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Brief Company Introduction

Field Equipment and Lab Facilities

Technical Key Staff

Past Experience in Geotechnical and Feasibility Studies in Afghanistan

Methodology of Work for Feasibility Study and Geotechnical Survey

OGC as a member of Omran Holding Group (OHG) was established in 2007 to provideprofessional services in the field of Geotechnical Engineering Consulting and MaterialLaboratory Testing for USACE-AED, USAID, Contractors and Afghanistan Government.

Certified by USACE-AED, AISA and Afghanistan Government Ministries

Kabul Main Office and Several Provincial Branches and Job Labs

Omran Geotechnical Co. (OGC) Brief Review

Field of Services:

Geotechnical Site Investigation

Development Feasibility Studies

Geotechnical Engineering Analysis

Geotechnical drilling and soil & rock sampling and coring

Construction Material Laboratory Testing

Construction Observation and Inspection Testing

Groundwater & Hydrological study and Managements

Water Resource Study and Water well Construction

Mining Exploration Services

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OGC Key Staff

No. Name Position Qualification Status

1 Abdullah Najafi President M.Sc. in Geotechnical Engineering 14 Years

2 M. Naser Ahmadi Board of Direction member M.Sc. in Water Engineering 14 Years

3 Mahmoud Baligh Board of Direction member M.Sc. in Geotechnical Engineering 16 Years

4 Ahmad Salehi Board of Direction member M.Sc. in Civil Engineering, Structure 12 Years

5 Reza Khodadadi Board of Direction Member M.Sc. in Environmental Engineering 10 Years

6 Asghar Mousavi Board of Direction Member M.Sc. in Environmental Engineering 12 Years

7 Moh. Salim Husseini Geotechnical Engineer M.Sc. in Geotechnical Engineering 8 Years

8 Reza Nezami Field Investigation Manager Bachelors in Oil & Gas 8 Years

9 Abdul Hayat Lab Manager Bachelors in Geology 14 Years

10 Saber Dehqan Senior Field Geo-Engineer Bachelors in Geology 6 Years

11 Fahim Tokhy Geotechnical Engineer Bachelors in Geology 6 Years

12 Ahmad Mahdiyar Geotechnical Engineer Bachelors in Geology 5 Years

13 Khaliq Khaliqyar Geotechnical Engineer Bachelors in Geology 6 Years

14 Eesa Ahmadi Sr. Business Developer Bachelors in Business Administration 10 Years

15 Ghulam Reza Rezaiee Finance Associate Bachelors in Economics 6 Years

16 Amin Mohammadi Logistic Officer Bachelors in Law 7 Years

17 Aminullah Najafi Lab Technician Diploma 6 Years

18 Nowruz Ali Hussaini Geotechnical Driller Diploma 4 Years

Our Geotechnical Engineering Analysis Services includes:

Foundation Engineering

Seismic Hazards

Ground Motion Analysis

Liquefaction Analysis

Slope Stability Analysis

Settlement Analysis

Retaining Structures

Reinforced Earth

Traffic and Pavement Studies

Geotechnical Engineering Services

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Geotechnical Drilling/ Rock Coring Services

10 Core Drilling Rigs

Capacity of 300m core drilling in rock strata

Expert Afghan Drillers and Engineers

Full drilling equipment

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OGC Sub-Surface Exploration

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OGC Experiences in Feasibility Study Projects in Afghanistan

No. Dam Site/Description Clients Date Status

1 Kama Hydropower Dam, KunarProvince (Borehole drilling and field permeability tests)

MEW, MahabGhods Eng.Cons. Co.

April 2009 Pending for Security Problems

2 Dam Sites at Badakhshan, KeshmAnd Khan Abad (Total 15 Boreholes with 15-25m depth at rock strata with permeability field tests)

gtz / MumtazCons. Co.

December 2009 Completed

3 Kunnar – Gambiri Hydropower Dam, Kunar Province (Boreholedrilling and field permeability tests)

MEW, Toos AbEng. Cons. Co., Ev-Youl Co.

January 2011 Pending for Security Problems

4 Rock Coring and Field testing for Bamyan Road – Culverts, Tunnel and Bridges

Italian C.LOTTI & ASSOCIATI/ OHG

November 2011 Completed

5 Pashdan Multipurpose Dam Project, Karokh, Herat (Borehole rock core drilling and field permeability testing)

MEW / Hewadwal-AZETQ JV

December 12 Completed

6 Feasibility Studies of 10Small/Medium Dam Sites in North of Afghanistan (Faryab, Jawzjan, Balkh, Samangan and Saripul)

MEW / WAPCOS Limited

In Progress from January

2013

In Progress

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OGC Sub-Surface Exploration Resources

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Laboratory Testing Services

Omran Geotechnical Company Laboratories:

Common soil testing Advanced soil testing Aggregate Testing Concrete Testing Cement/Mortar Testing Asphalt/Bitumen Testing Water and Wastewater Testing Welding Inspection Testing Petrography Laboratory Testing Rock Mechanic Laboratory

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Rock Mechanic

OGC Laboratories

PetrographyConcrete& Asphalt

Soil Mechanic

Soil Mechanic Laboratory

Laboratory Tests of Soil Mechanic:

