously adhere to the agreed schedule by deploying adequate personnel so as to complete the work in time. In all matters concerning the extent of targets set out and Monthly/weekly achievements, the decision of the Engineer-in-charge shall be final and binding on the contractor.




2.4 Contractor shall give Weekly Progress Report of work done in the Performa prescribed by EIC.

3.0 DRAWINGS AND DOCUMENTS The work shall be carried out as per drawings / specifications issued / approved by the

Engineer-in-charge during the course of execution of work. Detailed drawings (wherever required) on the basis of which actual execution of work is to proceed will be prepared by the contractor and shall submit these detailed drawings along with originals for GAIL approval before start of work.

4.0 TERMS OF PAYMENT

- Please refer Section-VIII - "Schedule of Rates" - Basis and terms of payment shall be as set out in Appendix-I to SCC - The Contractor shall raise the Cenvatable Invoice(s) to the Owner for payment

of Bills and billing cycle shall be of 30 days. - Payment shall be made based on work done & certified by Engineer-in-charge

and completion of all contractual obligations. - Wherever applicable, payment shall be made through electronic clearing.

Tenderer shall furnish his E-Bank A/C No. including Bank Code and Name & Address of the Banker for making payment of running bills through e-banking.

5.0 ABNORMALLY HIGH RATED ITEMS (AHR ITEMS)

At Clause no. 20.0 of GCC, following is added:

"In item rate contract where the quoted rates for the items exceed 50% of the GAIL's estimated rates, such items will be considered as Abnormally High Rated Items (AHR) and payment of AHR items beyond the SOR quantities shall be made at the least of the following rates. Service tax as applicable shall be paid extra.

i) Rates as per SOR, quoted by the Contractor. ii) Rates of the item, which shall be derived as follows: a) Based on rates of machine and labour as available from the contract (which

includes contractor's supervision, profit, overheads and other expenses). b) In case rates are not available in the contract, rates will be calculated based on

prevailing market rates of machine, material and labour plus 15% to cover contractor's supervision, profit, overhead and other expenses.

6.0 INSURANCE

At Clause no. 101 of GCC, following is added. Contractor at his own expense, shall arrange, secure and maintain WC insurances from

reputable insurance companies to the satisfaction of the EMPLOYER, before start of work.




7.0 TESTS AND INSPECTION OF WORKS 7.1 The Contractor shall carry out the various tests as enumerated in the tender document

and as per direction of Engineer-in-charge either on field or outside/ laboratories concerning the execution of work and supply of the material by contractor. All the expenses shall be borne by the contractor and shall be considered as included in the items given in SOR. The inspection shall be done by the following agencies:

a) Representative deputed by Engineer-in-charge. b) Representative deputed by Statutory Authority.

Contractor shall give prior notice sufficiently ahead of time to the Engineer-in-charge

and also to the authorities to conduct inspection/to witness such tests. 7.2 The work is subject to inspection at all times by the Engineer-in-charge. The Contractor

shall carry out all instructions given during inspection and shall ensure that the work is being carried out according to the technical specifications of this tender, the technical documents and the relevant codes of practice furnished to him during the performance of the work.

7.3 All results of inspection and tests will be recorded in the Inspection reports, Performa

of which will be approved by the Engineer-in-charge. These reports shall form part of the completion documents.

7.4 Inspection and acceptance of the work by the Engineer-in-charge shall not relieve the

contractor from any of his responsibilities under this contract. 7.5 Statutory fees paid to Statutory Authorities and others for repeat tests and Inspection

due to failures, repairs etc. for the reasons attributable to the Contractor shall be borne by the Contractor.

8.0 QUALITY ASSURANCE SYSTEM 8.1 Tenderer shall include in his offer the Quality Assurance Programme containing the

overall quality management and procedures which is required to be adhered to during the execution of contract. After the award of the contract, detailed quality assurance programme to be followed for the execution of contract under various divisions of works will be mutually discussed and agreed to.

8.2 The GAIL or their representative shall reserve the right to inspect/witness, review any

or all stages or work at shop/site as deemed necessary for quality assurance. 8.4 In case contractor fails to follow the instructions of Engineer-in-charge with respect to

above clauses, next payment due to him shall not be released unless until he complies with the instructions to the full satisfaction of Engineer-in-charge.

9.0 SURVEY EOUIPMENT AND SITE ORGANIZATION 9.1 Survey Equipment




The Contractor shall without prejudice to his overall responsibility to execute and complete the work as per specifications and time schedule, adequate equipments and tools and tackles and augment the same as decided by the Engineer-in-charge depending on the exigencies of the work so as to suit the survey schedule, without any additional cost to GAIL. The bidder shall submit a list of survey equipments which is proposed to deploy for the subject work along with deployment schedule. No Survey Equipment shall be supplied by the GAIL.

9.2 Site Organisation The tenderer shall submit the details of Organisation proposed by him at site of work

for the implementation of the works under the contract, together with bio data of the key personnel. The contractor shall however without prejudice to his overall responsibility to execute and complete the works as per specifications and time schedule progressively deploy adequate qualified and experienced personnel together with skilled/unskilled manpower and augment the same as decided by Engineer-in-charge depending on the exigencies of work to suit the survey schedule without any additional cost to GAIL .

10.0 COMPLETION DOCUMENTS Contractor shall submit the documents as listed in Scope of Work and technical

specifications as a part of completion document. These documents will be in addition to these mentioned in General Conditions of Contract.

11.0 PRICE REDUCTION SCHEDULE(PRS)

In line with the Clause No. 27.0 of GCC, PRS shall be applicable for Individual Parts (Part-I, II & III) separately.

12.0 DEFECT LIABILITY PERIOD The defect liability period shall be 24 months from the actual completion date of work.

If during this period any defect occur, the same shall be made good by the contractor at his own cost. Failure to comply with this requirement may result in the forfeiture of security deposit.

13.0 HEALTH, SAFETY AND ENVIRONMENT (HSE) The Contractor, during the entire duration of the contract, shall adhere to requirement

of Health, Safety and Environment (HSE). 14.0 STATUTORY APPROVALS The approval from any statutory authority (if, required) shall be the contractor's

responsibility unless otherwise specified in the tender document. The application on behalf of the GAIL for submission to relevant authorities along with copies of required certificates complete in all respects shall be prepared and submitted by the Contractor.

The inspection of the works by the authorities (if, required) shall be arranged by the

Contractor and necessary co-ordination and liaison work in this respect shall be the responsibility of the contractor. However statutory fees paid, if any, for all inspections




and approvals by such authorities shall be reimbursed at actual by the GAIL to the contractor on production of documentary evidence.

Any change/addition (if, required) to be made to meet the requirements of the statutory

authorities shall be carried out by the contractor free of charge. The inspection and acceptance of the work by statutory authorities shall however, not absolve the contractor from any of his responsibilities under this contract.

15.0 EXTENSION OF CONTRACT Not Applicable 16.0 CONTRACT-CUM-PERFORMANCE BANK GUARANTEE 16.1 Pursuant to Clause No. 24 of GCC-Works bidder will provide Performance Guarantee of appropriate value within 15 days of receipt of FOA from the Employer. The contract performance bank guarantee shall be valid 03 (Three) months beyond the expiry of defect liability period. The Performance Guarantee shall be in form of either Demand Draft or Banker’s Cheque or irrevocable Bank Guarantee and shall be in the currency of Contract (issued by any Indian Scheduled bank or a branch of an International Bank situated in India and registered with Reserve Bank of India as Scheduled Foreign Bank in case of Indian bidders as well as Foreign Bidders). GAIL shall not be liable to pay any bank charges, commission or interest on the same. However, in case of Bank Guarantee from banks other than the Nationalized Indian bank, the

bank must be a commercial bank having net worth in excess of Rs.100 Crores and a declaration to this effect should be made by such commercial bank either in the bank guarantee itself or separately on its letterhead

Performance Guarantee for 10% of total order/Contract value shall be excluding taxes &

duties.

