powergrid measurement

FOR INTERNAL CIRCULATION ONLY

user’s manual of

Construction (part three)

General Support Volume-1

Measurement Book (Procedures & Guidelines)

Construction Management Power Grid Corporation of India Limited

(A Government of India Enterprise)

DOCUMENT CODE NO. : MR / CM / MB / 03-01 Nov. 1997

CONTENTS

SECTION – ONE

PROCEDURES FOR RECORDING PAGE 1.1 INTRODUCTION 1.2 MEASUREMENT BOOK 1.3 ABSTRACT BOOK 1.4 FORMAT OF MB/AB 1.4.1 SL. NO. OF MB/AB 1.4.2 SIZE OF MB/AB 1.5 RUNNING ACCOUNT BILL (RA BILL) 1.6 JOINT MEASUREMENT CERTIFICATE (JMC) 1.7 MATERIAL RECONCILIATION STATEMENT (MRS) 1.7.1 OWNER SUPPLIED MATERIALS. 1.7.2 CONTRACTOR SUPPLIED MATERIALS. 1.7.3 CEMENT & STEEL 1.8 CUSTODY OF MB/AB 1.8.1 ISSUE OF MB/AB 1.8.2 STOCK OF MB/AB 1.8.3 LOSS OF AB/MB 1.8.4 HANDING/TAKING OVER OF MB/AB 1.9 RECORDING OF MEASUREMENTS: 1.9.1 RECORDING IN MB 1.9.2 RECORDING IN AB 1.9.3 RELEASE OF PAYMENT 1.10 RECORDING AND TEST CHECKING

1.10.1 RESPONSIBILITIES FOR RECORDING & CHECKING MEASUREMENTS 1.10.2 TEST CHECKS 1.10.3 IMPORTANT ITEMS FOR MEASUREMENT

(A) HIDDEN & CONCEALED ITEMS

(B) COSTLY/SPECIAL ITEMS

(C) RECORDING OF MEASUREMENTS IN RESPECT OF LENGTH OF

PILE:

BORED CAST-IN-SITU PILES:

DRIVEN CAST - IN - SITU PILES:

DRIVEN PRE-CAST

(D) MEASUREMENT OF STEEL BARS:

(E) MEASUREMENTS OF EARTH MAT & FIRE FIGHTING PIPES

(F) ANTIWEED TREATMENT IN SUBSTATION

SECTION -TWO

GUIDELINES 2.1 GUIDELINES FOR MAINTENANCE OF MB/AB 2.2. GUIDELINES FOR FILLING UP OF MATERIAL RECONCILIATION STATEMENT (MRS)

SECTION – THREE

FORMATS & PROFORMAS

ANNEXURE – I FORMAT OF MEASUREMENT BOOK

ANNEXURE – II FORMAT OF ABSTRACT BOOK

ANNEXURE – III FORMAT OF RUNNING/FINAL ACCOUNT BILL

ANNEXURE- IV FORMAT OF JOINT MEASUREMENT CERTIFICATE

ANNEXURE – VA PROFORMA OF MATERIAL RECONC. STATEMENT (RECT.)

ANNEXURE – VB PROFORMA OF MATERIAL RECONC. STATEMENT

(CONSUMPTION)

ANNEXURE –VI FORMAT OF STOCK REGISTER FOR

MEASUREMENT/ABSTRACT BOOKS

ANNEXURE –VII FORMAT OF CERTIFICATE FOR FINAL BILLS

ANNEXURE – VIII FORMAT OF BILL MOVEMENT SHEET

ANNEXURE – IX LOCATION CODES

ANNEXURE – X FORMAT OF INDEX FOR TEST CHECKING

ANNEXURE – XI FORMAT OF LEVEL BOOK

SECTION-FOUR

CHECKLISTS & FLOW DIAGRAM

ANNEXURE – XII FORMAT OF CHECK LIST FOR RUNNING ACCOUNT BILLS

ANNEXURE – XIIIA FORMAT OF CHECK LIST OF FINAL BILL FOR

EARTH WORK

ANNEXURE – XIIIB FORMAT OF CHECK LIST OF FINAL BILL (GENERAL)

ANNEXURE-XIV FLOW DIAGRAM OF PAYMENT PROCEDURES

ANNEXURE – XV CALCULATION OF EARTH VOLUME FROM SPOT LEVELS

ACRONYMS USED

AB Abstract Book CC Corporate Centre CFM Chief Finance Manager CI Pipes Cast Iron Pipes CHP Consumer Hold Point C&M Contracts & Materials CPM Chief Personnel Manager CS Contract Services Deptt. Department DGM Deputy General Manager DHQ Divisional Head Quarter DOP Delegation of Powers E-I-C Engineer-In-Charge Engg. Engineering F&A Finance & Accounts FR Fissured Rock GHQ Group Head Quarter GR Goods Receipt HOD Head of Department HO/TO Handing Over/Taking Over HQ Head Quarter HR Hard Rock JMC Joint Measurement Certificate LOA Letter of Award LR Lorry Receipt MAB Master Abstract Book MB Measurement Book MICC Material Inspection Clearance Certificate MM Materials Management MRHOV Material Receipt & Handing Over Voucher MRN Material Return Note MRS Material Reconciliation Statement MTN Material Transfer Note MTV Material Transfer Note NIT Notice Inviting Tender No. Number NOC No Objection Certificate O&M Operation & Maintenance OS Operation Services P&C Planning & Co-ordination PV Price Variation

Section-One

Procedures for Recording

------------------------------------------------------------------------------ SECTION

ONE ------------------------------------------------------------------------------

PROCEDURES FOR RECORDING

Back to contents page

1.1 Introduction Back to contents page

Measurement methods need to be evolved, so that a uniform

and standard procedures for recording various measurements and maintaining Measurement Books is followed throughout the Corporation in respect of erection contracts, supply-cum-erection contracts, civil contracts, maintenance contracts & horticulture contracts. In line with the above, procedures and guidelines for Measurement Books alongwith appropriate formats have been prepared.

1.2 Measurement Book

Back to contents page Various works at the construction sites being executed as

works contract i.e. construction of Transmission Lines, Sub-Stations erection works, Civil Construction works, all maintenance works and other miscellaneous works shall be duly recorded in a book known as Measurement Book (MB). Measurements for the works actually executed shall be recorded in the MBs in a systematic & chronological orderlike security contracts etc. which are recurring in nature shall also be recorded.

1.3 Abstract Book

Back to contents page An abstract of Measured quantities and payments shall be

entered in another Book known as Abstract Book (AB). The payment shall be released on the basis of abstract recorded in AB supported with respective measurements recorded in MB.

The following payments pertaining to each contract shall be

entered in the Abstract Books for verification and releasing the payments for erection/construction/mtc. works to the concerned agency:-

a) Mobilisation/materials/machinery advance.

b) RA Bills and final bills.

c) Any other advances.

d) Reimbursement of Insurance premiums.

e) PV Bills f) Approved extra items/substituted items/claims. g) Release of S.D. and other retention amounts etc. MBs/ABs are considered to be the most important documents.

MBs/ABs shall be standard in design and printing throughout the Corporation. As per the approved design & Size, printing of the MBs/ABs shall be carried out by each RHQ. At Corporate Centre printing work shall be taken up by Corporate Material Deptt.

1.4 Format of MB/AB

Back to contents page 1.4.1 Sl. No. of MB/AB

Back to contents page Each of the MB/AB shall be machine numbered serially. MB/AB

shall have eight digit numbers as X/YY/MB/ZZZ AB 1 23 45 678 Ist digit 'X' in the code specifies the Corporate Centre,

National Load Despatch and Region etc. Remaining two digits 'YY' denote location code viz. GHQ/Transmission Line office/Sub-station/Site offices. For Corporate Centre 2nd and 3rd digits shall be the abbreviated name of the deptt. as shown in the Annexure-IX. This shall be followed by word MB/AB as the case be (4th and 5th digit). Again it shall be followed by three digit Sl. No. (at 6th, 7th and 8th digit) of MB/AB as shown in illustration in Annexure-IX, being the Sl. No. of MB/AB.

Above codification has been done in line with codification

done for Uniform Material Codification System as circulated by Corporate Material Deptt. to keep uniformity. Any addition/deletion in the above codification shall only be done by the Corporate Centre.

