10434_1

832019 10434_1

httpslidepdfcomreaderfull104341 114

m

Tiwl-wWFTmf hwTm TliMm witrsquon

( H7 TJ p lwr )

Indian Standard

IS 1 04 34 (Pa r t 1 ) 2 00 3

(-IJIdww

INSTALLATION MAINTENANCE ANDOBSERVATION OF DEFORMATION

MEASURING DEVICES IN CONCRETE ANDMASONRY DAMS mdash GUIDELINES

PART 1 RESISTANCE TYPE JOINTMETERS 62s

( First Revisio )

ICS 93160

0 BIS 2003

BUREAU OF IN DIAN STANDARDSMANAK BHAVAN 9 BAHADUR SHAH ZAFAR MARC

q NEW DELHI 110002

832019 10434_1


Hydraulic Structures Instrumentation Sectional Committee WRD 16

FOREWORD

This Indian Standard (Part 1) (First Revision) was adopted by the Bureau of Indian Standards after the draftfinalized by the Hydraulic Structures Instrumentation Sectional Committee had been approved by the WaterResources Division Council

To minimize cracking large straight gravity and arch gravity dams are made in blocks separated from eachother by transverse and longitudinal contraction joints To restore the dam to its monolithic state for integratedbehaviour contraction joints are grouted with cement grout Grouting of joints is done when the joints haveopened to maximum Measurement of joints movement during grouting operation will indicate how much groutshould be pumped into the joints

Measurements of joint movements subsequent to the completion of the grouting of contraction joints providesinformation regarding the behaviour of the grouted joints

Surface measurements and joint movements will be useful for watching shearing movement of joints Thesemeasurements can be done with mechanical strain gauges applied to gauge inserts However full reliance cannotbe placed on the surface measurements as all parts of joints do not open at the same time and not even the sameamount Internal joint movement may therefore also need to be measured Vibrating wires type jointmetersfor measurement of joint movement at the surface and in the interior of concrete and masonry dams are beingseparately covered

This standard has been published in two parts Part 2 of the standard covers foundation deformation measuringdevices

This standard was first published in 1982 This first revision is being taken up to incorporate the knowledgegained during the use of the standard In this revision reference clause has been added and some addition hasbeen made in the method of installation of resistance type jointmeter

The composition of the Committee responsible for the formulation of this standard is given at Annex E

832019 10434_1


IS 10434 (Part 1) 2003

Indian Standard

INSTALLATION MAINTENANCE AND

OBSERVATION OF DEFORMATIONMEASURING DEVICES IN CONCRETE ANDMASONRY DAMS mdash GUIDELINES

PART 1 RESISTANCE TYPE JOINTMETERS

( First Revision)

1 SCOPEThis standard (Part 1) covers the details of installationmaintenance and observation of resistance typejointmeters of tie embedded type for measurement ofjoint movements at the surface and in the interior ofconcrete and masonry dams

2 REFERENCES

The following standards contain provisions whichthrough reference in this text constitute provisions ofthis standard At the time of publication the editionsindicated were valid All standards are subject torevision and parties to agreements based on thisstandard are encouraged to investigate the possibilityof applying the most recent editions of the standardsindicated below

IS No

65241972

103341982

Title

Code of practice for installation andobservation of instruments fortemperature measurement insidedams resistance type thermometers

Code of practice for selection splicinginstallation and providing protection tothe open ends of cables used forconnecting resistance type measuringdevices in concrete and masonry dams

3 MEASUREMENTS OF JOINTMOVEMENTS OF SURFACE BYDETACHABLE GAUGES

31 Prhciple and Construction

Measurements of joint movements at surface or at thelocations accessible from galleries are made bydetachable gauges

311 Whittemore Type Gauge

The gauge is a self-contained instrument consistingessentially of two frame members bounded togetherby two elastic hinges for parallel frictionless motion

One 450 conical contact point is attached to eachmember For taking measurements the conical pointsare inserted into the inserts fixed in the drilled holesdefining a predetermined gauge length The essentialfeatures of the instrument are shown in Fig 1A

NOTE mdash The gauge is available in two gauge lengths (254 mmand 508 mm) and appropriate gauge suitable for the givensituation should be used

312 Inserts

Inserts may be made of mild steel or stainless steel butstainless steel inserts are recommended though they

may be expensive The mild steel inserts also last wellwithout rusting if due care is taken such as cleaningand greasing Inserts of nylon or any other suitablematerial may also be used The insert shall haveconical depressions at the centre for providing line ofcontact with the conical points and a typical insert isshown in Fig lB

3121 The inserts are placed in such a position as toindicate opening and closing movements of the jointand any sliding movement of the adjacent block

NOTE mdash Adequate protective covers over each installation of

inserts may be provided to guard against damage due to misuse

32 Number Location and Layout

The inserts should be installed on the surface at pointscorresponding to the locations of jointmeters inside thedam These should also be fixed inside galleries acrossjoints where these are accessible and at pointscorresponding to the jointmeter locations

321 Where surface cracks are present and areconsidered capable of influencing the structuralintegrity of the dam inserts shall also be placed across

such cracks for observation of crack behaviour underimposed loadings

322 The arrangement for fixing the inserts across thejoint is shown in Fig 1 C and 1 D The arrangementshown in Fig 1C is preferable as it gives the width ofopening simply by the difference in readings

1

832019 10434_1


IS 10434 (Part 1) 2003

33 Method of Installation

After the concrete is well set holes should be drilledcarefully at specified locations The holes shall becleaned of all loose material The insert shall then beplaced in the holes and aligned so as to be normal to

the surface of concrete in which it is being fixed Thespace around the insert shall be backfilled withexpansive mortar Suitable gauges shall be used inaligning the axes of inserts and in getting the gaugelength accurately