16.2 Failure of the successful bidder to comply with the requirement of this clause shall constitute a

breach of contract, cause for annulment of the award, forfeiture of the bid security and any such remedy the Employer may take under the Contract pursuant to Clause 28.1.3 of GCC-Goods.

17.0 STATUTORY VARIATION IN TAXES & DUTIES:

Clause100.1ofGCC‐Worksismodifiedtothefollowingextent:

17.1 Prices quoted by the bidder shall remain firm, fixed & valid until completion of theContractandwillnotbesubject tovariation,exceptstatutoryvariation inServiceTax.However, any increase in the rate of Service Tax beyond the contractual completionperiodshallbeonContractor’saccountwhereasanydecreaseintherateofServiceTaxshallbepassedontotheEmployer.

17.2 Thebase‐dateforthepurposeofapplyingstatutoryvariationshallthebidduedate.17.3 RegardingServiceTax, Contractor shall submitCenvatable invoicesgivingbreak‐upof

tax‐amount,sothattheEmployercanavailtheCenvat‐benefitasperapplicablerules.




APPENDIX –I TO SCC TERMS OF PAYMENTS

1.0 Reconnaissance Survey

- 50% on completion of procurement of map, table top study and field verification of route.

- 40% on approval by GAIL. - 10% on completion of all works of that item in all respect and its

acceptance by GAIL.

2.0 Detailed Route Survey

- 70% on completion of job on pro-rata basis (including submission of draft report).

- 20% after submission of Final Drawings/Reports. - 10% on completion of all works of that item in all respect and its

acceptance by GAIL.

3.0 For Soil Investigation

- 90% on completion of job on pro-rata basis and submission of final report.

- 10% on completion of all works of that item in all respect and its acceptance by GAIL.

4.0 For Corrosion Survey

- 90% on completion of job on pro-rata basis and submission of final report.


5.0 For Cadastral Survey

- 60% on completion of job on pro-rata basis on procurement and submission of village maps including digitization.

- 30% on submission of Final Drawings, Revenue Records and Report including submission of 3(i) proposals for RoU acquisition.


6.0 For Development of GIS/LIS Module

- 90% on digitization and development of GIS/LIS for surveyed pipeline data and uploading the same in GAIL’s GIS Software.

- 10% on completion of all works of that item in all respect and its

acceptance by GAIL.




(Section -VI)

Technical Specifications FOR PART-A




STANDARD SPECIFICATION FOR DETAILED PIPELINE ROUTE SURVEY

(ONSHORE)

CONTENTS

1.0 SCOPE 2.0 REQUIREMENTS 3.0 PRELIMINARY AND LOCATION SURVEYS 4.0 BENCH MARKS 5.0 CROSSINGS 6.0 ACCURACY IN MEASUREMENT 7.0 CHAINAGE 8.0 MEASUREMENT OF HORIZONTAL ANGLES 9.0 PROFILES 10.0 BUILT-UP AREAS 11.0 SURVEY NOTES, OBSERVATIONS & COMPUTATIONS 12.0 MAPS AND DRAWINGS. 13.0 PRESENTATION OF FIELD SURVEY DATA 14.0 DOCUMENTS & DATA SUBMISSION




1.0 SCOPE This specification covers the minimum requirements of topographical survey along

the pipeline route including locating the centre-line of pipeline alignment on the ground, constructing survey monuments, field measurements for planimetry and profile and preparation of drawings and documents.

This specification also covers the minimum requirements for soil investigation for the

purpose of visual engineering classification of soil along the pipeline route. 2.0 REQUIREMENTS 2.1 All survey works shall be performed by or under the supervision of a qualified land

surveyor. 2.2 All measurements shall be in metric units. 2.3 The readings and noting shall be neat, legible and scorings and over-writing shall be

dully initialled by the Surveyor. 2.4 All survey shall be carried out using approved methodology and equipments e.g. GPS

, DGPS, Total Stations, Auto levels, High precision Theodolite , etc. 3.0 PRELIMINARY AND LOCATION SURVEY 3.1 Reconnaissance surveys 3.1.1 GAIL will provide only start and end location of survey and successful bidder will

procure required SOI map, satellite imageries and other document at his own cost. Contractor has to carry out table top study and subsequently field verification for route identified based on table top study.

3.1.2 Contractor has to make critical evaluation of alternate routes and will recommend for techno-commercial feasible route based on merits and demerits to GAIL and shall obtain approval of best route before start of detailed engineering survey.

3.2 Alignment and location surveys: 3.2.1 A preliminary survey for locating the centre-line of pipeline alignment on the ground

shall be carried out and where it becomes apparent that a better route could be followed, the Surveyor shall consult the COMPANY/ENGINEER for authorization to make a change.

3.2.2 Turning Points (TPs) shall be located by Surveyor in consultation with

COMPANY/ENGINEER considering the following.

To avoid obstruction along the line, by ranging on ground and shifting the Turning Points if need be.

Check for terrain gradient by using hand clinometer

Ensure proper angle of crossing by keeping as nearly right angle (to

road/rail/streams, etc.) As possible. The right angle may be laid on ground by using a chain or string lengths in ratio of 3, 4 and 5.




To check from construction point of view and avoid objects like power, telephone

and telegraph poles, walls, tube wells or such other structures falling in the strip of land, 50m on either side of pipeline alignment.

3.3 Staking of pipeline route 3.3.1 The pipeline defining trench centre line shall be staked by placing suitably painted

marker stakes at Turning Points (TPs) and at Intermediate Points (IPs) between consecutive TPs. All turning Points (TPs) and intermediate points are referred as Intersection Points.

The pipeline centre line shall be staked on the ground as follows: First, the Turning Points (TPs) shall be staked on the ground. After locating and

marking the TPs, the intermediate points shall be staked while measuring slack distance. The staking shall normally be done at intervals of 250 m. approx. along the centre line of the pipeline.

3.3.2 The intersection Points shall be serially numbered form the starting point. The serial

number of each Intersection Point shall be boldly inscribed on the marker stake. In addition, the Turning Point (TP) marker stake shall identify the Turning Point reference number from the starting point.

3.3.3 For Intermediate Points (IPs) letter “P” shall precede the serial number of the

intersection Point marker. For Turning Points, the letters “TP” shall precede the Turning Point reference number and the letter “P” shall precede the serial number of the Intersection Point.

3.3.4 The marker stakes at Turning points (TPs) shall be referred with three reference

stakes around the TP. The reference stakes shall carry the Turning Point reference number and their respective distance from the TP marker stake.

3.3.5 Change in direction of line shall be marked on the TP marker stakes. In addition,

direction markers near TPS and other locations shall be placed wherever necessary. 3.4. Stakes and Marker 3.4.1 All marker stakes shall be of pre-cast reinforced cement concrete(1:2:4) pillars or

stone , having dimensions 150 x 200 x 800 mm and shall be buried to a depth of 500 mm. at intervals of 250m approx. along the centre line of the pipeline. If, pre-cast RCC markers are provided, it should have reinforcement of 04 nos.-6 mm dia bars with 04 equally spaced rings of 6 mm dia. All pre-cast RCC pillars should be engraved with company name on one shorter vertical face .In case of stone pillars , Company name is to be written with the paint.