1.4.2 Size of MB/AB

Back to contents page The size of the Measurement Book shall be of standard A-4

size. Each Measurement Book shall contain 50 pages in

triplicate as per the standard format enclosed at Annexure-I. The first page shall be of white colour with perforations, the second page shall be of yellow colour with perforations and the third page shall be of light green colour without perforations. Similarly, ABSTRACT BOOKS are to be printed separately. Abstract Book shall also be of standard A-4 size. A standard format for Abstract Book is enclosed at Annexure-II. The abstract Book shall contain 100 pages. On the cover of the books, the following shall be printed:

MEASUREMENT BOOKS (MB)/ ABSTRACT BOOKS (AB) i) MB/AB No. on top right corner. ii) Name of Region ..................... iii) Name of Divn. ..................... iv) Name of Group ..................... v) LOA No. & Date ..................... vi) Name of work ..................... 1.5 Running Account Bill (RA Bill)

Back to contents page Abstract of the measured quantities and payments as

prepared and entered in Abstract Book (vide 1.3 of Page 1) shall also be prepared on loose sheets known as Running Account Bill.

Besides abstract of measured quantities and payments, RA

Bill forms shall also contain the Certificates to be given by Engineer, acceptance of the payment by the contractor and approval by the competent authority. RA Bill form shall also contain the details of Pass Order of Accounts Deptt. i.e. payments, adjustments, deductions and recoveries, net payment made etc. in the bill.

RA bill shall be prepared in 3 copies. Two copies shall be

forwarded to concerned Finance Deptt. and third copy shall be retained as office copy by the official recording the Measurement. Along with these two copies of RA bill, two copies of Measurement Book and Abstract Book shall be forwarded for releasing the payment.

After release of the payment Finance Deptt. shall send back

the following documents to Group Head.

i) Abstract book with pass order. ii) 2nd Copy of the RA bill alongwith pass order. This

copy shall be kept by the recording official in the safe custody and filed in chronological order.

iii) 2nd copy of MB. The corrections, if any made by Finance Deptt. should be incorporated in copy of MB retained with the official recording the MB. The standard bill form for RA/Final Bill is enclosed at Annexure-III.

1.6 Joint Measurement Certificate (JMC)

Back to contents page Joint Measurement is a record of measurements taken jointly

by the representatives of Power Grid and of the executing agency. Joint Measurement certificate shall be of A4 size and shall be prepared in duplicate. Original copy of the JMC shall be white in colour and shall be perforated. Second copy of the JMC, without perforation shall be light green in colour and shall be prepared for the hidden/concealed items and shall be prepared immediately on starting/completion of an activity. A format of the JMC is enclosed as Annexure-IV.

1.7 Material Reconciliation Statement (MRS)

Back to contents page 1.7.1 Owner Supplied Materials (OSM)

Back to contents page In order to ensure timely & proper reconciliation of Owner

Supplied Materials on construction sites of T/L, S/S and Civil works(including steel & cement), a material reconciliation statement (MRS) shall be submitted alongwith every third RA/Final bill.

This material reconciliation statement both for receipt and

consumption of Owner Supplied Materials is to be enclosed with every IIIrd RA/final bill and same shall be recorded in corresponding Measurement Books.

Proformas of Material Reconciliation Statement both for

materials received and consumed during the period are enclosed as Annexure-Va and Vb. Guidelines for filling up these proformas are also being enclosed.

1.7.2 Contractor Supplied Materials.

Back to contents page For reconciliation of Contractor Supplied Materials at

construction sites of T/L, S/S and Civil works, a material reconciliation statement (MRS) shall be submitted alongwith every third RA/Final bill.

The above MRS Proformas (both for OSM and Contractor supplied material) shall be submitted by erection contractor and duly signed by concerned site Engineer.

1.7.3.1 Cement & Steel


In case of consumption of steel/cement both for Owner's Supplied as well as Contractor's Supplied a statement shall be given in each of the RA Bills, shown hereunder

+-----------------------------------------------------+ ¦ Theoretical Actual ¦ ¦ Consumption Consumption ¦ +-----------------------------------------------------¦ ¦ Cement ¦ ¦ ¦ ¦ Steel ¦ +-----------------------------------------------------+

1.8 Custody of MB/AB Back to contents page

1.8.1 Issue of MB/AB

Back to contents page Each group shall get the MB's issued from RHQ and the stock

of blank Measurement Books shall be maintained by P & C deptt. of respective deptt./ Groups. The measurement books shall be issued to the concerned officials on specific indents. Each MB/AB, in addition to the standard format shall also contain pages in the beginning as per proforma enclosed at Section-Two indicating guide lines for recording measurements and an index. The issuing authority shall record on the inside cover of MB

i) MB No. ii) Name of the work ..................... iii) LOA No. & Date ..................... iv) Issued To ..................... v) Date of Issue ..................... vi) Certificate that the book has been examined by me and

contains......pages duly numbered.

Issuing official Receiving Official Signature ................. Signature Name ................. Name………………… Designation ................. Designation…………. Date ................. Date……………………………

1.8.2 Stock of MB/AB


The stock of blank measurement books in the custody of P&C deptt. at Regional/Divisional/group offices shall be verified atleast once a year by the respective Head/Incharge or his authorised representative not below the rank of E-4 and a certificate in token of verification shall be recorded in the stock register of MB/AB. The standard format for 'Stock Register for Measurement/ Abstract Books' is enclosed herewith at Annexure-VI.

The executive receiving the measurement books shall count

the pages of the MB at the time of receipt and record a certificate indicating the number of pages contained in the MB/AB. On closing of the contract entries shall be made in MB issuing register maintained in P&C deptt. Thereafter these shall be returned to F&A deptt. and these are to be preserved for a period of 10 years after closing of contract. In case of arbitration and court cases pertaining to certain contracts, the concerned MBs/ABs should be retained till such time the arbitration/court cases are finalised even though the 10 years period had exceeded.

1.8.3 Loss of AB/MB


When an MB/AB is lost by an official, a report indicating the circumstances under which it was lost should immediately be reported to the Incharge of the work with a copy to F&A deptt. at regional/divisional/group offices for taking further action as considered necessary. Divisional/Regional head should constitute an enquiry committee for ascertaining the circumstances and facts under which MB/AB was lost. Penal action shall be taken as per findings of Enquiry Committee against defaulting/erring officials. Also the Site Engineer/Group Head shall ensure that the MB/AB lost be made up with the corrected second copy of measurement Book/RA bill.

1.8.4 Handing/Taking over of MB/AB Back to contents page

MB/AB shall be properly handedover/taken over on

transfer/long leave of the official to whom it is issued. Proper HO/TO certificate shall be furnished on the inside cover of the MB/AB in continuation to earlier issue certificate. The certificate shall be properly countersigned by the Group Head/HOD issuing authority with entry in MB/AB stock register.

1.9 Recording of measurements:

Back to contents page The measurements shall be recorded neatly, clearly and

accurately in the MB. Ballpen/Inkpen should be used for

making entries in the MB/AB. Overwriting and erasing shall not be done. In case, wrong measurements were recorded inadvertently, these shall be scored out under the full signatures of the person recording the measurements and fresh entries shall be made. Entries shall be made continuously and no blank page shall be left. Any blank pages left inadvertently shall be cancelled by diagonal lines in red under dated signatures.

No page should be torn out under any circumstances. 1.9.1 Recording in MB

Back to contents page While recording detailed measurement in MB, following

instructions shall be carefully observed:- Measurements shall be recorded in Measurement Books.

Measurements can be recorded in any number of MB's depending upon classification of various works under one package, location of the works, site conditions etc. However, only one Abstract Book shall be issued and made against one contract. All advances, payments & adjustments pertaining to one contract shall be entered in the A.B. However, for transmission lines works where works under the same contract are divided amongst two or more officials who are stationed distant apart, Individual AB shall be maintained by the concerned officials. Officials stationed near to the GHQ or as decided by the Competent Authority shall be issued AB known as Master Abstract Book (MAB). Other officials shall be issued AB as follower Abstract Book & AB. In follower AB abstract of the since previous quantities & payments shall only be entered & shall be transferred in Master AB with suitable cross entries and complete details of up to date quantities & payments. Thus, bill for the purpose of release of payments with the upto date quantities and payments (inclusive those for sections covered by FAB) shall be prepared and entered in MAB.

All advances, payments, release of security deposits etc.

shall be entered in MAB for the purpose of release of payments by A/C Deptt.

The entries at the time of first measurement for each of

the works in MB shall be as under. a) RA Bill No. ..................dtd. .......... b) Name of the work : c) Location of the work : d) Agency by which executed : Contractor/departmental

e) LOA No. and date : f) Name of the contractor : g) Date of commencement of work : h) Schedule / anticipated date of completion : i) Period of Measurement : From.........To....... j) Date of Recording of Measurement in MB. At the time of making subsequent measurements of such

works, measurements of subsequent RA Bill may be recorded by commencing with the following entries:-

a) RA Bill No………………………….dt. b) Period of Measurement : From..........To c) Date of Recording of Measurement in MB d) Schedule/anticipated date of completion. (In

case of final bill, the actual date of completion should be recorded)

e) No. & date of previous RA Bill. At the end of measurements, the Jr. Engineer/official re-

cording measurements shall put his/her signatures in full with name and designation.