34 Observations

The inserts shall be well cleaned for taking thereadings so that the instrument pins are placed inexactly the same position The detachable gauge shallbe placed into the inserts and the readings on the dialgauge shall be observed In order to correct thedetachable gauges for the effect of temperaturevaria~ions readings of the gauge shall be taken on a

standard unstressed invar bar placed in the immediatevicinity of observation station

341 A proforma for the record of observations isgiven in Annex A

35 Analysis of Data

Analysis of observed data in case of the instrument notcompensated for temperature correction is made asunder

If readings at time tl are p and i for the concrete andinvar and for time t2 are p2 and iz the variation in thejoint opening is given by

lsquox=P-prsquo)(i2-irsquo)In the case of arrangement of inserts shown in

Fig 1 D measurements are made to determine thedistances Al B and C

1A Schematic View of Whittemore Type Gauge

1B Whittemore and Marion Gauge Inserts u7

1C Position of the Gauge Inserts 1D Position of the Gauge InsertsRelative to the Joints Relative to the Joints

AHdimensions in millimetres

FIG 1 INSTRUMENTS FORMEASUREMENTSOF JOINTMOVEMENTSATSURFACE

832019 10434_1


The horizontal distance xl at time [1 is obtained fromthe equation

x -

and vertical distance

A- B+Clsquoy =

2A

where at time tl

A I = measured distance between inserts on lineparallel to joint plane

B1= distance between upper two inserts across thejoint and

Cl = distance between lower-two inserts across thejoint

Similarly X2and y at time tz are calculated Betweentimes [land [~ the horizontal movement of the joint isM ndash xl and slide movement is y2 ndash yl

36 Source of Error

Seating the gauge is one of the chief sources of errorApplication of excessive longitudinal force should beavoided for seating the points in the inserts Othersources of error are the dial indicator and temperaturechanges

4 MEASUREMENT OF INTERNAL JOINTMOVEMENTS BY JOINTMETERS

1 Jointmeters

Two kinds of jointmeters for internal joint movementmeasurements are in use

a) Unbended resistance type andb) Vibrating wire type

411 Unbended Resistance Type Joint meter(Curlson Type)

IS 10434 (Part 1) 2003

41011 Construction and principle

The meter is in the form of a long brass cylinder witha flange at one end and a threaded hub on the other tofit a tapped socket In practice the socket is embeddedin the concrete of a leading monolith to form theanchorage for the meter on one side of the contractionjoint to be measured The flange on the meter isengaged and held by the embedding concrete in thefollowing monolith on the opposite side of the jointInside the brass case a steel framework supportsceramic pulleys and a long single loop of steel wirewhich is held in tension by small coil springs A greaterpart of the displacement which the meter undergoes inuse is taken up by the springs (see Fig 2) The brasstube is completely filled with a corrosion resistant oilA separate sealing chamber is provided for terminating

the three rubber covered conductor cables that connectthe jointmeter to the terminal boxes in the galleries

The instrument is designed to take advantage of twoelectrical properties of steel wire namely resistancevaries directly with temperature and resistance variesdirectly with tension When the ends of the jointmeterare pulled apart by opening of a joint the outer orexpansion loop elongates and increases in tension andconsequently in resistance as well At the same timethe inner or contraction loop decreases in resistance asit shortens The ratio of the resistance of the expansion

loop divided by the resistance of the contraction loopis used as a measure of joint opening Temperature ismeasured by taking the sum of the resistances ofexpansion and contraction coils

Since there may be considerable shearing ormovement in contraction joints as adjacent blocks coolat different rates the jointmeter is designed towithstand a shearing movement of 25 mm by reducingthe frame section at the ends to serve as elastic hingesA flexible bellows forms the central section of the

~---vrdquo---- ldquo-lsquo- - ndash 260-- mdash-

I +mdashmdash-255

II I flTAPE SLEEvING IN pLAcE 200ndash ----mdashmdashmdashmdashmdashmdashY lsquoldquoa

ORlBBER

57 rl~lik

------ ----END ANCHOR

-) VERED CABLEEND ANCHOR ~~REo

BRAIDED FABRIC SLEEVING lsquoMUSIC IPIANO) WIRE COIL

lsquo 3-CONOUCT

FLAT STEEL SpRING- snn FR N PI AI-c RUl-n

TOP VIEW (INTER-COIL NOT SHOWN) lsquoLWHITE

BLACKAll dimensions in millimetres

FIG 2 ELASTICWIRE STRAINMETER(CARLSONTYPE)

3

832019 10434_1


IS 10434 (Part 1) 2003

jointmeter to take the longitudinal and shear motionsof the case without undue straining

Measurements of resistance ratio and resistance aremade by connecting the three conductor cables to thebinding posts of a standard wheatstone bridge circuittest set in specified order in accordance with themanufacturerrsquos instructions

42 Number and Location

421 Number of jointmeters required to be providedin any given dam will depend upon the dimensionsblock layout provision of transverse and longitudinaljoints or transverse joints only configuration of thefoundation profile presence of specially treatedfoundation features under the dam and the extent towhich measurements of joint behaviour would proveadequate in representing the joint movements for theentire structure

422 In the case of dams built in V-shaped canyonjointmeters should be installed in at least three blocksnamely one central block representing deepest andmaximum section of the dam and a block each in theabutment portions representing blocks built on steeplysloping abutments In other cases they maybe installedone in the overflow section and one in thenon-overflow section or any other representativeblock as may be decided At a given elevation the

jointmeters in each of these blocks should be installedat the centre of the transverse dimensions of themonoliths in the blocks and should be spaced about15 m vertically in the height of the longitudinal andtransverse contraction joints as the grouting lifts(zoning of joints by provision of metal seal) are limitedto about 15 m in height This spacing may be modifiedin the top portion of the joint if joint height does notpermit of 15 m spacing for the entire height


431 Unbended Resistance TyeJoin[meter4311 Prior to the embedment of the jointmeterseach instrument should be thoroughly checked for themeter resistance as also for the lead resistance andthese should be entered in the proforma given inAnnex B The resistance ratios before splicing andafter splicing should also be recorded in the aboveproforma