The exposed surface of the blocks shall have a smooth finish and shall be painted with ‘Post Office’ red paint. All letters and figures shall be paint marked on the surface of the blocks in white.




3.4.2 On the top surface of the reinforced concrete blocks, a cross inside a circle shall be engraved at the centre or a nail shall be put centrally inside an engraved circle, to indicate the exact position of the Intersection Point. The circle shall be of approximately 50mm diameter. In case of stone markers, a cross inside the circle at the centre of stone shall be made with the paint.

3.4.3 Surveyor can, however, propose to the COMPANY/ENGINEER other types of

stakes/markers which are better suited to site conditions. 4.0 BENCH MARKS 4.1 Bench Marks (BM) at approx. every 5 Km on permanent structures along the Right-of-

Use (ROU) i.e. within 100m side of RoU, shall be established and described. Additional bench marks shall be established near the major pipeline crossing sites, if any.

5.0 CROSSINGS 5.1 General

As far as possible, crossings shall be made right angles. The surveyor shall record the angles of crossing for all fences, property lines, utilities, railways, canals streams, etc. that are crossed. In addition, the true bearings of the centreline of the road, railway, canal as well as that of the pipe centre-line shall be recorded. Turning Points (TPs) provided near crossings shall be located, at least 50m from the crossing’s boundaries, in stable and firm ground.

5.2 Railway Crossings The angles for all railway crossings shall be as close to 90 degree as possible, but in no

case less than 85 degrees to the centre-line of the railway. 5.3 Primary Road Crossings The angels of crossing for secondary roads shall be as close to 90 degrees as possible,

but in no case less than 45 degrees to the centre-line of the roads. All seasonal roads, unpaved village roads, cart-tracks, etc. come under this category.

5.4 River/Stream/Nala Crossings These crossings shall be established as close as possible to the locations shown on the

route map. Crossings shall be located in a comparatively straight each of the river where the banks are stable and there is sufficient area for construction. Angle of crossing shall be as close to 90 degree as possible.

5.5 Canals/Drainages Ditch Crossings The angle of crossing shall be as close to 90 degrees as possible but in no case less than

60 degrees to the centre-line of the canal/drainage ditch. Crossings shall be located where there is no evidence of slumping or erosion of banks, or bed.




5.6 Utility Crossings Utilities crossed shall be located at centrelines with stakes containing station numbers

in the survey. The angle or crossing shall be measured and locations established relative to their above-ground facilities. The names and sizes of all utility lines shall be included in the survey notes. In the cases of overhead power and telephone lines, the distance to the poles and towers on each side of the survey line shall be measured, and the numbers of poles or towers noted. Line voltage shall also be recorded. Where possible, the survey shall be established so that there is a minimum distance of 50 meters from the survey line to the nearest High Tension pole or tower.

Underground utilities shall be located as far as possible and staked for a minimum

distance of 25 meters on each side of the survey line. 6.0 ACCURACIES IN MEASUREMENT 6.1 Surveyor shall incorporate corrections to the linear ground measurement due to

standard errors, variations from standard errors, variations from standard temperature and pull.

6.2 The error for angular closure for the work shall not exceed one minute per station and

for linear measurements it shall be read to the nearest 0.005 M. 6.3 The error on closure for measurements on vertical distance to establish bench marks

shall not be more than 24K mm (Where K is the linear distance in km).The observations for measurement of vertical distances on bench marks shall be read to accuracy to the nearest 5 mm and for Intersection Points and other points also Pipeline route and at crossing to the nearest 10mm. The error of misclosure in vertical distance shall be distributed linearly.

7.0 CHAINAGE 7.1 Slack distance measurement will be made using 50 meter steel tape or 30 meter chain.

However, in case of abrupt slope change the tape/chain is straightened parallel to the probable grading.

7.2 Distance between Intersection Points staked along the pipeline route shall be measured

and recorded. In addition, distance between level points shall also be measured and recorded.

7.3 Chainage will be continuous in the direction of survey. 7.4 The true bearing of all straights shall be observed and recorded. 7.5 Data on nature of terrain, viz. sandy, stony, vegetation, etc. and type of ground will also

be recorded along with chainages of change points. 7.6 Check on distance measurements will be by stadia method at the time of leveling. 7.7 Standard chain survey format will be used for record keeping.




8.0 MEASUREMENT OF HORIZONTAL ANGLES Horizontal angles are measured to indicate the change in direction of alignment and

specify the horizontal bend at the Turning Points. 8.1 Theodolite, reading direct to 10 seconds or better, shall preferably be used. Angles

shall be measured clockwise from back station to fore-station. Mean of two readings-one on face left and other on face right shall be taken as the horizontal angle.

8.2 The line at both ends shall be tied to the grid control system being used for end

facilities. True bearing at the beginning, end and every 15-20 KM shall be observed to keep a check on errors in angular measurement.

9.0 PROFILE 9.1 The continuous profile of the proposed pipeline route shall be established from the

reduced levels taken. i) at the starting point, ii) at all Turning Points (TPs) iii) at all Intermediate Points staked on the ground. iv) at all points on the pipeline route where there is a change in slope. 9.2 When the terrain is flat, reduced level shall be additionally recorded along the pipeline

route at 100m interval. 9.3 When the terrain is undulating observation of reduced level shall be made at a sufficient

number of points so as to given an accurate plotting of the ground profile along the route.

9.4 For road and railway crossings, the reduced levels shall b recorded at all points along

the pipeline alignment wherever there is a change in slope within the entire width of the Right-of-Use of the road/railway. CONTRACTOR shall prepare a detailed drawing for the crossing in scale 1:100 (in both horizontal and vertical directions) which shall be truly representative of the crossing profile.

9.5 For river/stream/nala/canal crossings, levels shall be taken at intervals of 5M upto 30M

beyond the highest banks on both sides. Levels shall be taken at closer intervals, if there is a change in slope. CONTRACTOR shall prepare a detailed drawing for the crossing in scale 1:100 (in both Horizontal and Vertical directions) which shall be truly representative of the crossing profile.

9.6 In right-of-Use having slope across the pipeline alignment, as encountered in hilly

areas, Ghat regions, ravines and other similar areas as directed by COMPANY, cross-section at 50 M interval and for a length of 50 M on either side of the pipeline alignment shall be observed and recorded.

9.7 For major water crossing sites, cross section as above shall be observed at both banks.




9.8 Method of RISE and FALL shall be used to compute reduced levels of various points. Check on computation shall be made by using the following formula:

Back site – Fore Site = Rise – Fall = First R. L. – Last R. L. 9.9 Maximum misclosure shall not exceed 24K mm where ‘K’ is the distance in Km

Maximum length of line of sight shall not exceed 100m. 9.10 All levels shall be with respect to Means Sea Level (MSL). 10.0 BUILT-UP AREAS 10.1 Monuments and Properties The pipeline alignment shall run clear of the existing monuments, properties and

structures etc., as indicated in Pipeline Route Survey Data Sheet (Annexure-IV). For congested areas, closer distance may be adopted, however, location shall be

approved by COMPANY/ENGINEER. 10.2 Parallel Alignment The pipeline alignment wherever runs parallel to an existing or planned under/over

ground facility will be treated as parallel alignment. For underground facilities surveyor shall identify and locate them with suitable special ground laths. The following clearances shall be observed in case of parallel alignment defined above.

- Between existing/planned electrical power cables/lines and the proposed line –

50.0 metres. - Between existing/planned communication cables/lines and the proposed line –

25.0 metres.