Measurements shall be recorded in the MB on

monthly/fortnightly basis. In case of concealed/hidden items measurements shall be recorded immediately on starting/completion of the activity. In case the recording of measurements directly in MB immediately on completion of the activity is not possible the measurements can be recorded in the JMC before reproducing the same in the MB. However for T/L concealed/hidden works, measurements shall be recorded on the basis of JMC only.

On completion of the measurements, the Executive/Jr.

Engineer recording the measurements shall give a certificate as "Measurements taken by me". The Signatures of the contractor/or his authorised agent shall also be obtained on the measurement Books in token of the proof that the measurement recorded in the measurement Book have been accepted. The contractor/or his authorised agent shall be asked to record a certificate "Measurement recorded at

Page No... to.. are accepted". In cases, where contractor or his authorised representative does not agree to sign the measurements or refuses to accept the measurements as recorded in the MB, Engineer-in-Charge or the person deputed by him for the purpose shall give a reasonable notice to the Contractor. If the Contractor fails to attend or send an authorised representative for measurement after such a notice or fails to countersign or to record his objection within a week from the date of measurement, then in any such event measurements taken by the Engineer-in-Charge or by the person deputed by him shall be taken to be correct measurements of the work. If the Contractor objects to any of the measurements recorded on behalf of the Corporation a note to that effect shall be made in the Measurement Book against the item objected to and such note shall be signed and dated by both parties engaged in taking the measurement. The decision of the Accepting Authority on any such dispute or difference or interpretation shall be final and binding on both the parties and shall be beyond the scope of the settlement of disputes by Arbitration in respect of all contract items, substituted items, extra items and deviations.

The Contractor shall, without extra charge, provide

necessary assistance, labour and other things necessary for measurements.

1.9.2 Recording in AB

Back to contents page After recording measurements and obtaining signature of the

contractor or his authorised agent, an abstract of the work measured, shall be prepared in the Abstract Book. At the time of entering the abstract of first R.A. Bill the following entries are to be made:-

1) RA Bill No.......... Date......... 2) Name of work : 3) Name of the contractor : 4) LOA No. and date : 5) Date of commencement of work : 6) Sch. date/Ant. date of completion :

7) Period of measurements : From…………To…………….

For subsequent R.A Bills of same work the following entries

are to be made:-

1) RA Bill No.......... Dtd.......... 2) Period of measurements : From…………To…………… 3) Reference to previous RA Bill

Indicating page nos. : 4) Sch./Ant. date of completion : The abstract shall also indicate the payments if any made

upto previous bill so as to arrive at the upto date payment proposed under the current bill.

1.9.3 Release of payment

Back to contents page At the end of each Bill in the Abstract Book, the

contractor shall give a certificate that the payments recommended for in the respective bills are accepted.

Thereafter E-I-C shall forward the following documents to

the concerned finance department for release of the payment: 1) Bill movement sheet as per Annexure-VIII. 2) Two copies (Original & Duplicate) of the Measurement

Book. 3) Abstract Book 4) Running Account bill in duplicate. 5) Material Reconciliation Statement (Both Receipt &

Consumption) 6) Certificate & Check Lists as per Annexures-A

bill movement sheet for MB/AB shall be maintained by E-I-C and also by the F&A deptt. as per the format enclosed at Annexure-VIII. The accounts deptt. shall ensure that the running bills are passed within 5 days of receipt of the bill in F&A deptt. Where the running bill cannot be passed within receipt of 5 days, the accounts deptt. shall advice the bill preparing authority with remarks. Payments where Foreign Currency is involved the relevant documents shall be forwarded by the respective group/division office through Regional Finance to Corporate Centre. All the corrections in the MBs/ABs and bill forms including the pass order shall be done only in red ink by F&A Deptt. Where the work is not measurable such as patch work etc. a certificate shall be given in the Abstract by the in-charge to the effect that the work is not susceptible to measurements.

A Flow Diagram regarding release of payments is enclosed as Annexure-XIV.

1.10 Recording and Test Checking Back to contents page

1.10.1 Responsibilities for recording & checking measurements


a) Detailed measurements should be recorded by Executive or Senior Executive only. Junior

Engineers(storekeepers in stores) may, in cases where the Engineer-in-charge considers that the exigencies of the service require it, record the measurements in measurement book subject to 100% verification by E1/E2/E3 for hidden/underground works & 40% for other works.

b) TRANSMISSION LINES

----------------------------------------------------------------------------------------------- S. Items To be recorded by Test Checked by Approved by No. Field Work Engr. Inch.

----------------------------------------------------------------------------------------------- 01. Survey & Soil- Jr. Engr. E1/E2/E3 E4/E5 Divisional Head* Investigation 100% 100% 40% E6 20% E1/E2/E3 E4/E5 E6 --- do --- 100% 40% 20% 02. Foundation work Jr. Engr. E1/E2/E3 E4/E5 Group Head** (classification & 100% 100% 40% Test Check-10% concreting etc.) E1/E2/E3 E4/E5 --- do --- 100% 40%

-----------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------- S. Items To be recorded by Test Checked by Approved by

No. Field Work Engr. Inch.

----------------------------------------------------------------------------------------------- 03. Pile,well,Spl. Jr. Engr. E1/E2/E3 E4/E5 DGM foundations and 100% 100% 40% other works like benching/revet- ment etc. E1/E2/E3 E4/E5 E6 --- do --- 100% 40% 20% 04. Tower Jr. Engr. E1/E2/E3 E4/E5 Group Head Erection 100% 40% 20% Test Check-10% E1/E2/E3 E4/E5 --- do --- 100% 40% 05. Stringing Jr. Engr. E1/E2/E3 E4/E5 Group Head 100% 40% 20% Test Check-10% E1/E2/E3 E4/E5 --- do --- 100% 40% 06. Other misc. Jr. Engr. E1/E2/E3 E4/E5 Group Head works of line 100% 40% 20% Test Check-10% and O& M of line E1/E2/E3 E4/E5 --- do --- 100% 40%

----------------------------------------------------------------------------------------------- * - The Divisional Head shall accord the principle approval for the item and the approved note

shall be enclosed with the bill. The bill shall be passed as per DOP Note - Bill shall be approved by the respective approving authority as per the DOP only.

However, in the due course of works the test checks may be carried out by the various higher authorities as given in the above chart and this shall be recorded in prescribed formates in measurement book.

- Divisional head should visit the site frequently. Test check of the important

activities shall be carried out by the divisional head whenever he visits the site and the same shall be recorded in JMC/MB.

----------------------------------------------------------------------------------------------- S. Items To be recorded by Test Checked by Approved by No. Field Work Engr. Inch. ----------------------------------------------------------------------------------------------- 01. Under Ground/ Jr. Engr. E1/E2/E3 E4/E5 Group Head Hidden/Costly 100% 100% 40% Test Check-10% Works E1/E2/E3 E4/E5 --- do --- 100% 40% 02. Site Levelling Jr. Engr. E1/E2/E3 E4/E5 Divisional Head* 100% 100% 40% Test Check-10% E1/E2/E3 E4/E5 E6 --- do --- 100% 40% 20% 03. Boundaery wall Jr. Engr. E1/E2/E3 E4/E5 Group Head (Super Str.) 100% 40% 20% Test Check-10% E1/E2/E3 E4/E5 --- do --- 100% 40% 04. Road Works Jr. Engr. E1/E2/E3 E4/E5 Group Head 100% 40% 20% Test Check-10% E1/E2/E3 E4/E5 ----do---- 100% 40% ----------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------- S. Items To be recorded by Test Checked by Approved by No. Field Work Engr. Inch. -----------------------------------------------------------------------------------------------

05. S/S. Civil/ Jr. Engr. E1/E2/E3 E4/E5 Group Head Bldg. Constn./ 100% 40% 20% Test Check-10% E1/E2/E3 E4/E5 --- do --- 100% 40% 06. S/Yard Jr. Engr. E1/E2/E3 E4/E5 Group Head Erection/Fire 100% 40% 20% Test Check-10% Fighting/A/C. TF/SR erection E1/E2/E3 E4/E5 --- do --- Etc. 100% 40% 07. S/stn. O&M Jr. Engr. E1/E2/E3 E4/E5 Group Head works 100% 40% 20% Test Check-10% E1/E2/E3 E4/E5 --- do --- 100% 40% -----------------------------------------------------------------------------------------------

* - The Divisional Head shall accord the principle approval for the item and the approved note

shall be enclosed with the bill. The bill shall be passed as per DOP Note- Bill shall be approved by the respective approving authority as per the DOP only.