4312 Jointmeters are supplied equipped with asocket which should be first embedded in the high

block The socket is further provided with a slottedplug in which two holes are drilled Procedure for theinstallation of jointmeter at a contraction joint consistsof the following steps

a) Nail the plug slotted side out to the woodenform at the jointmeter location This should be

b)c)

d)

e)

not more than 15 cm below the top of the liftfor easy installationScrew the socket cm the plugWhen socket installation is complete careshould be taken by the workmen not to hangthings on the socket or use it as a step in getting

out of the form or misuse it in any other wayas to cause misalignment As a precaution it isgood practice to run a few stay wires to theform to keep the socket in position and preventits misalignment The arrangement is shown inFig 3If it is considered that for the particular con-crete being used the force exerted by the nailsin the plug and ties is greater than the bondresistance on the socket to prevent pulling itout during form removal The anchor should

necessarily be provided in the case of masonrydamsIf the cable leads are to run in the block inwhich the socket is embedded recess shouldbe provided adjacent to the socket into whichnot less than 1 m of the cable should be coiled

4313 After the low block reaches the elevation inwhich the jointmeter itself is to be embedded thefollowing procedure shall be followed

a)

b)c)

d)

e)

f)

g)

After the form is removed remove the plug

fill greased cloth and screw in the hexagonalheaded plugComplete the lift at the jointmeter locationDig back at the location until the plug is un-covered leaving a small trench about 30 cm x30 cmBack out the plug and greased cloth and insertthe jointmeter screwing it uprigh~While fixing the moveable end of jointmeterallowance may be given for the meter torespond for expansion and contraction that is

in both the directionsTie the jointmeter cable lead out of the pour (ifcable is embedded in the high block) and back-fill with 75 mm maximum concrete hand pud-dling the concrete around the meten andNext day splice the meter cable and the cableextension may preferably be done at the timeof embedment to allow observation to bemade

44 Cables and Conduits

Guidelines regarding this aspect are provided inIS 10334

441 Additional length of cable should be attached tothe jointmeter by means of splicing done either withthe help of electric heat vulcanizer or by applying selfbonding tape

4

832019 10434_1


IS 10434 (Part 1) 2003

W-rdquo - K WfOODEN RECESS Box

lsquo~rdquo =CABLE WRAPPED INx~~ lsquo BURLAP ANO FRICTION

brdquo i -rdquoldquo amp TAPE FOR 45 cm AND

J l l-i rdquo brsquo rdquom( ----- COILED INSIOE RECESS1 1 BOX END SEALED

f

CABLE TIED UP OUT OFCONCRETE LIFT HEXA-

nGOtd HEAD PLUG

Step 1 installation in High Block

JlwOLE DUO AFTER COMPLETION

CABLE SPLICED OF LIFT JOINTMETER SCREWEDAFTER COMPLE- INTO SOCKETAND BACKFILLTION OF LIFT PLACED BY HANO ROUND JOlN7-

HHI METER BEFORE INITIAL SET

[it f h 1 a

Step 2 Preparation in Low Block Step 3 Jointmeter installation

FIG3 JOINTMETERINSTALLATION

442 Provision of 10 percent or 15 m whichever ismore over the estimated length of cable should beallowed for possible variation from selected route

443 Each meter should be identified by a letterprefix The normal prefix used forjointmeter is JM-1JM-2 etc After splicing a copper band with theinstrument identification number stamped or punchedon it is crimped to the cable about 1 m from the free

identification number marked on white tape should beplaced around the cable near the reading end

444 Provision contained in 43 of IS 6524 shall alsoapply to the jointmeter installations

45 Terminal Boards

Cables shall be terminated in suitable terminal boardsJointmeter numbers shall be indicated in the terminal

832019 10434_1


IS 10434 (Part 1) 2003

are to be placed in the inspection gallery they shall bemounted in a nitch preferably on the downstream sideThe terminal boards shall be moisture proof

46 Observations

461 Observations of the resistance ratio andresistance of the jointmeter should be made byconnecting the meter conductors (until these aresoldered to the terminal contacts on terminal boards ingalleries) to the binding posts of the standardwheatstone bridge in the order specified by themanufacturer Subsequent to their terminations on theterminal boards in galleries observations ofjointmetershould be made by connecting the jointmeterterminations to the test set binding posts through thetest lead equipped with a female plug in socket at oneend and the individual conductors equipped withmetallic terminations for connections to the test setbinding post at the other end Care should be taken toconnect the cable leads in the order specified by themanufacturer to ensure correct and reliablemeasurements

462 The following reading schedule shall beadopted

a)b)c)d)

e)f)

Immediately after embedmentEvery 3 h for the next 30 hEvery 12 h for the next four daysOnce a day till the concrete temperature risesto a maximum (usually about two weeks)Twice weekly for the next one monthWeekly for next two months or until the com-pletion of contraction joint grouting andFortnightly afterwards

463 Forms of Record

Observations shall be recorded directly on the printedfield reading form shown in Annex C These forms

should be got printed sufficiently in advance and keptready Duplicate copy of observations should beprepared simultaneously The original should be sentto design office or to the office entrusted with theanalysis of the data and the duplicate retained in thefield record office for future reference

47 Sources of Error

471 Unbended Resistance

The error may be due to

Type Jointmeter

a)

b)c)d)e)

472

Presence of moisture on the terminal panelsLoose circuit connections of the test setFaulty cable leadsPresence of deposit on terminal contacts andLow voltage of test set batteries

Vibrating Wire Type Jointmeter

Accuracy of the reading is not impaired due toresistance of cables However the test set haselectronic circuits and the components are affected bytemperature and shock