10.3 Parallel Encroachment Unless otherwise stated, when the pipeline alignment runs generally parallel to a road

or railway it shall be kept sufficiently clear of the Right of way limits of the facility. 11.0 SURVEY NOTES, OBSERVATIONS AND COMPUTATIONS 11.1 The procedures followed both for field and office calculations shall be such that the

results obtained shall be maintained by surveyor. 11.2 All up-to-date notes and observations related to the basis for determination of boundary

lines and corners shall be maintained by surveyors. 11.3. Survey records must contain schematic diagrams of all horizontal controls pertinent to

the project showing all existing and established control points, bench marks, any triangulation station and boundary lines.

11.4 Geo-graphical and UTM co-ordinates of all Turning Points and starting/end points of

the pipeline shall be computed and furnished to the COMPANY/ENGINEER.




12.0 MAPS AND DRAWINGS 12.1. All maps and drawings shall be made on standard format furnished by the COMPANY.

Surveyor shall perform mapping and drawing work so as to contain all relevant data consistent with the survey notes and observations. The drawings shall also contain details of roads, streets, highways, structures, all types of crossings, terrain, surface vegetation and all other details which will be required for the purpose of engineering design.

12.2 Following types of detailed survey drawings will be made - Right-of-Use Planimetry in UTM grid : 1:2500 along the line : 1:2500 across the line - Ground Profile : 1:2500 Horizontal : 1:250 Vertical - Crossing Details (Road, Railway, : 1:100 Horizontal Stream, Nala & Canal) : 1:100 Vertical Crossing details (River Crossing) Upto 250 M width : 1:200 Horizontal : 1:200 Vertical Upto 500 M width : 1:500 Horizontal : 1:500 Vertical Greater than 500 M width : 1:1000 Horizontal : 1:1000 Vertical - Detailed Pipeline Route Map : 1:50,000 on SOI Topo

Maps - Additional Route Map for Hilly, Ghat : 1:15,000 and ravenous regions - Cross Section for sloping Right-of-Use : 1:100 Horizontal : 1:100 Vertical Note: Crossing drawings shall be prepared using same horizontal and vertical scale as indicated above. No. of sheets may increased, if required. 13.0 PRESENTATION OF FIELD SURVEY DATA 13.1 Survey drawing

Survey drawing shall contain the following data as a minimum requirement. Right-of-Use Planimetry drawings shall show all objects within 50 meters on

either side of the Pipeline in Plain




In case of all rail, road, river, steam, canal and utility crossings, the angle of crossing shall be mentioned.

In case or rail, road, river, stream and canal crossings wider than 10m, the

distances at the start and at the end of the crossing from the nearest IP shall also be mentioned. For crossings less than 10m, the distance of the centre line of crossing from the nearest IP shall be given.

For all river, stream and nala crossings, the level of water at the time of survey

and the approximate surface velocity of the flowing steam shall be observed and recorded and reported in the survey drawings. Also, the general nature of the surface soil (soft/hard, normal soil or rock/boulders) at the bed and banks of the river/steam/nala shall be observed and mentioned in the drawings.

“Ground profile (chainage vs ground elevation) for the entire pipeline route shall

be prepared and presented in a tabular format using Microsoft Access Database format.”

13.2 Pipeline Route Map

Pipeline route map shall show all features including, but not limited to roads and railroads, canals, streams, lakes, rivers, villages, towns, and cities that are located within a distance of 10 km from the pipeline centre-line on either side of it. For the entire region, contours shall be plotted on the route map at 20m contour interval. Additional information like cultivated areas, barren land, areas prone to flooding, rocky areas and forests including access path/roads to Right-of-Use shall also be shown on the route maps.

Additionally for areas which are undulating such as hilly areas, Ghat regions, ravines,

and other areas as directed by COMPANY, Pipeline route map to a scale 1:15,000 shall be drawn over a distance of 1.0 Km from the pipeline centre-line on either side of it. For such areas, contours shall be plotted at 10m contour interval.

Right-of-Use Planimetry drawings shall show all objects within 50 metres on either

side of the Pipeline in Plain.

In case of all rail, road, river, steam, canal and utility crossings, the angle of crossing shall be mentioned.

In case or rail, road, river, stream and canal crossings wider than 10m, the distances at

the start and at the end of the crossing from the nearest IP shall also be mentioned. For crossings less than 10m, the distance of the centre line of crossing from the nearest IP shall be given.

For all river, stream and nala crossings, the level of water at the time of survey and the

approximate surface velocity of the flowing steam shall be observed and recorded and reported in the survey drawings. Also, the general nature of the surface soil (soft/hard, normal soil or rock/boulders) at the bed and banks of the river/steam/nala shall be observed and mentioned in the drawings.




“Ground profile (chainage vs ground elevation) for the entire pipeline route shall be prepared and presented in a tabular format using Microsoft Access Database format.”

14.0 DOCUMENTS/DATA SUBMISSION All drawings/reports/formats etc. submitted to the Company shall be prepared on

electronic media. All drawings/sketches shall be prepared using latest version of Autocad.

Population Density data and facilities data shall be furnished in data base provided by the Company. All reports and write-ups shall be in Microsoft Office software. All photographs shall be in JPG/TIF format. Two copies of final approved survey data/documents shall be submitted to Company on standard CD ROM and pen drive. In addition, three sets of hard copies of all approved survey data/documents shall also be furnished.




SOIL INVESTIGATION SURVEY 1.0 Objective The objective of soil investigation survey is to obtain visual engineering classification

of soil and geotechnical properties of soil when specified in data sheet for design & engineering of various facilities required along the pipeline route.

2.0 Requirements 2.1 General 2.1.1 The soil investigation includes boring, collection of disturbed samples from bore holes

and visual engineering classification of soil along the pipeline route and submission of detailed report to Company.

2.1.2 Visual classification of soil shall be in accordance with IS-1498; :IS Classification and

Identification of Soils for General Engineering Purposes” Geotechnical investigation of soil shall be carried out as per relevant clauses of IS 1892 and other applicable IS standards.

2.2 Location of Bore Holes 2.2.1 Boreholes shall be made at an intervals of 250 m along the pipeline route, at all

intermediate points where there is apparently a change in the type of soil and at other places as given below by Company/Engineer-in-charge.

2.2.2 For rail, state highways, national highways, rivers/streams and canals, at least one bore

hole shall be made at each crossing location. 2.2.3 Boring shall be carried out in accordance with the provision of IS:1892. Minimum

diameter of boring shall be 150 mm. Auger boring shall be resorted to above water table, whereas below water table the boreholes shall be advanced by rotary drilling with mud circulation through all kinds of soil other than rock. While boring above water table, no water shall be introduced in boreholes. Casing shall be used to support the sides of boreholes in soft to firm soil.

2.2.4 Except for crossing location as defined under clause 2.2.5, the boring shall be either

terminated at a depth of 3 m below NGL or on top of bed rock if rock is encountered at a depth of less than 3 m.

2.2.5 In case of boring at Highways (National/State), River and Railways crossings, the

boring shall either terminated at a depth of 5 m below NGL or on top of bed rock, if rock is encountered at a depth less than 5 m.

2.3 Sampling Disturbed representative samples shall be collected from all boreholes for visual

classification of soil. Collected soil samples shall be packed in container and identification label shall affixed on it indicating bore hole no., chainage, depth and visual soil classification.




3.0 Presentation of Survey Data 3.1 Results of soil investigation survey shall be submitted in the form of report covering as

a minimum the following.

a. Visual engineering classification of soils encountered along the pipeline route in bore log form. Depth of Ground Water Table (GWT) below NGL shall also be mentioned if encountered.

b. Soil profiles along the pipeline route shall also be prepared and attached with

the report. c. Regions along the pipeline route where hard rock is present and special

excavation techniques like blasting, etc. needs to be adopted for excavation of pipeline trench shall be clearly indicated in the report.

d. Summary of results obtained from tests and their interpretation to evaluate soil

parameters. 3.2 Visual engineering classification of soils obtained from bore holes shall be shown in

Alignment sheets also whenever preparation of Alignment sheets are in SURVEYOR’S scope of work.”