However, in the due course of works the test checks may be carried out by the various higher authorities as given in the above chart and this shall be recorded in prescribed formates in measurement book.

- Divisional head should visit the site frequently. Test check of the important activities

shall be carried out by the divisional head whenever he visits the site and the same shall be recorded in JMC/MB.

1.10.2 Test Checks

Back to contents page i) Test checking is to be carried out by the authorities

as stipulated in the para 1.10.1. Authority carrying out check test should record the same in the Measurement Book as per index for test checking (Annexure-X). Nevertheless authorities carrying out check test should ensure that item being test checked by him was not already test checked by the authority below him.

ii) The percentage of the test check shown in para 1.10

is both for payment & possibly the number of items. Test check should be carried out atleast every alternate bill for the works at HQ of the authority and atleast every third bill for the work out of HQ of the authority. However, total test check carried out by an authority should satisfy the percentage mention as per para 1.10.

Test check of the authority shall also include atleast

10% of test checks of the measurements of RCC item so as to ensure structural safety of the building/ structure.

A remark to the effect that an item has been test

checked shall be recorded against the items checked in the MB indicating the date of test check and initials of the test checking official. When measurements are taken by two persons jointly, both of them shall sign on the MB. For T/L foundation, test check shall be recorded in JMC.

iii) Divisional head should visit the site frequently.

Test check of the important activities shall be carried out by the divisional head whenever he visits the site and the same shall be recorded in JMC/MB.

v) The official carrying out test check of the

measurements, recorded by their subordinate official, is normally expected to carry out an effective check of costly, hidden & special items.

vi) In case of levelling operations and earth work,

measurements are required to be recorded in level books in addition to Measurement Books. The level books should be numbered, accounted for and handled like Measurement Books. Before starting the earth work (S/S levels), original ground level should be recorded in the level book in the presence of contractor or his authorised representative and should be signed by him

and the Departmental Officer who records the levels. All the local mounds and depressions should be indicated clearly in the drawing and field level book and should be checked by site Engineer before levelling is started.

Measurements of the levelling work shall be recorded by an official not less than E1. Levels may also be taken by a Jr. Engineer but these shall be verified/checked by an officer not less then E1 in presence of the contractor. Contour map shall be prepared before commencement of the work & after completion of the job. Also "L"section & cross section as per the spot levels shall be prepared & duly signed by the rep. of Powergrid & contractor. The"L" section,contour plan & the level book shall be sent to DHQ & Approval of Divisional Head shall be obtained. After approval,the contour plan"L"section & spot levels field book shall be kept in the safe custody of E-I-C of the work. Format of Level Book is given in Annexure-XI.

In case of large scale levelling works involving both cutting and filling, an accurate site plan should be prepared before the work is commenced. The portions requiring cutting and filling shall then be divided into squares and corresponding squares into filling, which are complementary to the squares in cutting given the same number. A table may be written upon the plan showing leads involved between the various complementary squares. This would form a lead chart for the work to be done. Before the work of levelling is commenced, the lead chart shall be checked by a responsible officials of the department not below the rank of an E4/E5 in presence of the contractor or his authorised representative and his signatures shall be obtained on the same. This should form an integral part of the contract and should be duly signed by both the parties before commencement of the work. The quantity payable for earthwork shall be lower of the two quantities derived from cutting or filling. The payment for lead shall be based on lead chart prepared in the aforesaid manner. The detailed calculation procedure has been explained as per Annexure-XV.

Every fourth running bill & the final bill should be paid on the basis of levels. Intermediate payments can, however, be made on the basis of borrow pit measurements. The EIC should take care that the quantities thus assessed are not in any case more than the actual work done.

vi) For gravel work, a detailed record of material brought

by the contractor shall be maintained by the Site Engineer. Gravelling work shall be measured both ways i.e. stack measurement shall be taken before spreading the gravel and it shall be counter checked by measuring after the same has been spread and compacted. Both the modes of measurements shall be recorded in the MB.

1.10.3 Important Items for Measurement

Back to contents page Important works within meaning of above, includes items

which owing to the situation cannot be subsequently checked or which have very high unit rates. For guidance, these items are classified generally as follows: The list is only indicative and any such or similar items shall fall under this category.

(A) Hidden & Concealed Items

Back to contents page Items of work which owing to their situation cannot

subsequently be checked.

i) All work below ground level such as : (a) Concrete, Masonary, Steel work etc. in foundations

ii) Fabricated steel work in columns, beams etc. which are

encased either in masonary or concrete. iii) Wood work, iron work etc. hidden by ceilings, wall

panelling or floor boardings. iv) Bitumen painting of roofs under mud phuska and tiles

paving or under terrace concrete. v) Water proofing compounds used in grouting cement. vi) Lines of pipes buried in floor or masonary in internal

sanitary, water supply or drainage installations. vii) Any other hidden or concealed work not mentioned

above. (B) Costly/Special Items

Back to contents page - Civil Works Items of works which are considered to have very high

unit rates.

i) RCC work. ii) Items in sunk ashlar stone or marble work, plain

sunk or moulded in walls, columns, arches or domes. Any other stone superior to marble.

iii) Stone or marble in wall lining. iv) a) All wood work in Chowkhats, frames or

trusses whether in country, Indian or Burmah teakwood.

b) All joinery work in shutters trellis works,

miscellaneous wood work etc. whether in country, Indian or Burmah teakwood.

c) All brass, oxidised brass or other similar

costly fit-tings of doors, windows etc. where payable separately. Items of aluminium door/windows/glazing work.

v) a) Steel work cut, hoisted and fixed or steel

work fabricated, hoisted and fixed. b) Steel doors, windows, shutters, grills etc.

vi) Flooring, skirting and dado work in situ-mosaic,

terrazo tiles, Shahbad stone slabs, Agra stone slabs, or marble slabs.

vii) Ceiling with A.C. sheets, hard board insulation

board or wooden planks. Items of false ceiling and its support system.

viii)All sanitary fittings such as wash basins, sinks,

urinals,stall urinals, bath tubs and water closets.

ix) a) Storage tank items in water supply. b) Sluice valves, fire hydrants etc. in water

supply. c) C.I. or Hume pipes and specials and their

lead caulked joints in water supply.

x) a) Manholes, ventshafts, road gully chambers, adams syphons, manhole covers and frames.

b) C.I. Inspection bends and chambers in C.I.

Pipes drainage.

- Electrical Items

i) Welding of aluminium pipes used for bus. ii) Welding of ground mat used for earthing of

substation iii) Welding of fire fighting pipes. iv) Cables burried in ground. v) Earthing of substation and equipments. vi) Thermal insulation used for air conditioning

ducts. vii) Laying & dressing of power & control cables. viii)Tightening of nut bolts for structures and

clamps/connectors. ix) Electrical fixtures and MCB's x) Electrical wires and its conduits.

(C) Recording of Measurements in Respect of Length of

Pile: Back to contents page

The method of measurement for different types of piles

is given in IS:1200 part (XXIII) latest edition. However, the following method should be adopted in the case of bored cast in situ, driven cast in situ and driven pre- cast piles.

Bored Cast-in-situ piles: The steel cage to be lowered in the pile bore hole

shall be measured accurately by a steel tape on the ground. After the cage is lowered and rested in the hole, the length of the cage above the cut-off level shall be measured separately with the help of levels. The difference between the total length of the steel cage and the latter length shall be the length of the pile below cut-off level and shall be (x-Y) units (Fig.-I, Sketch-I).

Driven Cast - in - situ piles:

The height of the shoe shall be measured in advance of its placement in position. The length of the casing pipe to be driven for a particular pile shall be measured with the help of steel tape accurately on the

ground. If more than a single piece of casing pipe is required to be driven into the hole, the same shall also be measured. After the casing has been driven to refusal as per specification, the length of the casing above the cut-off level shall be measured with the help of levels. The length of the pile below cut off level shall be calculated by deducting the later length from the total length of the casing pipe(s) plus the shoe height (Fig.-I, Sketch-II) and shall be (x+z-y) units. However in case the reinforcement cage is made by joining two or more no. of cages then the overlapping distances at the joints should not be considered. Driven pre-cast The length of the pre-cast pile shall be measured upto toe with the help of steel tape accurately on the ground. The length above cut off level shall be measured with the help of levels. The length of the pile below cut off level/shall be (x-y) units(Fig.-I, Sketch-III).

(D) Measurement of Steel Bars: Back to contents page

Bar or any other type of reinforcement used, like hard drawn steel wire fabric etc. for reinforced concrete shall be measured by weight in Tonnes. The weight shall be arrived at by multiplying the actual or theoretical length measured along standard hooks, cranks, bends, authorised laps etc. whichever is less, by the sectional weights. Claims for payment for this item shall be submitted with supporting document giving the schedule of Bars with sketches. The sectional weight to be adopted shall be IS Sectional weight.

