PROVN OF BORE WELL FOR KLP OTM ACCN FOR CERTAIN TRG CENTRE UNDER GE PROJECT BANGALORE

Amount

Drilling bore hole of suitable dia with reverse rotary circulation or DTH method(Down the hole)/Rig type using power rig for housing of 150 mm nominl bore of the casing for the following depth :-

From ground level to 150 Mtr below ground level

From 150 Mtr but n.exc 200m from ground level

Note :- (i) Sample of strata shall be collected for every 3 Mtrs intervel or where ever is a change in strata and the sample shall be preserved in a suitable statra sample box (as directed and specified). The cost of strata sample box is deemed to be included in the unit rate. (iii) The result of drilling mentioning total depth drilled, casing length lowered, depth at which fractures encountered, their corresponding yields, total yield supported with a bore well chart shall be submitted by contractor to Eng-In-Charge after completion of the drilling. The cost for this is deemed to be included in the unit rate.

Supply, lowering and fixing in position 150mm nominal bore ERW heavy duty MS housing pipe of 6.00 mm wall thickness welded joints with MS ring around the pipes with MS flat iron 50mm x 6 mm complete all as directed.

Conducting yeild test with 'V"-notch for consecutive 3 days by providing suitable capacity of pumpset and fixing the optimum discharge. complete all as directed. Note:- The cost of fuel for the test is deemed to be included in the unit rate

Testing of water sample from bore well from Govt recognised laboratory or institute for chemical and biological analysis complete all as directed.

Supply and fixing GI pipe of size 50mm bore heavy grade including necessary GI fittings heavy grade along with all connected works like threading and lowering in bore wells as column pipe for pump sets complete all as directed.

Supply and connectinng PVC Insulated flexible flat 3 core submersible cable with copper conductors of size 6 sqmm from control panel near bore well to submersible pump set complete all as directed. Make :Standard Code: WSPNDSKB 3010 or equivalent in Havells/Finolex/BCH

Development of bore well with air compressor till sand/mud free portable quality water is obtained complete all as directed.

PCC 1:2:4 type B2 using 40 mm graded stone aggregate for curves/coping/bed places slightly rounded or chamfered angles including form work complete all as directed.

Earthing with earth plate electrode of size 60cm x 60cm x 6mm buried directly in ground vertically at a depth not less than 2.25m below normal ground level with top edge of earth plate at depth not less than 1.5m below normal ground level surrounded from all sides by 15cm thick packed layer of charcoal dust and common salt filling in alternate layers and electrode connected to and including earthing of GI strip 25x4 mm by means of bolts, nuts, check nuts and washers made of GI and protected by light grade 40mm dia GI pipe connected to main switch board or control board and GI pipe light grade 20mm dia for watering and including funnel, wire mesh, precast RCC pit cover 40mm thick in cement concrete 1:2:4, type B1 with 8mm dia MS reinforcement at 10cm centre to centre both ways and PCC chamber pit with PCC 1:3:6 type C1 including excavation and earth work, disposal of surplus soil to a distance not exc 50m all as specified and shown on plate No 3 of SSR Part I 2009 complete all as directed.

Supply, laying, Commissioning and testing LT cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 3.5 core 35 sqmm complete all as directed.

Supply and laying pipe galvanised medium grade of 50mm bore including all fittings in trenches complete all as directed.

Excavating in trenches, n.exc 1.5 m wide and n.exc 1.5 m in depth; for laying of UG cable/ GI pipe and getting out in soft/loose soil complete all as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm in Soft/ loose soil complete all as directed.

Removing excavated material to a distance n exc. 50 m and depositing where directed at a level n.exc 1.5 m above the starting point complete all as directed.

M& L for Sand filling in trenches for protection of UG cable complete all as directed.

Supplying and laying well burnt bricks old size sub class 'B' designation 75 complete all as directed.

Supply and fixing MCCB 63 Amps FP 25KA repturing capacity complete all as directed. Make: C & S, Cat No. CSE1M125ATM4P or equvalent make of Legrand/Schneider

N RAJEGOWDA and CO

B5BUILDING SOLUTIONS

Bidder Name

GS TRADERS

N RAJEGOWDA and CO

B5BUILDING SOLUTIONS