“ANNEXURE-I”

POPULATION DENSITY SURVEY 1.0 Objective

The objective of population density survey is to obtain details of population density (dwelling units, type of buildings, public places of gatherings etc.) along pipeline route in case of Gas pipelines .

2.0 Requirements 2.1 Population density data as per enclosed Annexure shall be collected along entire

pipeline route for a corridor extending 200 m on either side of the route centerline. Collected data for each filed as defined in Annexure shall be entered into Company supplied Microsoft access data base for further analysis by Company.

2.2 The population density data shall be marked in the planimetry (location of dwelling,

buildings, public places/facilities where more than 20 people assemble and multiple story buildings etc.) portion of the alignment sheets.

2.3 Facility/locations where 20 or more persons are assemble during normal use (viz.

school, hospital, factory etc.) shall also be clearly indicated with corresponding changes.”

2.4 Dwelling/facilities located within 15 m of the proposed pipeline route centerline shall also be collected and reported.

2.5 Population Density details shall be prepared and presented in enclosed format. 3.0 Presentation of Survey Data 3.1 The population density data shall be presented to Company in Company supplied data

base in electronic form. 3.2 Hard copies print out of electronic data shall also be furnished. 3.3 The drawings (Alignment sheets) showing population density data. In case alignment

sheets are not prepared by Surveyor, the same shall be made available by Company for marking of population density data.”




ANNEXURE-III

ADDITIONAL REQUIREMENT FOR GAS PIPELINE DETERMINATION OF POPULATION DENSITY INDEX AND CLASS LOCATION

1.0 When survey is performed for High gas pipelines, the class locations based on

Population density index as per ANSI B 31.8 “Gas Transmission and Distribution Piping Systems” shall be recorded along with chainages at change of each class location.

2.0 Population Density Index along the pipeline route shall be determined as follows

A zone, 200M wide on either side of the centre-line of the pipeline route, shall be considered. Then the entire route of the pipeline shall be divided into lengths of 1600 m such that the individual lengths will include the maximum number of dwellings intended for human occupancy. The number of such dwellings that are intended of human occupancy within each within each 1600m zone shall be counted and reported along with other survey data.

3.0 Area shall be classified based on guidelines as given below: a) Class 1: Location

A class- 1 location is any 1600m section that has 10 or fewer dwellings intended for human occupancy.

b) Class 2: Location

A class- 2 location is any 1600m section that has more than 10 but less than 46 dwellings intended for human occupancy.

c) Class 3: Location

A class 3 location is any 1600m section that has more than 46 or more dwellings intended for human occupancy except when a class 4 location prevails.

d) Class 4: Location A class 4 location include areas where multi storey buildings are prevalent and where traffic is heavy or dense and where there may be numerous other utilities underground.

4.0 In addition to the criteria contained in clause 3.0 above while classifying areas

additional consideration must be given to possibilities of increase in concentration of population along the pipeline route such as may be caused by the presence of schools, hospitals, recreational areas of an organized character, places of assembly, places of worship, etc. If one or more of these facilities are present, the area shall be classified as class 3 location.

5.0 Notwithstanding the provisions of clause 3.0 above, while determining class location of

an area due consideration shall be given to the possibility of future development of the area during the design life of the pipeline. If it appears likely that future development may cause a change in the zone location, this shall be taken into consideration while determining the zone location of the area.




ANNEXURE – IV”

PIPELINE ROUTE SURVEY DATASHEET Pipeline Size (NB, inch) : 28/22/18/16/14/12/10/8/6 Gradient *ROU) : 1:5 (max.) Along pipeline alignment 1:5 (max.) Across pipeline alignment Bend Radius : 30 D for pipeline size UP TO 16” 40 D for pipeline size greater than

16” Minimum Distance between TP’s : 100 m Maximum Deflection Angle at TP : 900 ROU width : 30 m Pipeline location in the ROU : Centreline of RoU width Minimum distance from existing Habituated dwellings : 15 m Buildings/structures/monuments : 50 m Co-ordinates of starting point/ Terminating point : To be filled by Survey Contractor Notes: 1. Number of TP’s along the pipeline route shall be kept to a minimum. Additional

traversing requirement for TP optimization shall be carried out by the Contractor prior to finalization of TP’s.

2. Chainages for pipeline shall start with 0.0 chainage in the direction of flow for each

Part. In case of spur lines the branch off location from trunk line shall be chainage 0.0 km.

3. At road/rail/canal crossing location, nearest TP on either side shall be located at a

distance not less than 50 m from the ROU of the facility being crossed, unless instructed otherwise by Company Representative.

4. In case of river crossings, no TP shall be located within 150 m from the defined bank

on either side, unless instructed otherwise by Company Representative.




ANNEXURE-V

Population Density Data along Pipeline Route

Pipeline Section No.- ……………… Id_ No.

Village

Name

Pipeline

Chainage in m

Perpendicular distance of

dwelling from pipeline centerline

in m

Direction Right or Left

Type of dwelling

(building/facility) note-1

Total no. of dwelling

units in case of PDM

Whether >20 people assembleduring normal course (yes/no)

(pp)

Remarks(refer

note-1)

0-15 15-100 >100 Notes : 1. Type of dwelling/facility shall be identified as TH - Temporary Hutments PD - Permanent Dwelling having less than 3 storeys PDM - Permanent Dwelling having more than 3 storeys PP - Public place like School, Hospital, Play ground, Market, Temple,

place for public gathering/ annual fare etc. (to be clarified under remarks)

2. Each dwelling unit in a multiple dwelling unit shall be counted as a separate unit.




STANDARD SPECIFICATION FOR

CORROSION SURVEY




CONTENTS 1. SCOPE 2. CODES AND STANDARDS 3. GENERAL 4. SOIL RESISTIVITY SURVEY 5. TESTS ON SOIL SAMPLES 6. ADDITIONAL DATA COLLECTION 7. REPORT




1. SCOPE

The specification covers the corrosion survey including measurement of soil resistivity chemical analysis of soil/ water and other cathodic protection related data collection along Right of Use (RoU) of the proposed pipeline.

2. CODES AND STANDARDS

Equipment and measurement techniques shall unless otherwise specified, conform to the requirement of following latest applicable standards:

BIS Specifications BS specifications and codes of practice NACE publications

The work shall be carried out in compliance with all applicable local laws and regulations.

3. GENERAL

This specification defines the basic guidelines for carrying out the corrosion survey. Contractor shall be responsible for providing necessary data interpretation based on corrosion survey measurements which is intended to form a basis for design of cathodic protection system for the pipeline to be buried along ROW.

4. SOIL RESISTIVITY SURVEY: 4.1 Unless otherwise specified the soil resistivity measurements shall be carried out at

intervals of approximately 500 mtr. along the ROU where soil resistivity is less than 100 ohm/mtr. and twos successive readings differ by more than 2:1 then additional soil resistivity readings in between the two locations shall be taken.

4.2 To carryout the soil resistivity measurement, Wenner's 4 Pin method or approved

equivalent, shall be used. The depth of resistivity measurement shall be approximate 1.5 mtr. from NGL. At locations where multi layer soil with large variation in resistivity/corrosiveness is expected, measurements at additional depth of upto 2.5 mtr. (approx.) or more shall be taken. In general the resistivity of soil which shall be surrounding the pipe shall be measured. Hence the depth of measurement/electrode spacing may vary depending on topography and strata at the area. In general, electrode spacing shall be approximately equal to 1.5 times the depth of the pipeline.