Standard hooks, cranks, bends, authorised laps etc. shall be measured. Separator pieces between two or more layers of steel shall not be measured.

No payment shall be made for lap welding or butt

welding if permitted, supports, chairs, hangers, etc. of height 300 mm and less, required for keeping the steel in position unless otherwise specified in the contract. For supporting horizontal reinforcement at heights larger than 300 mm, support drawings shall be prepared by the Contractor and payment shall be made for the supports as approved by the Engineer-in-Charge, or as actually placed, whichever is less, at the same rate as for reinforcement.

No extra payment shall be paid for modification of

already embedded reinforcement, if required due to faulty fabrication or placement. Dowels neither shown in the drawings nor instructed by the Engineer-in-Charge, but required for construction facilities and/or sequences, shall not be measured.

(E) Measurements of Earth Mat & Fire Fighting Pipes

Back to contents page Earth Mat & Fire Fighting Pipes shall be treated as

hidden items and the measurements & the test check of these items shall be carried out as applicable to hidden items of Civil construction works.

(F) Antiweed Treatment in Substation

Back to contents page Anti-weed treatment shall be treated as hidden items

and the measurements & the test check of these items shall be carried out as applicable to hidden items of Civil construction works.

Section-Two

Guidelines

----------------------------------------------------------------- SECTION

TWO -----------------------------------------------------------------

GUIDELINES


2.1 Guidelines for maintenance of MB/AB Back to contents page

2.1.1 The Measurement Book/Abstract Book must be looked upon as

the most important record since it is the basis of all ac-counts of quantities, work done by daily labour, by the piece worker or contractor or of materials received, which have to be counted or measured. The description of the works must be such as to admit the easy identification and check. Before the book is brought into use, the pages should be examined and any serious defects such as tearing off or the substitution of pages brought to notice at once.

2.1.2 All entries in Measurement Book/Abstract Book should be made

in ink/dot pen. 2.1.3 As all payments of works or supplies must be based on the

quantities recorded in the Measurement Book, it is incumbent upon the person taking the measurement to record the quantities clearly and accurately. If the measurements are taken in connection with a running contract on which work has been previously measured. He is further responsible (1) that a reference to the last set of measurement is recorded (2) that if entries for job or contract have been completed the fact is recorded prominently just above his initials.

2.1.4 Entries should be recorded continuously in the Measurement

Books/Abstract Book. No blank page may be left and no page torn out. Any page left blank inadvertently must be canceled by diagonal lines, the cancellation being attested. No, entry should be crossed, or effected so as to be legible. If a mistake is made, it should be corrected by crossing out the incorrect words or figures and rewriting in the words or figures and the correction thus made should be initialed and dated by the officer making it. When any measurements are cancelled, the cancellation must be supported by the dated initials of the officer ordering the cancellation or by a reference to his orders by the officer who made the measurements. In either case, the reason for cancellation should be recorded. A reliable record is the object to be aimed at as it may have to be produced as an evidence in court of law.

2.1.5 No lines may be left blank. The lines not required should be carefully crossed out in ink in order to prevent additional entries being made afterwards. The total carried forward from the previous page of a measurement book should be entered above the top line, similarly the total at the foot of each page should be entered below the bottom line.

2.1.6 Each Measurement Book should be provided with an index which

should be posted upto date as measurements are recorded in the book.

2.1.7 The signature of the contractor or his agent should be

obtained in measurement book after such set of measurements with the addition, I accept all measurements. In the case of illiterate men their thumb impression may be taken.

2.1.8 Construction Engineers are responsible for the correctness

of the entries in Measurement Book. 2.1.9 Check-measurements should be noted in Measurement Books, the

items actually check measured being distinguished by the initials of checking officer.

2.2. Guidelines for filling up of Material Reconciliation

Statement (MRS, Annex.-Va & Vb) Back to contents page

2.2.1 Itemwise proforma at Annexure-Va for receipt of various

materials is to be submitted alongwith every IIIrd RA bill as well as the final bill by the erection contractor or his authorised representative and POWERGRID official recording the bill.

2.2.2 Items received datewise in various consignments in the

period since the last MRS should be indicated in columns no. 1 to 14.

2.2.3 For supplies from the manufacturers, name of manufacturer

should be filled up in column no.3. However, for supplies diverted from other regions, name of region should also be entered in this column. Possibly the make/manufacturer's name should also be mentioned.

2.2.4 MRHOV/TOC No. should be indicated for materials from

suppliers in column no.8. MTV should also be filled up in this column if the supplies are diverted from other regions /other packages at the same site.

2.2.5 Itemwise opening balance from the last such Reconciliation

statement for good/complete and damage/incomplete material should be entered in column No. 5&6. These entries have to be taken from Column (9&10) of Annexure-Vb submitted with the last MRS.

2.2.6 For material transferred out to other sites/regions, entries

should be filled up in column no. 15 & 16. (Name of the site/region should also be filled up in Column No.3 along with all details of MTV No., make & date etc.)

2.2.7 Net receipt entries of Column No. 17 & 18 in Annexure-Va

should be reproduced in column no. 2 & 3 of Annexure-Vb. 2.2.8 Material reconciliation statement for consumption (at

Annexure-Vb) should be filled while preparing every IIIrd RA as well as the final bill by the erection contractor or his authorised representative and POWERGRID official recording the bill.

2.2.9 For control purpose RAB No. and receipt/consumption

statement No. should be the same. 2.2.10 Material consumed since last reconciliation should be

entered in Column No. 4 of Consumption Statement (Annex.-Vb).

2.2.11 All the columns in the Annexure are self explanatory and

should be filled up accordingly.

Section-Three

Formats & Proforma

----------------------------------------------------------------------------------- SECTION

THREE -----------------------------------------------------------------------------------

FORMAT OF MEASUREMENT BOOK

ANNEXURE-I


POWER GRID CORPORATION OF INDIA LIMITED GROUP.................... M.B.NO.......... RA BILL NO.............PAGE NO...... +-------------------------------------------------------------------+ ¦Sl.¦Item ¦DESCRIPTION ¦Carried Over¦ Details of ¦Content¦ ¦No.¦No. of¦ ¦to page No. ¦ actual ¦-------¦ ¦ ¦BOQ ¦ ¦of Abstract ¦ measurements ¦Area ¦ +---¦------¦------------¦------------¦----------------------¦-------¦ ¦ ¦ ¦ ¦ ¦ No ¦ L ¦ B ¦ D ¦ ¦ +---¦------¦------------¦------------¦----¦-----¦-----¦-----¦-------¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ +-------------------------------------------------------------------+

Dtd. sign. of the Dtd. sign. of the officer preparing officer authorising the bill payment Dtd. Sign of Engineer/Sr. Engineer Dy. Mgr./Mgr./Chief Mgr. contractor

Annexure-II

Back to contents page FORMAT OF ABSTRACT BOOK

POWER GRID CORPORATION OF INDIA LIMITED

Period of Measurement From………………..to……………………… Date of Recording of Measurement Schedule date of completion as per Bar Chart Actual Date of Completion (in case of final Bill) Reference to previous RA Bill RUNNING/FINAL BILL No............ Book No. .......... Page No. .......... +--------------------------------------------------------------------+ ¦Item No¦Descrip-¦Ref. ¦Quantity Executed ¦ ¦ ¦ AMOUNT ¦ ¦of BOQ ¦tion of ¦page no+------------------¦ ¦ ¦--------------¦ ¦ ¦work ¦of MB ¦Upto date¦Since ¦ ¦ ¦Upto ¦Since ¦ ¦ ¦ ¦ ¦ ¦Previous¦Unit¦Rate¦Date ¦Previous¦ +-------¦--------¦-------¦---------¦--------+----¦----¦-----¦--------¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ +--------------------------------------------------------------------+

Dtd. sign. of the Dtd. sign. of the Officer preparing officer authorising the bill payment Dtd. sign. of Engineer/Sr. Engineer Dy.Mngr./Mngr./Chief Mngr. contractor

Annexure-III


FORMAT OF RUNNING/FINAL ACCOUNT BILL

POWER GRID CORPORATION OF INDIA LIMITED Name of the work : Name of the Contractor : LOA No. : Period of Measurement From…………….to………………… : Date of Recording of Measurement : Scheduled date of completion as per Bar Chart : Actual Date of Completion (in case of final Bill) : Reference to previous RA Bill : RUNNING/FINAL BILL No............ +--------------------------------------------------------------------+ ¦Item No¦Descrip-¦Ref. ¦Quantity Executed ¦ ¦ ¦ AMOUNT ¦ ¦of BOQ ¦tion of ¦page no+------------------¦ ¦ ¦--------------¦ ¦ ¦work ¦of MB ¦Upto date¦Since ¦ ¦ ¦Upto ¦Since ¦ ¦ ¦ ¦ ¦ ¦Previous¦Unit¦Rate¦Date ¦Previous¦ +-------¦--------¦-------¦---------¦--------+----¦----¦-----¦--------¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦TOTAL¦ ¦ ¦ ¦ ¦ ¦Add/deduct tender percentage if any ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ Total value of work upto date ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ Deduct upto date value of work ¦ ¦ ¦ ¦ ¦ ¦ shown in previous bill ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ Value of work since prev. bill ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ +--------------------------------------------------------------------+

CERTIFICATE & SIGNATURES 1. The measurement recorded above are based on the entires at

pages....to....of Measurement Book No....which were recorded by...........on.............

