Name of Work : Construction of bore-well for Solar Panghats under PHED, Sub Division Kherwara District Udaipur
Sl. No.
Item Description
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Construction of Tube Well up to 100 mtr. depthin all type of rocks by DTH system & over burden to accommodate casing pipe of following sizes in all type of soils & over burden including lowering of casing pipes, (if required) excluding cost of casing pipes, as per IS:2800 Part 1: 1991 andIS:2800 Part II: 1979 (both amended upto date) and technical specifications. The work would be completed after obtaining sand free water. The tube well should have a throughout bore as per nominal dia of casing pipe.
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Nominal bore 125 mm dia.
3
Nominal bore 150 mm dia.
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Add 15% extra on above itemfor drilling depth beyond 100 mtr and up to 200 mtr from ground level, rate shall be applicable for only extra depth beyond 100 mtr and up to 200 mtr.
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Nominal bore 125 mm dia.
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Nominal bore 150 mm dia.
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Supply ofM.S. black casing pipe ISI marked as per IS: 1239 (part 1: 2004) or amended up to date offollowing sizes:
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125 mm dia NB( Thickness of pipe 4.8 mm & mass of tube 16.40 Kg/m)
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150 mm dia NB(Thickness of pipe 5.0 mm & mass of tube 20.13 Kg/m)
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Supply & Fixing tube well coverof MS sheet 8mm thick at top & 5mm thick 100mm wide shroud around the edge so as to form a cap on the top end of casing pipe with GI Nipple 45cm long & two GI flanges at both ends in 80mm sizes passing through a hole in the centre of MS sheet. A 25 mm socket with end plug shall also be welded over top plate. A GI nipple having outside thread of size 1/2\" (for installation pressure gauge) shall be provided & welded with 80mm GI nipple near top plate nipple shall be provided with end plug.
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