4.3 At places where Right of Way has not yet been cleared measurements shall be made

right over the centre line of pipeline route surveyed accounting for the cutting/ filling also.

4.4 All measurements shall be taken at right angles to the right of way unless otherwise

asked by OWNER or his representative at site. 4.5 At places in right of way where other pipe lines are already existing care shall be taken

to precisely locate such pipes line and take such precautions that observations are not adversely affected by presence of such pipelines.




4.6 Care shall also be taken that the observations are not influenced by presence of other

earth currents in the area especially in the vicinity of HT lines and plants using earth return in their source of power etc.

4.7 Wherever possible/ advised by GAIL depth of water table shall be determined by

resistivity observations. 4.8 All measurements shall be made and recorded in metric units. While recording the data

reference to the nearest intersecting point shall be made; To provide visual representation of variations in the resistivities along right of way, values shall be plotted on semi-log graph sheets. The resistivity graph shall also indicate the resistivities at additional depths measured at various locations and depth of water table.

5. TESTS OF SOIL SAMPLES

Soil/ water samples shall be collected along the Right of way for analysis. Samples shall be collected on an average at one location per every 10 KM along Right of way with minimum at two locations. Exact locations shall be decided at site depending on the type of soil, soil resistivity and in consultation with GAIL. The soil samples shall be collected at 1 mtr and 2 mtr. depth at each location.

The collected soil / water samples shall be analysed to determine presence and percentage of corrosive compounds including moisture content, oxygen activity and pH value.

6. ADDITIONAL DATA COLLECTION

The following data shall be collected with a view to generate design for evaluation of cathodic protection interaction possibilities due to presence of other services in Right of Way and its vicinity.

6.1 Route and types of Foreign Service/ pipelines in and around or crossing the Right of

Way. 6.2 Diameter, wall thickness, pressure, soil cover etc. of the foreign pipeline. 6.3 Voltage rating,, phase and sheathing details of parallel running or crossing cables with

ROU. 6.4 Foreign pipeline coating details. 6.5 Details of existing cathodic protection systems protecting the services including rating

and location of grounds bed test station locations and connection schemes etc. Where pipeline is likely to pass close to any existing ground bed, necessary anode-bed potential gradient survey shall be carried out.

6.6 Interference remedial measures existing on foreign pipelines/ services/ shall be

collected from the owner of the foreign pipeline/ services. 6.7 Graphical representation of existing structure/ pipe to soil potential record. T/R unit /

CP power source voltage/ current readings.




6.8 Possibilities of integration/ isolation of the pipeline CP System with foreign pipeline/

structure CP System, which may involve negotiations with owner's of foreign services.

6.9 Information on existing and proposed DC/AC power sources and system in the vicinity

of the entire Right of way. 6.10 Crossing and parallel running of electrified and non-electrified railway tracks along

with details of operating voltage and type (AC/ DC). 6.11 Crossing or parallel running of any H.T. AC/DC overhead line with in approximately

25 mtr. from ROU alongwith details of voltage rating, fault level etc. 6.12 Any other relevant information that may be needed in designing and implementing of

proper cathodic protection scheme for the proposed pipeline. 7. REPORT

On completion of all the field and laboratory work an interim report incorporating results generated from surveys, additional data collected, results of test carried out, etc. shall be submitted for comments/ approval. The final report incorporating comments/ missing data shall be furnished for records. The report along with various drawings, graphs etc. prepared in connection with the work shall be submitted along with three sets of hard copies and one copy on standard CD ROM & one in Pen Drive, by the contractor.




SPECIFICATION FOR CADASTRAL SURVEY

CONTENTS

1 SCOPE

2 OBJECTIVES

3 REQUIREMENTS

4 DELIVERABLES




1.0 SCOPE

This document covers various requirements for cadastral survey to be carried out along pipeline route as further described in this document in respect of Detailed Route Survey of proposed gas pipeline This document shall be read in conjunction with Scope of Work Document No. for Pipeline Route Survey.

2.0 OBJECTIVE

The objective of the cadastral survey is to identify the ownership & land use details, collect data/all other details sufficient for acquisition of RoU under the Petroleum and Minerals Pipelines (Acquisition of Right of User in land) Act of Government of India.

3.0 REQUIREMENTS

The Contractor at his own cost, shall collect all revenue and other maps as well as the forms required for carrying out cadastral survey. The survey as a minimum shall fulfill following requirements:

3.1 Preparation of Cadastral Maps in 1:2500 scale as per the format approved by the

Company showing the pipeline route and areas 50 mtr. on either side of pipeline route. 3.1.1 Property identification/survey number, Part “Hissas” on survey numbers as per the

latest official revenue records.

3.1.2 Identification of RoU of existing pipelines/utilities on the Cadastral maps.

3.1.3 Number and type of trees within RoU limits.

3.1.4 Other major features such as given below: - All built up areas. - Religious places, schools, Dharamshala, hospitals etc. - Railway lines, National/State Highways and district / village and

Panchayat roads. - Creeks, rivers, canals, drains etc. - Forest land (Reserved/Protected/Social). - Industrial Land. - Quarry/mining and other prohibited areas. - Over-head/underground utility crossings - Type of land and type of crop.

The above information shall be adequate in all respect for RoU acquisition and forest clearance (if any). Width of RoU proposed to be acquired shall be 30 mtr. i.e. 15 mtr. either side of centre line of the pipeline.

3.2 Arrange for and furnish VII and XII (7/12) extracts in duplicate of all land areas

covered/shown in ROU Corridor as per para 3.1 above. The extracts are required to be duly certified by the local concerned authorities. Expenses in obtaining these extracts shall be borne by the Contractor.




3.3 In respect of the map at 3.1 above, Contractor’s work of marking part “Hissas” of these

part “Hissas” as per the latest revenue records, shall be checked/verified by the local concerned authorities. Contractor shall ensure that the land records are submitted to company for checking and verifications, as work proceeds.

3.4 Prepare a schedule, as per format to be approved by Company/Engineer-In-Charge

showing information on part “Hissas” and details of owner (to be extracted from map at para 3.1 above for obtaining pipeline Right of Use (ROU)

3.5 Furnish two copies of requisite Performa duly completed on proper schedule form,

including of procurement of all revenue maps and forms required from revenue department, submitting all proposal village wise and Tehsil wise.

4.0 DELIVERABLES

The contractor shall submit following documents:

i. Cadastral maps in scale 1:2500 ii. Cadastral Survey Report including summary of ownership details and other

documents as per clause 3.0 as above. iii. All drawings/reports etc. submitted to the Company shall be prepared in

electronic media. All drawings/sketches shall be prepared and submitted using latest version Auto CAD. All reports and write-ups shall be in Microsoft Office software. Two copies of final approved Cadastral Survey report/drawings shall be submitted to the Company on CD ROM and pen drive.

In addition, three sets of hard copies of all approved Cadastral Survey Report/formats/drawings shall also be furnished.




STANDARD SPECIFICATION FOR GIS & LIS DEVELOPMENT SURVEY




GIS & LIS DEVELOPMENT 1.0 This specifications deals with data acquisition, data recording, storage handling,

processing and development of Geographical and Land Information System (GIS&LIS) on a specified format using standard and approved quality control parameters and its delivery to Company in a fully customized fashion.