2. Certified that not less than the quantity of work shown above has

actually been executed by the contractor. 3. Certified that no other materials Plant/Machinery as shown in

the schedules attached have been issued to the contractor. 4. Certified that work has been completed as per specifications and

methods of measurment are correct. 5. There are no claims against the contractor. Certificate No.4&5 Dtd. sign. of Dtd. sign. of are to be issued for the officer the officer final bills only preparing bill authorising payment Dtd. sign. of Engr./Sr. Engr. Dy. Mngr./Mngr./ contractor Chief Mngr.

Running/Final Bill No........ Dated...............

MEMORANDUM OF PAYMENT (FOR USE IN ACCOUNTS OFFICE) ------------------------------------------------------------------ - Value of Works since previous ¦ - Bill payment now to be made as detailed ¦ below by recovery of amount creditable to ¦ ¦ i) Income tax ¦ ii) Security Deposit ¦ iii) Mobilisation advance ¦ iv) Interest ¦ v) Secured Advance ¦ vi) Retention Money ¦ vii) Cost of Material ¦ a) Cement ¦ b) Steel Mild ¦ c) Steel Tor ¦ d) Others ¦ viii)Rebate ¦ ix) Other Recoveries ¦ Total of Recoveries¦ ------------------------------------------------------------------ Pay....................Rs.................. Acctt/Sr.Acctt. Acctt. Officer Sr. Acct Officer Manager(F) Received Rs....................................... (Rs..............................................) +--------+ ¦ Stamp ¦ ¦ ¦ ¦ ¦ ¦ ¦ +--------+

(Full Signature of the Contractor) Paid by me vide cheque No.............of .............. ---------------------------------------------------------------- Remarks

Annexure -IV


FORMAT OF JOINT MEASUREMENT CERTIFICATE POWER GRID CORPORATION OF INDIA LTD.

JOINT MEASUREMENT CERTIFICATE(T/L. FOUNDATION) Name of Group : Name of Line : LOA No. & Date : Executing Agency : JMC No. .................. Date: ..................... Loc No. .................. Type of tower ............. Drawing No. .................. Fndn. classification....... Depth of water table ...... (1) Excavation Details (a) Type of soil +------------------------------------------+ ¦ DESIGNATION¦ TYPE OF SOIL & DEPTH ¦ ¦ OF PIT +-----------------------------¦ ¦ ¦ DRY ¦ WET ¦ HARD ¦ FR ¦ HR ¦ +------------+-----¦-----¦-------¦----¦----¦ ¦ PIT A ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ PIT B ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ PIT C ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ PIT D ¦ ¦ ¦ ¦ ¦ ¦ +------------------------------------------+

b) AREA OF PIT : L= .... mt. B= ..... mt. AREA = ..... sq. m. c) Vol. of Excavation = .......cu. m. 2) Checking of casting a) Alignment of loc. & template = ..... b) Diagonal = ..... c) Level = ..... d) Quality of i) Metal = .... ii) Sand = .... iii) Cement = .... iv) Reinforcement = .... v) Water = ....

3) Concreting Details

a) Volume of concrete (1:2:4) = .......cu. m. b) Volume of concrete (1:3:6) = .......cu. m. c) Quant. of cement bags = .......Bags d) Quant. of Reinforcement = .......MT (Dia. wise) 4) Test cube prepared = .... CERTIFICATE: WORK IS EXECUTED AS PER SPECIFICATION. FOR CONTRACTOR FOR POWERGRID Signature ...... Signature ...... Name: ......... Name ........... Design. ........ Design.(Jr.Engr./E1/E2/E3) Date ........ Date ...........

Name of Contractor:- Statement No.:- ANNEXIURE-VA Package Name/LOA:-

Back to contents page PROFORMA OF MATERIAL RECONCILIATION STATEMENT (RECEIPTS)

Opening Balance Received from Supplier

TRANSFER/ IN

TOTAL RECEIPT TRANSFER OUT NET RECEIPT =(OP.BAL+TOT. RECT.)-TR.OUT

Sl. No.

Item Name Name of Manuf./Site or Region

Unit

Good/ Comp.

Damage/ Incomp.

Date MRHOV/ MRC/

MTV No.

GOOD/ COMP.

DAMAGE/ INCOMP.

GOOD/ COMP.

DAMAGE/ INCOMP.

GOOD/ COMP.

DAMAGE/ INCOMP.

GOOD/ COMP.

DAMAGE/ INCOMP.

GOOD/ COMP.

DAMAGE/ INCOMP.

1 2 3 4 5 6 7 8 9 10 11 12 13=9+11 14=10+12 15 16 17=5+13-15 18=6+14-16

i) ii) iii)

E/W ----- TOTAL ACSR ------ TOTAL M.S. Jt. For ACSR TOTAL

CONTRACTOR POWERGRID Signature ......... Signature ......... Name ............ Name ............. Desgn. ............ Desgn. (Supr./E1/E2/E3) Date ............. Date .............

Name of Contractor:-

Statement No.:- Annexure-VB Package Name/LOA:- Back to contents page

PROFORMA OF MATERIAL RECONCILIATION STATEMENT

(CONSUMPTION) _________________________________________________________ FOR FINAL BILL _____________________________________________________

Item Receipt Allowable wastage Actual wastage by

contractor Material lying

with the contractor

Balance Mat. to be Returned to

POWERGRID

MATERIAL RETURNED MATERIAL NOT RETURNED/TO

BE RECOVERED

Sl. No.

Good/ comp.

Damage/ Incomp.

Qty. consumed since prev.

Qty.

Total consumption=

consumed+ (allow.\

actual wastage)

GOOD/ COMP.

DAMAGE/ INCOMP.

GOOD/ COMP.

DAMAGE/ INCOMP.

GOOD/ COMP.

DAMAGE/ INCOMP.

GOOD/ COMP.

DAMAGE/ INCOMP.

1 2 3 4 5 6 7 8=4+(6or7)* 9=2-8 10=3 11=9+(7-6)# 12=10 13 14 15=11-13 16=12+14

CONTRACTOR POWERGRID POWERGRID Signature ......... Signature ......... Signature ......... Name ............ Name ............. Name ............. Desgn. ............ Desgn. (Jr. Engr./E1/E2/E3) Group Head ……………………. Date ............. Date ............. Date ………………………………. 1. * Whichever is high 2. # If (7-6) > 0 otherwise 11=9

Annexure-VI FORMAT OF STOCK REGISTER FOR MEASUREMENT/ABSTRACT BOOKS


POWERGRID CORPORATION OF INDIA LIMITED

(A Govt. of India Enterprise) +--------------------------------------------------------------------------------------------------+ ¦ ¦ ¦ Receipt ¦Cumula-¦ Issued ¦Balance ¦ Verif- ¦ ¦Sl.¦Open.+---------------------------¦tive +----------------------------------¦Stock ¦ ied by ¦ ¦No.¦Bal. ¦Date¦No. ¦Sl. No.¦ Recd. ¦Receipt¦Date¦No.¦Sl. No. ¦Issued ¦Issued ¦ ¦ ¦ ¦ ¦ ¦ ¦of ¦ ¦ by ¦ ¦ ¦of ¦of books¦ by ¦ to ¦ ¦ ¦ ¦ ¦ ¦ ¦Books¦From-To¦(Sign.& ¦ ¦ ¦bo-¦ ¦(Sign.&¦(Sign.&)¦ ¦ (Sign.&¦ ¦ ¦ ¦ ¦ ¦ ¦Design.)¦ ¦ ¦oks¦ ¦Design)¦Design.)¦ ¦ Design)¦ ¦ 1 ¦ 2 ¦ 3 ¦ 4 ¦ 5 ¦ 6 ¦7=(2+4)¦ 8 ¦ 9 ¦ 10 ¦ 11 ¦ 12 ¦13=(7-9)¦ 14 ¦ +---+-----+----+-----+-------+--------+-------+----+---+--------+-------+--------+--------+--------¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ +--------------------------------------------------------------------------------------------------+

Annexure-VII Back to contents page

FORMAT OF CERTIFICATE FOR FINAL BILLS


NAME OF WORK ................ LOA NO. & DATE: ............ NAME OF CONTRACTOR ...................... 1) Measurements recorded at Page No. ……………………… to ………………………. Of MB

No. …………………… are accepted. 2) Certified that the quantities under BOQ item No. ………………… was not

required in the work and hence has not been executed. 2) Final measurement and payment accepted in full and final

settlement of the contract and there are no dues against this contract.