48 Collection of Complimentary Data

The following properties of the concrete or mortar inwhich jointmeters are embedded shall be defined

a) Coefficient of thermal expansion andb) Autogenous growth

49 Analysis of Data

491 Unbended Resistance Type Jointmeter

Analysis of the data should be done by transcribing theobserved data to the lsquoJoin tmeter Data Sheetrsquo shown in

Annex D and following the procedure given in 492492 The calibration data of the meter as supplied bythe manufacturer shall be filled in the space providedin the top portion of the form against particular itemsThe value of the corrected calibration constant maybecalculated by using the following equation

where

c=c =y=R=

~ _ y C$89)

calibration constant (corrected)

original calibration constant

resistance of a pair of conductor cables and

meter resistance at OdegC

6

832019 10434_1


mdash

I I I

N u 4 m mdash N mdash

De

Tm

R

v

wele

T

wele

Ina

p

-1

O

v

dsa

bw

in

s

fx

a

g

S

p

ae

jon

(P-P

Ina

i

S

iz

(

-i

O

v

le

ho

in

b

Mom

oon

(+V

ince

o

n

oon

(PP

-z-i

Rm

k

w

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX B

(Clause 43 11)

PROFORMA FOR RECORD OF OBSERVATIONS

UNBONDED RESISTANCE TYPE JOINT METERS

PRE-EMBEDMENT TESTS

Project

Instrument No Air temperature

Manufacturers No

Project No

Location Wet bulb temperature

1 Resistance Before Cables Splicing

i) White-black ii) White-green

iii) Green-black iv) Resistance one pair

2 Resistance Ratio (instrument only)

i) Direct ratio (white-green-black)

ii) Reverse ratio (black-green-white)

3 Individual Conductor Resistance

i) Length ii) Black

iii) Green iv) White

4 Resistance of Instrument after Cable Splicing



5 Resistance Ratio (instrument with cable)



Date of test

Date of embedment

NOTES

Name and signature of observer

8

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX C

(Clause 463)PROJECT

PROFORMA FOR RECORD OF OBSERVATIONS UNBONDED RESISTANCE TYPEJOINTMETERS FIELD READINGS AFTER EMBEDMENT

Instrument Previous Readings Date Time Resistance Ratio ObserverrsquosNo Signature

Date ResistanceRatio

JM 1

2

3

4

5

6

7

9

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX D

(Clause 49 1)

PROFORMA FOR RECORD OF OBSERVATIONS DATA SHEET FOR UNBONDEDRESISTANCE TYPE JOINTMETER

Project Sheet No

I Jointmeter No I Location

Calibration data Block Chainage andLocation

Meter resistance at (A)OC1)[B1)] ohm

Change in temperature per ohmchange in resistance [c1 )]0 c

I Ratio in closed position

Original calibration constant [D1)] mm per 001 ratio change

1 Calibration constant corrected for leads (D) mm per O01 ratio change

Resistance of leads at 0Cohm (pair)

Date Time TOMIResis-tanceohms

(1) (2) (3)

LeadResis-Udnceohms

(4)

Meter Temperature Resi- ChangeResis- ldquo C stance in Ratiotance Ratio ohms

(5) (6) (7) (8) 4=ndicated RemarksMove-mentmm

(9) (10)

Explanations forcolumnsincludinganalysisCol3

Col4

Col 5

~0 1 6

Col7Co ] 8

crsquool9

Total resistance of meter as measured in the field With a 4-conductor cable the cell resistance is measured directly and WIScolumn may be left blank

Resistance of the white and black conductors as measured directly during the splicing operations Asan attemative a reasonablyaccurate value may be determined by subtracting the total resis tance of the contraction and expansion coils measured in seriesf rom the sum of the res is tances of the contraction and expansion coils measured separately

Resistance of meter excluding cable leads It is obtained by subtracting CO14 from co] 3 with 4-conductor cable the meterresistance is measured directly

Temperature of the meter obtained by subtracting (B) from the cell resistanceinCO15 multiplying the difference by (C) andadding the product to (A)The resistance mtio of the meter as measured with the test set

Total change in resis tance ratio(CO17) from a selected initial vatue when the joint is known to be closed Thisis usuatly takenat about 24 h after the concretemasonry has been placed Proper algebraic sign should be shown

Multiply values in COI8 by the correlated calibration constant (D) The algebraic signs of co] 8 we carried over into CO19positi values indicating an opening of the joint with respect to the initial position and vice-versa

NOTE mdash Since the magnitude of the thermal length changes of the meter and concretemasonry due to changes in temperature aresignificantly small relative to the joint movements being measured and the range of the meter no temperature correction is madeTemperature data is of general interes t and provides a means for detecting faulty operation of the measuring point

1)CalibraliontiaV~ furnished by the manufacturer

10

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX E

(Foreword)

COMMITTEE COMPOSITION


OrganizationNational Hydro ElectricPowerCorporationLtd Faridabad

AIMILLtd New Deihi

Bhakra Beas Management Board Nangal Township Punjab

Central Board of Irrigation amp PowerNewDelhi

CentralBuildingResearchinstituteRoorkee

CentralWateramp Power Research Station Purre

Central Water Commission New Delhi

Consulting Engineering Services (1) Ltd New Delhi

Damodar Valley Corporation Ltd Dhanbad

lmcaldio-lltite Electronics Pvt Ltd Lucknow

lrrig~tion Department Government of Andhra Pradesh Hyderabad

Irrigation Department Government of Maharashtra Nashik

Irrigation Department Government of Punjab Chandigarh

Irrigation Research Institute Roorkee

Irrigation Department Government of Gujarat VadodaraKarnataka Power Corporation Ltd Karnalaka

Kemla State Electricity Board Kerala

Nat ional Hydroelectric Power Corporat ion Ltd Faridabad

Public Works Departmerr[ Government of Tamil Nadu Tamil Nadu

Sardar Sarovar Narmada Nigam Ltd Gandhinagar

University of Roorkee RoorkeeVasi Shums amp Co Private Ltd Mulmbai[31SDirectorate General

