JAIHIND PROJECTS LIMITED.
PROJECT: NTPC JHANORE GAS PIPELINE PROJECT.
PROCEDURE
FOR
EARTHWORK IN EXCAVATION
PROJECT
:PAGUTHAN-NTPCJHANORE PIPELINE
PROJECT.
DOCUMENT NO
: JPL/GSPL/PNJPL/WP/C01
CLIENT
: GUJARAT STATE PETRONET LTD.
CONSULTANT
: DORSCH CONSULT (INDIA) PVT. LTD.
TPIA
: BAXCOUNSCEL INSPECTION
BUREAU PVT. LTD.
CONTRACTOR
For
NAME
DESIGNATION
SIGNATURE
DATE
: JAIHIND PROJECTS LIMITED
JPL
BIBPL
DCIL
PREPARED BY
REVIEWED BY
CHECKED &
APPROVED BY
GSPL
APPROVED
BY
JAIHIND PROJECTS LIMITED.
PROJECT: NTPC JHANORE GAS PIPELINE PROJECT.
INDEX
SR.NO.
DESCRIPTION
PAGE NO
Purpose
03
Reference
03
Scope
03
Procedure
3-4
Tolerance
Health, Safety and Environment
Documentation
JAIHIND PROJECTS LIMITED.
PROJECT: NTPC JHANORE GAS PIPELINE PROJECT.
1.
PURPOSE
The Purpose of this procedure is to prepare the Methodology of Earthwork in
Excavation.
2.
REFERENCE
Tender Specification 1019 162 202 and drawing for work at civil Stations.
3.
SCOPE
This procedure covers the excavation required for permanent works, pits and
trenches for the foundation of structures, manholes, catch basins and trenches
for drainage pipes, utilities, ducts and cables.
4.0
PROCEDURE
Method described below will be followed for excavations required for
permanent works, foundations pits and trenches of structures and buildings,
pipes, ducts and cables in trenches around exiting structures.
4.1
Before taking up any work, spot levels with predetermined grids are to be
jointly checked and recorded with GSPL.
4.2
Erect transverse survey pillars and intermediate grid pillars with reference
to coordinates from the existing approved reference pillar and get it checked
by GSPL with drawings.
4.3
Ensure no under ground live cables / Pipes / drains are crossing in excavation
area. The necessary permission to start the work in the area of same has to
be taken. Any of U/G services should be identified prior to excavation by using
cable detectors and pilot trenches (Manual Excavation) to identify and protect
U/G services (Suitable Devices).
4.4
Area of construction shall be cleared of all materials including bushes, trees,
vegetation, obstruction and rubbish disposed to a suitable place as per
procedure of contract and instruction of GSPL.
4.5
Excavation for foundation pits shall be done as per drawings with sufficient
working space all round as per site requirement.
The side of excavation shall be cut in or shored and strutted to hold the face of
earth as per site.
4.6
JAIHIND PROJECTS LIMITED.
PROJECT: NTPC JHANORE GAS PIPELINE PROJECT.
4.7
Excavation shall be carried out up to required level as per specification and
drawing maintaining dimensions. If excavation has gone deeper then required
level, it shall be brought back to the required level by sand filling.
4.8
Excavation will be carried out with the help of suitable Excavators Trolleys will
be used for transport of Excavated earth.
4.9
Depending upon type of Excavated material, earth will be disposed of either in
spoil or will be used in backfilling purpose after getting approval from owners
representatives GSPL.
4.10
Excavated material shall be kept at safe distance from the edge of excavated
site.
4.11
Excavated area will be fully supported with the help of suitable/ required
supports like timber, steel trench sheeting etc. in order to prevent movement of
adjoining ground.
4.12
Guard railings and toe boards will be provided for safety purpose around
excavated area.
4.13
Suitable capacity Pumps will be installed for dewatering the excavated area. If
required and proper drainage arrangement will be made for disposing off the
water.
4.14
After completion of excavation, owners representative will be informed and
after approval only, further consideration activities will be started.
5.0
TOLERANCES
Will be followed as per tender specification, and construction drawings.
6.0
HEALTH, SAFETY AND ENVIRONMENT
1. Proper Barricading has to be done for excavation work.
2. PPE is a must in this activity.
7.0
DOCUMENTATION
JAIHIND PROJECTS LIMITED.
PROJECT: NTPC JHANORE GAS PIPELINE PROJECT.
Inspection Test Plan:
Inspection Report
JPL/GSPL/PNJPL/ ITP/C01
:
JPL/GSPL/PNJPL/IR/C01
Note:
Incase of any conflict between the requirements of this procedure and that of
the above referred specifications the requirements of the latter shall govern, until and
unless specification intention is meant.
For JPL
For BIBPL
For DCIL/ GSPL
Name:
Name:
Name:
Sign:
Sign:
Sign:
Date:
Date:
Date:
JAIHIND PROJECTS LIMITED.
PROJECT: NTPC JHANORE GAS PIPELINE PROJECT.
INSPECTION TEST PLAN
Owner
GUJARAT STATE PETRONET LTD.
Format: JPL/GSPL/PNJPL/ITP/C01
Consultant
DORSCH CONSUT (INDIA) PVT. LTD/
Revision : 0.0
TPIA
BAXCOUNSCEL INSPECTION BUREAU PVT. LTD.
Date:
Contractor
JAIHIND PROJECT LIMITED.
Project
PAGUTHAN NTPC JHANORE PIPELINE PROJECT.
Sr.
No
Activity Description
Frequency of
Insp./ Testing
JPL
TPIA
DCIL/
GSPL
Submission & Obtaining
approval of Procedure
At the
Beginning
AP
Marking of excavation
area & Lay out pit
At the
Beginning
W/RI
Details of Underground
utilities encountered
Before
Excavation
RI
RI
Taking of initial levels
For final
Layer
RI
RI
Excavation (LxBxD)
Each
Excavation
RI
RI
Safety, Barricading of
area, slope, stacking of
soil
REMARK
LIGEND :- p Perform
W Witness
RI Random Inspection
AP Approval
R - Review
For JPL
For TPIA
For DCIL/ GSPL
Name:
Name:
Name:
Sign:
Sign:
Sign:
Date:
Date:
Date:
JAIHIND PROJECTS LIMITED.
PROJECT: NTPC JHANORE GAS PIPELINE PROJECT.
INSPECTION REPORT EXCAVATION
Owner
:
Consultant
:
TPIA
:
Contractor
:
Project
:
GUJARAT STATE PETRONET LTD.
Format: JPL/GSPL/PNJPL/IR/C01
DORSCH CONSUT (INDIA) PVT. LTD/
Revision : 0.0
BAXCOUNSCEL INSPECTION BUREAU PVT. LTD.
Date:
JAIHIND PROJECT LIMITED.
PAGUTHAN NTPC JHANORE PIPELINE PROJECT.
Inspection Date :
Location:
Observation
Sr.
No
Activity Description
Layout of pit with reference to grid pillar and keeping
allowance, initial levels
Excavation is slope or steps as specification and
required and stacking of soil
Checking of subsoil water and providing shoring &
strutting is required Lowering of water table if
require
Dewatering & Dressing of pit
Final level of pit (Leave sheet to be attached)
Check for obstackles. (If any)
Remarks
Yes/Ok
For JPL
No
N/A
For TPIA
For DCIL / GSPL
Name:
Name:
Name:
Sign:
Sign:
Sign:
Date:
Date:
Date:
