Volume-II of IV - GAIL

MECON LIMITED
REGD. OFF : RANCHI (BIHAR)
Document6
PROCESS & PIPING
DESIGN SECTION
NEW DELHI
TITLE MAINLINE CONSTRUCTION
(ONSHORE)
STANDARD SPECIFICATION
SPECIFICATION NO. PAGE 50 OF 53
MEC/S/05/62/01 REVISION A
14.14 In crop fields the tillage shall consist of passing over the land several times with
a disc harrow, cultivating with a spading machine, or plow, to a depth of approx.
20 cm. In general the ROW has also to be ripped. After this cultivation process
no closed-in layers must be found in the ROW. The equipment used and
methods adopted shall require the approval of COMPANY. Ripping, has to be
done with rippers with a distance of 50 cm between the ripper blades. The type
to be used shall be approved by COMPANY.
14.15 A sapling of any plant/tree uprooted or cut during construction shall be planted
along the route as per the direction of the COMPANY and in accordance with
the Forest Preservation Act, 1981. The cost of sapling and its plantation shall be
to CONTRACTOR's account.
14.16 The ROW and the backfilled trench in particular has to be finished in such a way
that after settlement of the soil the fields are at their original level.
If during the maintenance period certain parts of the ROW are lower than the
original level, COMPANY can order CONTRACTOR to bring these parts to the
original level. If the level of the ROW for clean-up is ordered by COMPANY, risk
of above mentioned additional restoration shall not be to CONTRACTOR's
account.
In cases where heavy damage has occurred to the structure of the subsoil as a
result of special circumstances, COMPANY reserves the right to order
CONTRACTOR to carry out special work. Said special work can include:
- spading with dragline (depth 30 - 80 cm);
- spading with dragline (depth 80 - 100 cm);
- fertilizing;
- cover with sand.
If during clean-up operations, soil shortages become apparent outside the
trench, CONTRACTOR shall supplement said soil shortage using suitable
materials, approved by COMPANY.