3) There are no claims against this contract.

SD/- & date CONTRACTOR

1) Certified that the work is hereby taken over by POWERGRID

on ………………………………………….. 2) Certified that site has been cleared by the contractor. 3) Certified that the quantities of BOQ No......... was not

required in this work and the same has not been executed through any other agency during the currency of the contract.

SD/- & Date SD/- & Date SD/- & Date E1/E2/E3 E4/E5 Group Head

Annexure - VIII Back to contents page

FORMAT OF BILL MOVEMENT SHEET


BILLS MOVEMENT SHEET (BY GHQ)

1) Contract No. & date : _________________________ 2) Name of the Contractor : _________________________ 3) Name of work : _________________________ 4) Bill No and date : _________________________ 5) Date of receipt of the Bill by E-I-C : _________________________ 6) Date of forwarding of Bill to Finance by Group Head and Despatch No.and MB/AB nos. : _________________________ 7) Gross value of the R/A Bill : _________________________ Sign. of E4/E5 Sign. of Grp. Head (BY FINANCE DEPTT.) 1) Contract No. & date : _________________________ 2) Name of the Contractor : _________________________ 3) Name of work : _________________________ 4) Bill No. and date : _________________________ 5) Date of receipt of the Bill : _________________________ 6) Date of passing the bill : _________________________ 7) Date of returning the : _________________________ bill to E-I-C and despatch no. Sign. of AO/Sr. AO/DM F&A Sign. of Head/HOD

Annexure - IX Back to contents page

LOCATION CODES


LOCATION CODE : (1st DIGIT) 1.0 LOCATION CODE CORPORATE CENTRE (CC) 1 NATIONAL LOAD DESPATCH 2 CENTRES (NLDCC) NORTHERN REGION (NR-I) 3 NORTHERN REGION (NR-II) 4 EASTERN REGION (ER) 5 NORTH EASTERN REGION (NER) 6 WESTERN REGION (WR) 7 SOUTHERN (SR) 8 -- 9 2.0 LOCATION CODE (II & III DIGIT) POWERGRID'S Groups/Sub Stn./Site Offices (01 to 40) NR-I BASSI (JAIPUR) 01 BALLABGARH 02 MANDOLA 03 AGRA 04 MURADNAGAR 05 BAREILLY 06 DADRI 07

RIHAND 08 VIDHYACHAL 09 KANPUR 10 ALLAHABAD 11 SHAKTINAGAR 12 NR - II WAGOORA 01 KISHENPUR 02 SALAL 03 SARNA 04 NURPUR 05 MOGA 06 MALERKOTLA 07 HISSAR 08 JAMMU 09 JALANDHAR 10 ABDULLAPUR 11 NALAGARH 12 ER FARAKKA 01 KAHALGAON 02 DURGAPUR 03 MAITHON 04 JAMSHEDPUR 05 ROURKELA 06 RENGALI 07 INDRAVATI 08

JEYPORE 09 MALDA 10 SILIGURI 11 BIRPARA 12 POOORNEA 13 DALKHOLA 14 NER MISA 01 BALIPARA 02 SALAKATI 03 IMPHAL 04 DIMAPUR 05 JIRIBAM 06 AIZWAL 07 HAFLONG 08 KUMARGHAT 09 NIRJULI 10 WR ITARSI 01 JABALPUR 02 BHADRAWATI 03 DEHGAM 04 SR GUNTUR 01 GHATKESAR MANDAL 02 CUDDAPAH 03

SALEM 04 BANGALORE 05 GOOTY 06 RAICHUR 07 KHAMMAM 08 VIJAYWADA 09 VISAKHAPATNAM 10 TRICHY 11 UDUMALPET 12 MADURAI 13 TRICHUR 14 CHENGULPET 15 JEYPORE 16 KORAPUT 17 3.0 STORES AT SEB'S SUB-STATION HAVING POWERGRID BAYS - CODE 41 TO 70 4.0 OFFICES AT SLDC (SUB-LOAD DESPATCH CENTRE) - CODE 71 TO 99 Illustration For Numbering MB/AB (i) Code for Constrn. Mgt.in Corp. Centre for MB No.125 is

1/CM/MB/125

(ii) Code for Shaktinagar office in NR-I for MB No.112 is

3/12/MB/112 (iii) Code for Abdullapur office in NR-II for AB No. 156 is

4/11/AB/156

Annexure-X Back to contents page

FORMAT OF INDEX FOR TEST CHECKING

BOOK NO. .............


MEASUREMENT BOOK

I N D E X --------------------------------------------------------------------------------------------- Sl. Page Name of Name of RA Bill Work order Details of test check Remarks No. From- contra- work No. & No./Agree- To ctor Executed date ment No. & ------------------------ date Page Design. of test No.& checking Date official --------------------------------------------------------------------------------------------- ___________________________________________________________________________________________________

Annexure-XI Back to contents page

FORMAT OF LEVEL BOOK

POWER GRID CORPORATION OF INDIA LIMITED +-------------------------------------------------------+ ¦STATION¦ R E A D I N G S ¦R.L OF PLANE¦REDUCED¦REMARKS¦ ¦ +-----------------¦ OF ¦LEVEL ¦ ¦ ¦ ¦ BACK¦INTER¦FORE ¦COLLIMATION ¦ ¦ ¦ ¦ ¦SIGHT¦SIGHT¦SIGHT¦ ¦ ¦ ¦ +------- ¦-----¦-----¦-----¦------------¦-------¦-------¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ +-------------------------------------------------------+ Sign. ............ Name ............ Desig.(Jr.Engr./E1/E2/E3) Date ......

Section-Four

Checklist & Flow Diagram

Annexure- XII


FORMAT OF CHECK LIST FOR RUNNING ACCOUNT BILLS

POWER GRID CORPORATION OF INDIA LIMITED NAME OF WORK ............. LOA NO. ........ NAME OF CONTRACTOR ............. DATE ........... RUNNING BILL NO. .............

1) Has the bill been prepared in the specified form and in ink/types. : YES/NO 2) Has the Contractor/Attorney signed the bill and accepted the measurements. : YES/NO 3) Have the measurement been test checked as per procedure. : YES/NO 4) Have all the items billed been covered by the sanctioned rates. : YES/NO 5) Has the work measured been executed within the period of completion as per the LOA/extension of time granted. : YES/NO 6) Does the quantities billed fall within the quant- tities provided in the agreement. : YES/NO 7) Have the entries for the realisation of cost of materials issued/services rendered been made. : YES/NO 8) Have the Material Reconciliation Statements both for Receipt & Consumption enclosed (with every : YES/NO 3rd RA bill) 9) Has the statement submitted regarding Theoretical/ Actual consumption of cement/ steel. : YES/NO 10) All cuttings & overwriting have been checked & signed by E-I-C : YES/NO 11) Any other specific point (if any)

.............................................. .............................................. .............................................. .............................................. .............................................. .............................................. .............................................. .............................................. .............................................. ..............................................

Field Engineer Work Incharge Name ........... Name ........... Design. ........... Design. ........... Date ........... Date ...........

Annexure- XIIIA


FORMAT OF CHECK LIST OF FINAL BILL FOR EARTH WORK


(TO BE SUBMITTED WITH FINAL BILL) Name of contractor ............................. LOA No. and date ................................... Special Checks to be exercised in case of final bill : 1. Whether L section and cross section levels at the specified intervals (whether so required) have been YES/NO recorded prior to commencement of the work and on completion of the work. 2. Whether the level books have been YES/NO kept in the safe custody of Incharge of the work. 3. Whether initial ground levels have been recorded in the level book and got duly signed from the contractor YES/NO or his authorized representative/agent and POWERGRID prior to the commencement of the work? 4. Whether blocks levels recorded have been countersigned by the Incharge YES/NO of the work? 5. Whether record of levels with grid plan (which forms the basis for future measurements) have been made YES/NO and original deposited with Engineer Incharge with one copy to Finance and accounts Departments, one copy to contractor and one copy to Jr. Engineer/ Engineer measuring the work?