Representative(s)SHRIBRUENDRASHARMA (Chairrnun)

SHRt S P GUFTASHRtS C JAIN (Alternate)

DIRECTORDAMSAFETYEXECUTtVEENGINEER Alternate)

SHRI S P KAUSHISHSHRIT S MURTHY (Alternate)

SHR1 JN VAMHSHRIY PANDEY (Alternate)

sHRtMATl v M BENDRE

SHSUC K HAYATNAGARXAR (Alternate)DUWZTORINSTRUMENTATION

DIREOOR ERDD (NampW) (Alternate)SHRI S S NARANG

SHRIS R TOLEY (Alternate)CHtEF~GINEER (CIVIL)

SUPE RINTEN DINGNGtN EER(CIvrL) (Alternae)SHRIAMOD GUJRAL

SHRISABA QAMAR (Aftemate)DUHXOR

SUP ERINTE NDINGNGJ NEE RDAMS) (Alternate)CHIEFENGINE ERamp DIRSaOR

CHIEFENGINEERDIRE CTORDAM (Alrernate)

CHIE FENGINE ERDESIGN

SUP ERINTE NDING3+GINEE R (Alternate)DIRECTOR

CHIEFENGINEERCIVILDESIGNS)

PROJ ECTENGINE ERDESIGNS (Alternate)CHIEFENGINEERCtvlL)

EXECUTIVEENGI NEE R (Alternate)SHRtBALRAJJOSHI

SHRIN K JAIN (Altemae)SHRIM DURAIRAJ

JOINTCHIEFENGINEER Alternate)SUPERINTENDINGNGINEERNPHW CIRCLE)

DR NAYAN SHARMASHRIZ M KARACHIWALA

SHRtS S SETHIDirector amp Head (WRD)[RepresentingDirectorGeneral(Ex-oficio)]

Member SecretarySHRIMATI ROSY DHAWAN

Joint Director (WRD) BIS

11

832019 10434_1


Bureau of Indian Standards

BIS is a statutory institution established under the Bureau of Zndian Standards Act 1986 to promoteharmonious development of the activities of standardization marking and quality certification of goodsand attending to connected matters in the country

Copyright

BIS has the copyright of all its publications No part of these publications may be reproduced in any formwithout the prior permission in writing of BIS This does not preclude the free use in the course ofimplementing the standard of necessary details such as symbols and sizes type or grade designationsEnquiries relating to copyright be addressed to the Director (Publications) BIS

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments Standards are also reviewedperiodically a standard along with amendments is reaffirmed when such review indicates that no changes areneeded if the review indicates that changes are needed it is taken up for revision Users of Indian Standardsshould ascertain that they are in possession of the latest amendments or edition by referring to the latest issue oflsquoBIS Cataloguersquo and lsquoStandards Monthly Additionsrsquo

This Indian Standard has been developed from Doc No WRD 16 (320

Amendments Issued Since Publication

Amend No Date of Issue Text Affected

BUREAU OF INDIAN STANDARDS

Headquarters

Manak Bhavan 9 Bahadur Shah Zafar Marg New Delhi 110002 Telegrams ManaksansthaTelephones 23230131232333752323 9402 (Common to all offices)

Regional Offices Telephone

Central Manak Bhavan 9 Bahadur Shah Zafar Marg

23237617NEW DELHI 110002 23233841

Eastern 114 CIT Scheme VII M V 1 P Road Kankurgachi

2337849923378561KOLKATA 700054 2337862623379120

Northern SCO 335-336 Sector 34-A CHANDIGARH 160022

603843609285

Southern CIT Campus IV Cross Road CHENNAI 600113

22541216225414422254251922542315

Western Manakalaya E9 MIDC Marol Andheri (East)

2832929528327858

MUMBAI 400093 2832789128327892Branches AHMEDABAD BANGALORE BHOPAL BHUBANESHWAR COIMBATORE FARIDABAD

GHAZIABAD GUWAHATI HYDERABAD JAIPUR KANPUR LUCKNOW NAGPURNAL GARH PATNA PUNE RAJKOT THIRUVANANTHAPURAM VISAKHAPATNAM

Frsquomted at Prabhat Offset Press New Delhi-2

832019 10434_1



FOREWORD

This Indian Standard (Part 1) (First Revision) was adopted by the Bureau of Indian Standards after the draftfinalized by the Hydraulic Structures Instrumentation Sectional Committee had been approved by the WaterResources Division Council

To minimize cracking large straight gravity and arch gravity dams are made in blocks separated from eachother by transverse and longitudinal contraction joints To restore the dam to its monolithic state for integratedbehaviour contraction joints are grouted with cement grout Grouting of joints is done when the joints haveopened to maximum Measurement of joints movement during grouting operation will indicate how much groutshould be pumped into the joints

Measurements of joint movements subsequent to the completion of the grouting of contraction joints providesinformation regarding the behaviour of the grouted joints

Surface measurements and joint movements will be useful for watching shearing movement of joints Thesemeasurements can be done with mechanical strain gauges applied to gauge inserts However full reliance cannotbe placed on the surface measurements as all parts of joints do not open at the same time and not even the sameamount Internal joint movement may therefore also need to be measured Vibrating wires type jointmetersfor measurement of joint movement at the surface and in the interior of concrete and masonry dams are beingseparately covered

This standard has been published in two parts Part 2 of the standard covers foundation deformation measuringdevices

This standard was first published in 1982 This first revision is being taken up to incorporate the knowledgegained during the use of the standard In this revision reference clause has been added and some addition hasbeen made in the method of installation of resistance type jointmeter

The composition of the Committee responsible for the formulation of this standard is given at Annex E

832019 10434_1


IS 10434 (Part 1) 2003

Indian Standard




( First Revision)


2 REFERENCES


IS No

65241972

103341982

Title










312 Inserts











1

832019 10434_1


IS 10434 (Part 1) 2003




34 Observations




35 Analysis of Data










832019 10434_1



x -


A- B+Clsquoy =

2A

where at time tl





36 Source of Error



1 Jointmeters




IS 10434 (Part 1) 2003








I +mdashmdash-255


ORlBBER

57 rl~lik




lsquo 3-CONOUCT





3

832019 10434_1


IS 10434 (Part 1) 2003












b)c)

d)

e)





a)

b)c)

d)

e)

f)

g)







4

832019 10434_1


IS 10434 (Part 1) 2003





f


nGOtd HEAD PLUG





[it f h 1 a







45 Terminal Boards


832019 10434_1


IS 10434 (Part 1) 2003


46 Observations



a)b)c)d)

e)f)


463 Forms of Record



47 Sources of Error



Type Jointmeter

a)

b)c)d)e)

472







49 Analysis of Data




where

c=c =y=R=

~ _ y C$89)





6

832019 10434_1


mdash

I I I


De

Tm

R

v

wele

T

wele

Ina

p

-1

O

v

dsa

bw

in

s

fx

a

g

S

p

ae

jon

(P-P

Ina

i

S

iz

(

-i

O

v

le

ho

in

b

Mom

oon

(+V

ince

o

n

oon

(PP

-z-i

Rm

k

w

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX B

(Clause 43 11)



PRE-EMBEDMENT TESTS

Project


Manufacturers No

Project No









i) Length ii) Black








Date of test

Date of embedment

NOTES


8

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX C

(Clause 463)PROJECT




JM 1

2

3

4

5

6

7

9

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX D

(Clause 49 1)


Project Sheet No










(1) (2) (3)

LeadResis-Udnceohms

(4)



(9) (10)


Col4

Col 5

~0 1 6

Col7Co ] 8

crsquool9









10

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX E

(Foreword)




AIMILLtd New Deihi
























sHRtMATl v M BENDRE



















11

832019 10434_1




Copyright








Headquarters




23237617NEW DELHI 110002 23233841


2337849923378561KOLKATA 700054 2337862623379120


603843609285


22541216225414422254251922542315


2832929528327858




832019 10434_1


IS 10434 (Part 1) 2003

Indian Standard




( First Revision)


2 REFERENCES


IS No

65241972

103341982

Title










312 Inserts











1

832019 10434_1


IS 10434 (Part 1) 2003




34 Observations




35 Analysis of Data










832019 10434_1



x -


A- B+Clsquoy =

2A

where at time tl





36 Source of Error



1 Jointmeters




IS 10434 (Part 1) 2003








I +mdashmdash-255


ORlBBER

57 rl~lik




lsquo 3-CONOUCT





3

832019 10434_1


IS 10434 (Part 1) 2003












b)c)

d)

e)





a)

b)c)

d)

e)

f)

g)







4

832019 10434_1


IS 10434 (Part 1) 2003





f


nGOtd HEAD PLUG





[it f h 1 a







45 Terminal Boards


832019 10434_1


IS 10434 (Part 1) 2003


46 Observations



a)b)c)d)

e)f)


463 Forms of Record



47 Sources of Error



Type Jointmeter

a)

b)c)d)e)

472







49 Analysis of Data




where

c=c =y=R=

~ _ y C$89)





6

832019 10434_1


mdash

I I I


De

Tm

R

v

wele

T

wele

Ina

p

-1

O

v

dsa

bw

in

s

fx

a

g

S

p

ae

jon

(P-P

Ina

i

S

iz

(

-i

O

v

le

ho

in

b

Mom

oon

(+V

ince

o

n

oon

(PP

-z-i

Rm

k

w

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX B

(Clause 43 11)



PRE-EMBEDMENT TESTS

Project


Manufacturers No

Project No









i) Length ii) Black








Date of test

Date of embedment

NOTES


8

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX C

(Clause 463)PROJECT




JM 1

2

3

4

5

6

7

9

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX D

(Clause 49 1)


Project Sheet No










(1) (2) (3)

LeadResis-Udnceohms

(4)



(9) (10)


Col4

Col 5

~0 1 6

Col7Co ] 8

crsquool9









10

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX E

(Foreword)




AIMILLtd New Deihi
























sHRtMATl v M BENDRE



















11

832019 10434_1




Copyright








Headquarters




23237617NEW DELHI 110002 23233841


2337849923378561KOLKATA 700054 2337862623379120


603843609285


22541216225414422254251922542315


2832929528327858




832019 10434_1


IS 10434 (Part 1) 2003




34 Observations




35 Analysis of Data










832019 10434_1



x -


A- B+Clsquoy =

2A

where at time tl





36 Source of Error



1 Jointmeters




IS 10434 (Part 1) 2003








I +mdashmdash-255


ORlBBER

57 rl~lik




lsquo 3-CONOUCT





3

832019 10434_1


IS 10434 (Part 1) 2003












b)c)

d)

e)





a)

b)c)

d)

e)

f)

g)







4

832019 10434_1


IS 10434 (Part 1) 2003





f


nGOtd HEAD PLUG





[it f h 1 a







45 Terminal Boards


832019 10434_1


IS 10434 (Part 1) 2003


46 Observations



a)b)c)d)

e)f)


463 Forms of Record



47 Sources of Error



Type Jointmeter

a)

b)c)d)e)

472







49 Analysis of Data




where

c=c =y=R=

~ _ y C$89)





6

832019 10434_1


mdash

I I I


De

Tm

R

v

wele

T

wele

Ina

p

-1

O

v

dsa

bw

in

s

fx

a

g

S

p

ae

jon

(P-P

Ina

i

S

iz

(

-i

O

v

le

ho

in

b

Mom

oon

(+V

ince

o

n

oon

(PP

-z-i

Rm

k

w

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX B

(Clause 43 11)



