Volume-II of IV - GAIL

MECON LIMITED
REGD. OFF : RANCHI (BIHAR)
Document6
PROCESS & PIPING
DESIGN SECTION
NEW DELHI
TITLE MAINLINE CONSTRUCTION
(ONSHORE)
6.5 Cutting and Removal of Paving
STANDARD SPECIFICATION
SPECIFICATION NO. PAGE 23 OF 53
MEC/S/05/62/01 REVISION A
Whenever it is permitted by Authorities and / or COMPANY to open cut a paved
road crossing, or where the line is routed within the road pavement,
CONTRACTOR shall remove the paving in accordance with the restrictions and
requirements of the authorities having jurisdiction thereof or as directed by
COMPANY. The open cut for the road crossing shall be carried out only when
the section of pipeline to be laid is complete. After laying the pipeline, backfilling
shall be immediately performed and all the area connected with the works shall
be temporarily restored.
Throughout the period of execution of such works, CONTRACTOR shall provide
and use warning signs, traffic lights or lanterns, barricades, fencing, watchman,
etc. as required by the local authorities having jurisdiction and/ or COMPANY.
For all roads, paths, walkway etc. which are open-cut, CONTRACTOR shall
provide temporary diversions properly constructed to allow the passage of
normal traffic with the minimum of inconvenience and interruptions.
The paving shall be restored to its original condition after the pipeline is installed.
6.6 Extra Depth and Clearance
At points where the contour of the earth way require extra depth to fit the
minimum radius of the bend as specified or to eliminate unnecessary bending of
the pipe according to customary good pipeline practice, or where a deep trench
is required at the approaches to crossings of roadways, railroads, rivers,
streams, drainage ditches, and the like, CONTRACTOR shall excavate such
additional depth as may be necessary at no extra cost to the COMPANY.
CONTRACTOR shall excavate to additional depth where the pipeline
approaches and crosses other pipelines, sewers, drain pipes, water mains,
telephone, conduits, and other underground structures, so that the pipeline may
be laid with at least 50 centimeters free clearance from the obstacle or as
specified in the drawings, or such greater minimum distances as may be
required by authorities having jurisdiction.