6. Whether the compaction test results to the required percentage

have been achieved for each layer? YES/NO If so mention the number of tests on specified surface area of each layer recorded? 7. Whether location mentioned in the MB tally with those in the level book? (Uniformity in location YES/NO mentioned in various documents should be maintained to ensure proper checks) 8. Whether the calculations of YES/NO quantities have been checked properly? 9. Whether any extra earth is brought from outside the specified area for YES/NO levelling and if so whether their location has been approved by Engineer I/C and quantum indicated separately? 10. Whether the measurement have been YES/NO taken as per the methods of measurements specified in special conditions/ specifications applicable to the contract? 11. Whether all the excavated materials like singles, boulders, stones, ballast etc. which are not utilised in the levelling work and are required to be stacked as per direction of the E-I-C have YES/NO been stacked properly (Counter check over the quantity with reference to the stacked materials with due allowance for voids/ shrinkage should be exercised). 12. Whether the classification of soil other than 'ordinary soil' has been YES/NO checked at each stage of recording measurements and approved by the E-I-C of the works: 13. Whether all payments made for lead and lift have been measured as per pre-determined scheme of Lead and Lift YES/NO for each area as approved by E-I-C of works? (The official recording the measurements of lead in MB shall record a certificate in the MB to the effect that the lead has been approved by the E-I-C) 14. Where the excavation is in partial YES/NO cutting and partial filling, the

disposal of earth which is cut should be indicated to ensure that payment for filling is not made for more than the necessary quantity. This shall have to be indicated on a plan grid with specified area indicating = ± filling/cutting.

Field Engr. Work Inch. Sig. ...... Sig. ...... Name ...... Name ...... Design. ..... Design. .... Date ..... Date ....

Note:- The L-Section and cross-section to be prepared as per the direction of the E-I-C depending on the volume of work.

Annexure- XIIIB


FORMAT OF CHECK LIST OF FINAL BILL (GENERAL)


(TO BE SUBMITTED WITH FINAL BILL BY E-I-C) Name of contractor ............................. Name of Works ............................. LOA No. and date ............................. 1) All the points (1 to 10) in checklist for RA Bill(Annex.- XII) have been taken care . Yes/NO/NA 2) Whether copies of LOA/ agreement Yes/NO/NA available with all concerned. 3) Final time extension approved by competent Yes/NO/NA Authority(C/A). 4) Final deviation statement approved by C/A. Yes/NO/NA 5) Final escalation bill has been submitted to Yes/NO/NA Finance Department. 6) Extra item/deduction item/substituted items Yes/NO/NA have been got approved by C/A (to mention approval ref. no. and date) 7) Any amendment issued by contracts Deptt. and Yes/NO/NA if so, the reference of the same (Amendment No. and date) 8) NOC issued by site. Yes/NO/NA 9) All certificates regarding final bill have been entered in MB as per Annexure-VII Yes/NO/NA 10) All retentions made upto pre final bill have Yes/NO/NA been reviewed by E-I-C. 11) All advances (mob., equip., matls. etc.) have been fully adjusted. Yes/NO/NA 12) Approval of C/A for Time Extension has been obtained with/ w.o. levy of LD. (ref. no.

and date) and deduction of LD levied if any

has been affected in RA Bill No. ..... /Final Bill in full. Yes/NO/NA 13) All relevant certificates required for closing of the contract have been received and enclosed. Yes/NO/NA 14) Corrections made in the MB of previous RA Yes/NO/NA Bills taken care of in preparing abstract in the final bill. 15) Recovery on account of material supplied Yes/NO/NA outside the scope of LOA is made. 16) "NO DEMAND CERTIFICATE" by the contractor Yes/NO/NA enclosed. 17) Any other specific points, (if any) ................................... ................................... ................................... ................................... ................................... ................................... ................................... Field Engineer Work Incharge Sign. ........... Sign. ........... Name ........... Name ........... Design. ........... Design. ........... Date ........... Date ...........

ANNEXURE-XIV FLOW DIAGRAM OF PAYMENT PROCEDURE

EXECUTION OF WORKS

AT SITE

For T/L Works For S/S works PREPARATION OF JMC FOR PREPARATION OF JMC FOR HIDDEN FOUNDATION WORKS ITEMS IF NOT RECORDED IN MB IMMEDIATELY IF WORK UNDER THE SAME CONTRACT RECORDING OF MEASUREMENTS RECORDING OF MEASUREMENTS IN IS DIVIDED IN 2 OR MORE IN MB MEASUREMENT BOOK (MB) SECTIONS PREPARATION OF ABSTRACT RECORDING OF MEASUREMENTS IN ABSTRACT OF QTY’S & PAYMENT OF QTY’S & PAYMENTS (BOTH ABSTRACT BOOK (AB) TO BE RECORDED IN FOLLOWER PREVIOUS & UPTO DATE) IN AB (FAB) BY INDIVIDUAL SECTION ABSTRACT BOOK (AB) INCHARGE ABSTRACT OF QTY’S & PAYMENT PREPARATION OF RUNNING BILL (RAB) PREPARATION OF RUNNING BILL (RAB) TO BE TRANSFERRED TO MAB IN TRIPLICATE ON THE BASIS OF IN TRIPLICATE ON THE BASIS OF WITH CROSS REFERENCE ABSTRACT ABSTRACT

PREPARATION OF MATERIAL RECONCILIATION STATEMENT (MRS) BOTH FOR RECEIPT & CONSUMPTION WITH EVERY IIIRD RAB FORWARDING OF COMPLETE BILL 1. RAB IN DUPLICATE TO FINANCE 2. AB 3. MB SHEETS IN 2 COPIES 4. CERTIFICATE & CHECKLIST 5. MRS WITH EVERY IIIRD RAB 6. BILL MOVEMENT SHEET CHECKING OF BILL BY FIN. DEPTT. MAKING ALL RECOVERIES, ADJUSTMENTS, TAXES & PLACING THE PASS ORDER RELEASE OF PAYMENT RETURN OF DOCUMENTS TO 1. AB WITH PASS ORDER FIELD OFFICIALS 2. IIND COPY OF RAB ALONG WITH PASS ORDER 3. IIND COPY OF MB DULY CORRECTED, IF ANY 4. BILL MOVEMENT SHEET

Annexure- XV


CALCULATION OF EARTH VOLUME FROM SPOT LEVELS In this method, the field work consists in dividing the area into a number of squares, rectangles or triangles and measuring the levels of their corners before and after the construction. Thus, the depth of excavation or height of filling at every corner is known. Let us assume that the four corners of any one square of rectangle are at different elevations but lie in the same inclined plane. Assume that it is desired to grade down to a level surface a certain distance below the lowest corner. The earth to be moved shall be a right truncated prism, with vertical edges at a, b, c and d [Fig. a]. If ha, hb, hc and hd represent the depth of excavation of the four corners, the volume of the right truncated prism shall be given by V = {(ha +hb +hc +hd)/4} X A = average height x horizontal area of the rectangle. Similarly, let us consider 'the triangle abc of Fig. (b). If ha, hb and hc, are the depths of excavation of the three corners, the volume of the truncated triangular prism is given by

1 2 2 2 1 2 2 4 1 a b d c 3 1 f 4 3 1

Fig.(a) Fig. (b)

V={(ha+hb+hc)/3} X A =(average depth) x horizontal area of the triangle. Volume of a group of rectangles or squares having the same area.[Fig. (a)]

Let us now consider a group of rectangles 'of the same area arranged as shown in [Fig.(b)]. It shall be seen by inspection that some of

4 e

4

the heights are used once only, some heights are common to two rectangles (such as at b), some heights are common to three rectangles (such as at e), and some heights are common to four rectangles (such as at f). Thus, in Fig. each corner height shall be used as many times as there are rectangles joining at the corner (indicated on the figure by numbers)

Let ?h1= the sum of the heights used once. ?h2 = the sum of the heights used twice. ?h3 = the sum of the heights used thrice. ?h4 = the sum of the heights used four times. A = horizontal area of the cross-section of one prism. Then, the total volume is given by V = A(1Sh1+2Sh2+3Sh3+4Sh4)/4

Volume of a group of triangles having equal area [Fig. (b)]

If the ground is very much undulating, the area may be divided into a number of triangles having equal area. In this case, some corner heights shall be used once such as point 'a' of Fig.(b) , some twice (such as at d), six times (such as at f) , and seven times (such as at j). The maximum number of times a corner height can be used is eight. Thus, in Fig. (b), each corner height shall be used as many times as there are triangles joining at the corner (indicated in the figure by numbers) .

Let ?h1 =the sum of the heights used once. ?h2 =the sum of the heights used twice. ?h3 =the sum of the heights used thrice. ......................................... .........................................

?h8 = the sum of height used eight times. A = area of each triangle. The total volume of the group is given by V=A/3(l?h1+2?h2+3?h3+4?h4+5?h5+6?h6+7?h7+8?h8)

powergrid measurement

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