PRE-EMBEDMENT TESTS

Project


Manufacturers No

Project No









i) Length ii) Black








Date of test

Date of embedment

NOTES


8

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX C

(Clause 463)PROJECT




JM 1

2

3

4

5

6

7

9

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX D

(Clause 49 1)


Project Sheet No










(1) (2) (3)

LeadResis-Udnceohms

(4)



(9) (10)


Col4

Col 5

~0 1 6

Col7Co ] 8

crsquool9









10

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX E

(Foreword)




AIMILLtd New Deihi
























sHRtMATl v M BENDRE



















11

832019 10434_1




Copyright








Headquarters




23237617NEW DELHI 110002 23233841


2337849923378561KOLKATA 700054 2337862623379120


603843609285


22541216225414422254251922542315


2832929528327858




832019 10434_1



x -


A- B+Clsquoy =

2A

where at time tl





36 Source of Error



1 Jointmeters




IS 10434 (Part 1) 2003








I +mdashmdash-255


ORlBBER

57 rl~lik




lsquo 3-CONOUCT





3

832019 10434_1


IS 10434 (Part 1) 2003












b)c)

d)

e)





a)

b)c)

d)

e)

f)

g)







4

832019 10434_1


IS 10434 (Part 1) 2003





f


nGOtd HEAD PLUG





[it f h 1 a







45 Terminal Boards


832019 10434_1


IS 10434 (Part 1) 2003


46 Observations



a)b)c)d)

e)f)


463 Forms of Record



47 Sources of Error



Type Jointmeter

a)

b)c)d)e)

472







49 Analysis of Data




where

c=c =y=R=

~ _ y C$89)





6

832019 10434_1


mdash

I I I


De

Tm

R

v

wele

T

wele

Ina

p

-1

O

v

dsa

bw

in

s

fx

a

g

S

p

ae

jon

(P-P

Ina

i

S

iz

(

-i

O

v

le

ho

in

b

Mom

oon

(+V

ince

o

n

oon

(PP

-z-i

Rm

k

w

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX B

(Clause 43 11)



PRE-EMBEDMENT TESTS

Project


Manufacturers No

Project No









i) Length ii) Black








Date of test

Date of embedment

NOTES


8

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX C

(Clause 463)PROJECT




JM 1

2

3

4

5

6

7

9

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX D

(Clause 49 1)


Project Sheet No










(1) (2) (3)

LeadResis-Udnceohms

(4)



(9) (10)


Col4

Col 5

~0 1 6

Col7Co ] 8

crsquool9









10

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX E

(Foreword)




AIMILLtd New Deihi
























sHRtMATl v M BENDRE



















11

832019 10434_1




Copyright








Headquarters




23237617NEW DELHI 110002 23233841


2337849923378561KOLKATA 700054 2337862623379120


603843609285


22541216225414422254251922542315


2832929528327858




832019 10434_1


IS 10434 (Part 1) 2003












b)c)

d)

e)





a)

b)c)

d)

e)

f)

g)







4

832019 10434_1


IS 10434 (Part 1) 2003





f


nGOtd HEAD PLUG





[it f h 1 a







45 Terminal Boards


832019 10434_1


IS 10434 (Part 1) 2003


46 Observations



a)b)c)d)

e)f)


463 Forms of Record



47 Sources of Error



Type Jointmeter

a)

b)c)d)e)

472







49 Analysis of Data




where

c=c =y=R=

~ _ y C$89)





6

832019 10434_1


mdash

I I I


De

Tm

R

v

wele

T

wele

Ina

p

-1

O

v

dsa

bw

in

s

fx

a

g

S

p

ae

jon

(P-P

Ina

i

S

iz

(

-i

O

v

le

ho

in

b

Mom

oon

(+V

ince

o

n

oon

(PP

-z-i

Rm

k

w

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX B

(Clause 43 11)



PRE-EMBEDMENT TESTS

Project


Manufacturers No

Project No









i) Length ii) Black








Date of test

Date of embedment

NOTES


8

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX C

(Clause 463)PROJECT




JM 1

2

3

4

5

6

7

9

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX D

(Clause 49 1)


Project Sheet No










(1) (2) (3)

LeadResis-Udnceohms

(4)



(9) (10)


Col4

Col 5

~0 1 6

Col7Co ] 8

crsquool9









10

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX E

(Foreword)




AIMILLtd New Deihi
























sHRtMATl v M BENDRE



















11

832019 10434_1




Copyright








Headquarters




23237617NEW DELHI 110002 23233841


2337849923378561KOLKATA 700054 2337862623379120


603843609285


22541216225414422254251922542315


2832929528327858




832019 10434_1


IS 10434 (Part 1) 2003





f


nGOtd HEAD PLUG





[it f h 1 a







45 Terminal Boards


832019 10434_1


IS 10434 (Part 1) 2003


46 Observations



a)b)c)d)

e)f)


463 Forms of Record



47 Sources of Error



Type Jointmeter

a)

b)c)d)e)

472







49 Analysis of Data




where

c=c =y=R=

~ _ y C$89)





6

832019 10434_1


mdash

I I I


De

Tm

R

v

wele

T

wele

Ina

p

-1

O

v

dsa

bw

in

s

fx

a

g

S

p

ae

jon

(P-P

Ina

i

S

iz

(

-i

O

v

le

ho

in

b

Mom

oon

(+V

ince

o

n

oon

(PP

-z-i

Rm

k

w

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX B

(Clause 43 11)



PRE-EMBEDMENT TESTS

Project


Manufacturers No

Project No









i) Length ii) Black








Date of test

Date of embedment

NOTES


8

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX C

(Clause 463)PROJECT




JM 1

2

3

4

5

6

7

9

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX D

(Clause 49 1)


Project Sheet No










(1) (2) (3)

LeadResis-Udnceohms

(4)



(9) (10)


Col4

Col 5

~0 1 6

Col7Co ] 8

crsquool9









10

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX E

(Foreword)