1.1 GIS AND LIS BASED SURVEYS

Contractor shall carryout development and customization of GIS and LIS for the surveys covered in the present scope of work that includes:

i) Geodetic and engineering surveys ii) Soil investigations iii) Crossing surveys iv) Cadastral surveys v) ROU acquisition surveys/records vi) Population density surveys vii) Land use pattern survey viii) Soil resistively survey/corrosion surveys ix) Disaster management requirement and environmental effect parameters x) System design for GIS/LIS and integration with Company’s central data

information system etc.

The GIS & LIS to be developed in such a fashion that there is a complete scope for horizontal and vertical expansion for the system growth and integration. Theme coverage/layers for GIS/LIS shall be as per requirement frozen by Company at the System Design and Customization Stage.

1.2 The major requirement of development of GIS and LIS shall be as given below:

i) The entire system to be geo-referenced i.e. from the point of dispatch to receipt station and associated distribution network including the facilities at each end as well as en-route, the major crossings, landmark etc. shall be as per grid and projection system to be approved by Company.

ii) Contractor shall submit a schedule of work, which will cover details of each

activity and time required/planned for carrying it out. This schedule will be scrutinized commented upon and approved by Company for implementation.

iii) Contractor shall submit a Quality Assistance Plan (QAP) which will cover

details of each activity its scope, quality parameters, quality checks, inspection schedules attributes for input and output/deliverables, test check procedures and its correlation with implementation schedule. The QAP will be scrutinized, commented upon and approved by company for implementation.

iv) Contractor to deploy the best-suited methods, equipment, tools software,

personals, analyst, and surveyors to carry out the development and customization of GIS and LIS.

v) Contractor to use the best and the approved quality materials for preparation

maps, reports, software, storage mediums etc.




vi) Contractor to confirm having in his possession the requisite tools, equipment,

know-how and experience to carry out eh development of GIS and LIS including facilities to handle, process and deliver output from the satellite imageries. In case Contractor shall tip up with an associate for this party of scope. The details of sub-vendor/associate shall be furnished at the time of submission of offer.

vii) The developed GIS & LIS shall be thoroughly customized to suit Company’s

requirement on technical, organization, training, operational information management system are and integration with existing/proposed organizational systems for planning, control and information management. Wherever, Company is not a position to clearly specify and individual attribute/fields of information at the execution stage-adequate provision for implementation at a later stage would be created in the respective system for such cases.

viii) Contractor to comply with Open GIS Consortium (OGC) data standards.

ix) Development of GIS & LIS package should be done suing industry standard

programming languages like Visual Basic, Visual C**, Java, Oracle etc. 1.3 Contractor’s scope of work to include the following:

i) Prepare and submit implementation schedule, QAP and detailed methodology for scrutiny and approval by Company.

ii) To prepare a detailed user need assessment report/white paper at the

commencement of work for approval by Company.

iii) Collect input data, topo sheets, Satellite imageries based survey maps, reports and store/handle for further processing with Contractor’s survey work.

iv) Propose projection parameters, spatial data parameters, grid system, geo-coding and geo-referencing parameters, output/deliverable parameters etc. for company’s approval.

v) Carryout data validation of received input, carryout scanning of topo-sheets,

integrate the recordings made by GPS/DGPS and other survey instruments to complete/collate the input data.

vi) Carryout image processing and generation of rectified image on approved

system like ERDAS.IMAGINE or similar.

vii) Carryout interpretation and digitization of all physical features. Symbolization/legend structure, layering, edge matching, topological integrity, mosaic king, database linking, incorporation of ground truth details, incorporation of processing techniques for attribute allocation etc. after passing through quality assurance stages as per approved QAP.




viii) Carryout detailed interactive database design in consultation with Company. Assign attributes, develop LUT (Look up Tables), layered database, test check the proposed GIS & LIS.

Note : For LIS – Use of “ROU Master” or equivalent approved software is mandatory.

Similarly, for GIS development the software to be adopted shall be got approved at the commencement of the project. The GIS & LIS to be developed in a seamless manner over the entire scope of work.

ix) Generation of output maps in specified format and scale as per specification. x) In the cross-country zone all information as given in the technical specification

be provided. In the densely populated portions all information requirement as per specification for detailed survey and Cadastral survey shall be incorporated such as ward and property boundaries (house numbers, classification as residential, commercial, government, number of stories etc.) roads, landmark, feature, locality names and connectivity with proposed facilities. Major Commercial & Industrial establishment being studies as potential consumers etc.

The data to also include sewerage manholes, nallahs, channels, drains, canals, garbage dumps, existing electric and telephones lines, bridges, land crossings, fly-overs, proposed expansion of roads, railways, other facilities e.g. water supply, sewerage system, telecommunications network etc.

Note: Contractor to collect, evaluate, ensure correctness of source, positional

accuracy, ownership, attribute authenticity to the data collected and only revalidated data to be included for the database.

xi) To customize each layer and attribute for present available data and full database as per requirement of Company. To design system requirement for operation and maintenance of GIS & LIS Package.

xii) To deliver a draft GIS & LIS package to company along with a detailed

demonstration for scrutiny, trial run and observations; load the trial packages on company’s system and configure for optimal use.

xiii) To carryout the modifications/charges and update of the GIS & LIS with respect

to the finally approved survey reports and mapping carried out under the overall scope of work. Observations and detailed comments on submissions by Contractor at each stage of work, corrections/modifications and addition to route or methodology, etc shall be carried out by contractor.

xiv) To deliver to company the storage code of the application package with

proper documentation.

xv) To customize the GIS & LIS packages as finished products and deliver the same to company. All upgrades of package during the period shall be provided at no additional cost to Company.




Components of GIS & LIS

i) Data Acquisition and input

This will comprise of following elements:

a) Owner supplied: Company shall provide SOI topo-sheets (Wherever available in 1:50,000 & 1:250,000 scales) for proposed pipeline route indicating location of facilities such as S/V stations, Tap off stations, IP Station, Dispatch & Receipt stations etc.

b) Contractor generated: Contractor shall acquire and generate bulk of his

input by carrying out detailed survey, processing maps, city maps, guides, gazettes, satellite imageries (in merged LISS-III & PAN images from NRSA in 1:12,500 scale), cadastral data/maps/records, historical data on rivers/water-bodies, reading of SOI benchmarks/grid system values; recordings of GPS/DGPS and other equipment published data on development plans, costing and revenue data etc.

Contractor shall collect, store, classify, absorb, clarify, handle and protect all input data and acquired data in good shape till completion and handing over of finished work. Contractor shall not make any unauthorized alteration, modification and copies of any input data unless explicitly authorized by company.

All input and acquired data shall be returned to company at the completion of work in its original form. Any damage to the input data shall tantamount to violation of contract and attract penalties as per provision of contract.

ii) Data Storage: This involves data formats, hardware configurations, storage media and storage structure. This closely related to the data input and data retrieval system.

Contractor to ensure standard and approved system of data handling and storage. Only the latest and state-of-art equipment, software (latest version or approved version) shall be deployed. Each stage of data acquisition and handling shall pas through Quality Assurance procedure.

iii) Data Retrieval: It is a critical component of GIS & LIS development as it

directly affects the user’s ability to get the desired information and to structure the information to further process the data.

Contractor to ensure adequate system capacity to handle, store and retrieve the input and semi-processed data from various sources – in hard copy form or electronically or both and made available to all users ensuring common uniformity with all kind of associated information.

iv) Data Manipulation and Analysis: These are the important capability of GIS &

LIS and dependent on the user needs. Main Steps are:




a) Scanning topo sheets maps engineering drawings and revenue maps using large scanners.

b) Clean up and modify raster files created by scanning using raster editor

software package. c) Load, save and plot a variety of binary file types. d) Map raster data to vector graphics.

e) Warp raster images to confirm to present coordinates with up to fifth –

order polynomial works.

f) Create Raster files and commence digitization

Note: Generally used conversion tools – AUTOCAD Map-5.0, CAD Overlay; Micro Station ERDAS.IMAGINE.