ASTM Test Title

ASTM D 421 Dry Preparation of Soil Samples for Particle-Size Analysis and

Determination of Soil Constants

ASTM D 422 Particle-Size Analysis of Soils

ASTM D 854 Specific Gravity of Soil Solids by Water Pycnometer

ASTM D 1140 Amount of Material in Soils Finer than the No. 200 (75-um) Sieve

ASTM D 1556 Density and Unit Weight of Soil in Place by the Sand Cone Method

ASTM D 698 Laboratory Compaction Characteristics of Soil Using Standard Effort

ASTM D 1557 Laboratory Compaction Characteristics of Soil Using Modified Effort

ASTM D 3017 Water Content of Soil and Rock in Place by Nuclear

Methods (Shallow Depth)

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ASTM Test Title

ASTM D 1883CBR (California Bearing Ratio) of Laboratory-Compacted Soils

ASTM D 2166 Unconfined Compressive Strength of Cohesive Soil

ASTM D 2216Laboratory Determination of Water (Moisture) Content of Soil and

Rock by Mass

ASTM D 2487 Classification of Soils for Engineering Purposes

ASTM D 4318 Liquid Limit, Plastic Limit, and Plasticity Index of Soils

AASHTO T 93 Determining the Field Moisture Equivalent of Soils

CRD-C 654Standard Test Method for Determining the California Bearing

Ratio of Soils (Field Test)

ASTM D 2922 Density of Soil and Soil-Aggregate in Place by Nuclear Methods

(Shallow Depth)

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ASTM Test Title

CRD-C 655-95 Standard Test Method for Modulus of Soil Reaction

ASTM D 2434 Permeability of Granular Soils (Constant Head)

ASTM D 2435 One-Dimensional Consolidation Properties of Soils Using

Incremental Loading

ASTM D 5333 Standard Test Method for Measurement of Collapse Potential

of Soils

ASTM D 2850 Unconsolidated-Undrained Triaxial Compression Test on

Cohesive Soils

ASTM D 3080 Direct Shear Test of Soils Under Consolidated Drained

Conditions

ASTM G57-06 Standard Test Method for Field Measurement of Soil

Resistivity Using the Wenner Four-Electrode Method

BS 1377 Methods of Test for Soils for Civil Engineering Purposes,

Chemical and Electro-Chemical Tests

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Size Analysis

Atterberg Limit

UCS Hydrometer16

Soil Mechanic Laboratory Equipment

Modified Proctor

CBR

Direct Shear

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Consolidation

Collapse Potential

Permeability

Plate Load Test18

Rock Mechanic Laboratory

Rock Core Specimen

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The OGC rock mechanic lab has equipped from 2011. Tests on intact rock are

associated with describing the character of the rock material, measuring the

mechanical properties, and measuring other properties.

OGC Rock Mechanic Laboratory Equipment:

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Test Title Result Method

Water Content of Soil and Rock by Mass w % ASTM D 2216

Point Load Strength Test Is, qc ASTM D 5731

Indirect Tensile Strength Test qt ASTM D 3967

Durability Index Test Id ASTM D 4644

Direct Shear Strength Tests τ & C & φ ASTM D 5607

Ultrasonic Elastic Constants of Rock Vp & Vs ASTM D 2845

Rock Hardness by Rebound Hammer Method UCS ASTM C 805

Unconfined Compressive Strength qc ASTM D 2938

Triaxial Compressive Strength Testτ & C & φ

ASTM D 2664

Permeability of rock mass in field K Leugeon method

Rock Mechanic Tests:

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Point Load Test

Durability Index Test

Direct Shear Strength Test

Indirect Tensile Strength Test

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Ultrasonic Test

Rebound Hammer

Unconfined Compressive Strength

Triaxial Compressive Strength Test

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Petrography and Mineralogy

Laboratory (PML)

Petrography is the microscopic study of rocks, minerals or man-made materials.

What is petrography?

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1) Concrete Petrography

2) Mineralogy and petrology in Mining

3) Petrography of Rocks for Construction

4) Thin Sections/Polished Thin Sections

5) XRF and XRD analysis for determines the elemental and mineralogical info

What Can Petrography and Mineralogy Laboratory (PML) do for you?

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Petrography: A Tool for Concrete Investigations

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Case Studies – What’s in this Stuff?

Cementitious Materials - Portland Cement

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Aggregate

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w/cm

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Case Studies – Why is it Cracked?

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Case Studies – Why is it Cracked?

Internal Expansion Mechanisms (ASR, D-CRACKING, DEF)

ASR

DEF

D-CRACKING

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Methodology of Work for Feasibility Study

and Geotechnical Survey

1-Site Visit

2-Select and Located exact Bore Point ( for Drilling )

3-Prepare the site for mobilization

4- Start the Drilling and sampling according to SoW

5- Disturbed and Undisturbed Soil sampling or Rock Coring

6- Field Tests ( SPT, CPT, FDT, Infiltration, Percolation, Permeability tests…)

7- Soil/Rock samples collection and maintenance

8-Borehole Field Logging

9- Borehole locking and Water Table Recording

Field Work Methodology, … step by step…

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Site Visit

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Finding the Exact Drilling Points

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Preparing the Borehole Location

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Geotechnical Drilling/ Soil Sampling/Rock Coring

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Disturbed and Undisturbed Soil Sampling

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Borehole Locking

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Field Permeability Test Equipment

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Borehole Logging

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THANK

YOU