AIMILLtd New Deihi
























sHRtMATl v M BENDRE



















11

832019 10434_1




Copyright








Headquarters




23237617NEW DELHI 110002 23233841


2337849923378561KOLKATA 700054 2337862623379120


603843609285


22541216225414422254251922542315


2832929528327858




832019 10434_1


IS 10434 (Part 1) 2003


46 Observations



a)b)c)d)

e)f)


463 Forms of Record



47 Sources of Error



Type Jointmeter

a)

b)c)d)e)

472







49 Analysis of Data




where

c=c =y=R=

~ _ y C$89)





6

832019 10434_1


mdash

I I I


De

Tm

R

v

wele

T

wele

Ina

p

-1

O

v

dsa

bw

in

s

fx

a

g

S

p

ae

jon

(P-P

Ina

i

S

iz

(

-i

O

v

le

ho

in

b

Mom

oon

(+V

ince

o

n

oon

(PP

-z-i

Rm

k

w

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX B

(Clause 43 11)



PRE-EMBEDMENT TESTS

Project


Manufacturers No

Project No









i) Length ii) Black








Date of test

Date of embedment

NOTES


8

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX C

(Clause 463)PROJECT




JM 1

2

3

4

5

6

7

9

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX D

(Clause 49 1)


Project Sheet No










(1) (2) (3)

LeadResis-Udnceohms

(4)



(9) (10)


Col4

Col 5

~0 1 6

Col7Co ] 8

crsquool9









10

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX E

(Foreword)




AIMILLtd New Deihi
























sHRtMATl v M BENDRE



















11

832019 10434_1




Copyright








Headquarters




23237617NEW DELHI 110002 23233841


2337849923378561KOLKATA 700054 2337862623379120


603843609285


22541216225414422254251922542315


2832929528327858




832019 10434_1


mdash

I I I


De

Tm

R

v

wele

T

wele

Ina

p

-1

O

v

dsa

bw

in

s

fx

a

g

S

p

ae

jon

(P-P

Ina

i

S

iz

(

-i

O

v

le

ho

in

b

Mom

oon

(+V

ince

o

n

oon

(PP

-z-i

Rm

k

w

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX B

(Clause 43 11)



PRE-EMBEDMENT TESTS

Project


Manufacturers No

Project No









i) Length ii) Black








Date of test

Date of embedment

NOTES


8

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX C

(Clause 463)PROJECT




JM 1

2

3

4

5

6

7

9

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX D

(Clause 49 1)


Project Sheet No










(1) (2) (3)

LeadResis-Udnceohms

(4)



(9) (10)


Col4

Col 5

~0 1 6

Col7Co ] 8

crsquool9









10

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX E

(Foreword)




AIMILLtd New Deihi
























sHRtMATl v M BENDRE



















11

832019 10434_1




Copyright








Headquarters




23237617NEW DELHI 110002 23233841


2337849923378561KOLKATA 700054 2337862623379120


603843609285


22541216225414422254251922542315


2832929528327858




832019 10434_1


IS 10434 (Part 1) 2003

ANNEX B

(Clause 43 11)



PRE-EMBEDMENT TESTS

Project


Manufacturers No

Project No









i) Length ii) Black








Date of test

Date of embedment

NOTES


8

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX C

(Clause 463)PROJECT




JM 1

2

3

4

5

6

7

9

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX D

(Clause 49 1)


Project Sheet No










(1) (2) (3)

LeadResis-Udnceohms

(4)



(9) (10)


Col4

Col 5

~0 1 6

Col7Co ] 8

crsquool9









10

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX E

(Foreword)




AIMILLtd New Deihi
























sHRtMATl v M BENDRE



















11

832019 10434_1




Copyright








Headquarters




23237617NEW DELHI 110002 23233841


2337849923378561KOLKATA 700054 2337862623379120


603843609285


22541216225414422254251922542315


2832929528327858




832019 10434_1


IS 10434 (Part 1) 2003

ANNEX C

(Clause 463)PROJECT




JM 1

2

3

4

5

6

7

9

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX D

(Clause 49 1)


Project Sheet No










(1) (2) (3)

LeadResis-Udnceohms

(4)



(9) (10)


Col4

Col 5

~0 1 6

Col7Co ] 8

crsquool9









10

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX E

(Foreword)




AIMILLtd New Deihi
























sHRtMATl v M BENDRE



















11

832019 10434_1




Copyright








Headquarters




23237617NEW DELHI 110002 23233841


2337849923378561KOLKATA 700054 2337862623379120


603843609285


22541216225414422254251922542315


2832929528327858




832019 10434_1


IS 10434 (Part 1) 2003

ANNEX D

(Clause 49 1)


Project Sheet No










(1) (2) (3)

LeadResis-Udnceohms

(4)



(9) (10)


Col4

Col 5

~0 1 6

Col7Co ] 8

crsquool9









10

832019 10434_1


IS 10434 (Part 1) 2003

ANNEX E

(Foreword)




AIMILLtd New Deihi
























sHRtMATl v M BENDRE



















11

832019 10434_1




Copyright








Headquarters




23237617NEW DELHI 110002 23233841


2337849923378561KOLKATA 700054 2337862623379120


603843609285


22541216225414422254251922542315


2832929528327858




832019 10434_1


IS 10434 (Part 1) 2003

ANNEX E

(Foreword)




AIMILLtd New Deihi
























sHRtMATl v M BENDRE



















11

832019 10434_1




Copyright








Headquarters




23237617NEW DELHI 110002 23233841


2337849923378561KOLKATA 700054 2337862623379120


603843609285


22541216225414422254251922542315


2832929528327858




832019 10434_1




Copyright








Headquarters




23237617NEW DELHI 110002 23233841


2337849923378561KOLKATA 700054 2337862623379120


603843609285


22541216225414422254251922542315


2832929528327858




Date post:	06-Apr-2018
Category:	Documents
Upload:	perumalbalji
View:	216 times
Download:	0 times

10434_1

Documents