For analysis to develop the GIS & LIS following steps shall be required:

a) Processing of Satellite/spatial, stored data and survey records separately.

b) Image fusion on data merging of all inputs.

c) Image enhancement by optimizing contrast, brightness and preparation

of histogram (graphical frequency distribution).

d) Interpretation of occurrences, frequency distribution, features.

e) Preparation of LUT (Look up table) and video look-up-table (VLT) leading to Digital-to-Analog Converters (DAC).

f) Performing stretch and filtering procedures. Wrapping of the merged images to new design files to be carried out.

g) All co-ordinates system of input files to be converted to designated co-0rdinate system.

h) Creation of final control image and its registration.

i) Creation of mosaic king from several images, overlaps, adjoining surveys, etc. for a final control registered image.

j) Final image analysis, legend assigning supervised/ unsupervised training to be carried out (ISODATA training can also be resorted to, if system permits).

k) All information related with terrain, soil, land use, cadastral, co-0rdinates, facility etc. be carefully attached to the graphics in a continuous and seamless manner to generate a dynamic image.




l) A modified Digital Terrain Model (DTM) with material/graphical representation of surface features is generated – either on Triangulated Irregular Network (TIN) or grid system. Merge all the grid or TIN models to make unified model.

m) Assign Z-multiplier, Z-resolution, Z-scale and Aspect.

n) Demonstrate Aspect Polygons calculations, slops calculations, slope polygons, surface area, volumes, and cut & fill quantities etc.

o) Create the drape image (3-D display).

p) Analysis of the final image for various company assigned attributes e.g. route adjustment to minimize impact on sensitive or problem area, locating optimum access roads, work camp location; area prone to forest fire, soil erosion, pollution hazard area; periods and location of low flow rate for scheduling water crossing, connectivity with existing or proposed networks/facilities, surveys, infrastructure etc. all future operation, maintenance related needs/requirement are addressed at different levels of GIS & LIS.

q) Interact with company to finalize the layers of GIS & LIS and adjust/modify this process till desired results are achieved. Keep enough provision for future expansion on field, space and layers.

v) Output: This comprises of interactive display of digital data sets in both

hardcopy presentation and electronically.

Preparation of maps, statistical data, calculations, GIS & LIS formats as per company requirement and technical specification.

The output shall be designed in such a manner that requirement specific drawings/database are generated, i.e. features to include diversions for engineering data or isometric details, reference to represent relationship between geographic area and a detailed survey drawing or cadastral drawing, a document reference to represent a relationship between organizational structure and disaster management network, plant/facility information representing physical assets of utility with their reference drawing, brief specification, part number, inventory detail, other user applications; features to correlate spatial data and maps with more detailed revenue data for ROU acquisition and crops compensation etc.

The output shall be delivered in specified number of copies, format and medium as specified. Since, the output is a customized package it will be prepared and delivered in a format conforming to industry standards and OGC compliant.

vi) System Management: This aspect shall relate to feature customization system

delivery, system training, system networking, system operation and maintenance including providing updates and upgrades of the GIS & LIS software package. All features shall be based on the agreed scheduled, QAP and specification. Special attention shall be paid to design and maintain the system security. Predefined system review, modification levels and frequency




and authorization shall be built in the system. Although, System Management shall be transferred to Company on delivery and training, its periodic upkeep, defect remedy, update and upgrades as per specification shall be Contractor’s responsibility.

1.4 Technical Specification of GIS & LIS

The GIS & LIS software application package should be able to handle the following applications:

a) Spontaneous potential graphing b) Pipeline profiling

c) Handle CAD files which show the piping layout and other plan of the facilities

d) Images and scanned documents

e) Creation of an alignment sheet and DTM

f) Least cost path analysis

g) Inspection and material data updating and listing through a form menu

h) Pipeline re-routing using COGO

i) Record update and maintenance

j) Emergency notification lists display

k) Map creation

l) Identification of the pipeline network facilities; Tolerance settings for the same.

m) Query by location, by attribute, by logical selection (all queries based on logical

selection parameters).

n) Report generation as per user needs.

Details of each of the above are provided below: 1.4.1 Service Potential Graph (SP Graph):

Sp GRAPH draws a spontaneous potential graph. There should be two options for selecting the beginning and ending points for graphing by Mouse or by Station. The Mouse option must prompt user to select points by pointing at the screen. The Station option must bring up a menu for user to enter station values.

After this a graph must be created showing the pipe/soil profile over station. The graph data must be pulled from database so any update would be reflected in the graph immediately.




1.4.2 Profile:

The Profile must draw profile of the ground and pipeline. There must be two options for selecting the beginning and end points for profiling by Mouse or by Station. Select the Mouse option, which prompts you to select points by pointing at the screen. The Station option must bring up a menu for user to enter station values.

The result should be a profile of the pipe segment selected. The ground elevation and the pipe depth must be displayed in different colours.

1.4.3 Facility CAD; Scanned Images and Documents:

This should allow user to view CAD layouts of stations and other facilities. It should also be possible to attach and view various type of standard office document and *.pfd files.

1.4.4 Alignment Sheet:

The Alignment Sheet application must create an alignment sheet for a user-defined range of data. It should be possible to select the section of pipeline segment by mouse click or by station. It should be possible to take plots of the alignment sheets.

The alignment sheet should be created in a standard format with information like northing arrow, crossings, chainage etc.

1.4.5 Cost path:

The Cost path application should calculate the least cost path for pipeline routing between two points. It should take into account parameters like slope, road proximity, water proximity, pipe proximity, and material cost. It should do the analysis for each of the parameter separately then it should also be possible to assign weight ages to any of the mentioned parameters and perform a combined analysis for the area.

There should be a macro level result that specifies the corridor for the least cost path. It should then be possible to do micro level analysis specifying the least cost path based on the analyzed data.

1.4.6 Inspection Report

It should be possible to handle the inspection reports in the GIS system. There should be a provision of in putting such data for further use and analysis.

1.4.7 Pipeline Re-Routing:

The application should allow rerouting of pipelines dynamically and update all the corresponding records automatically. The alignment sheets should also be updated automatically *on the fly*.

1.4.8 Facility Record Maintenance:

The application should be capable to handle the maintenance records for various facilities.




1.4.9 Emergency Notification:

The software should be able to handle emergency notification for various categories of concerned people for respective pipeline segments.

1.4.10 Map Plot:

It should be possible to take prints/plots of the map and other GIS/LIS outputs.




(SECTION – VII)

TIME SCHEDULE




Time Schedule

The period of completion of work shall be as given below : Sr.No. Activity-Survey From the date of FOA / as

mentioned in FOA (in days) Remark

A) Recci survey & submission of report 01 New Route 30 days

Including mobilisation period

02 Wherever de-tour is required in complete length of existing RoU of respective parts i.e. Part-I, II & Part-III

30 days

B) Detail Route Survey including corrosion, soil resistivity & PDI survey & submission of report 01 For Part-I & Part-II 120 days Including mobilisation

period 02 For Part-III 90 days C) Cadastral Survey & submission of report 01 For Part-I & Part-II 150 days Including mobilisation

period 02 For Part-III 120 days D) Submission of developed & customized GIS & LIS Package 01 For Part-I, Part-II &

Part-III 30 days after completion of Cadastral Survey

STAMP & SIGNATURE OF TENDERER



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