Construction of 125 mm dia Machine Drilled Hand pump Wells in the college premises at Govt. Degree College, Pulwamma

Amount

Drilling of the hand pump well air rotary with drilling Rig unit suitable for lowering MS Casing of 125mm dia in suitably drilled bore hole as per specification laid down in IS 2800 (Part-I) with up to date amendments. The job is to be done in all kinds of soils, boulder, rocks collapsible strata, saturated soils, artisan conditions by ODEX/DTH attachments including the cost of all consumables, like fuel, lubricants and other accessories complete in all respects whole in consolidated/semi consolidated/boulder formation up to desired depth. The job also includes the cost of pipe materials, (MS 125mm) and lowering of casing assembly, and its subsequent welding after every ten feet, up to the drilled/desired depth. The casing is to be slotted as per the site requirement. The Job includes following activities and the items. Collection of soil samples. Power supply arrangement required during drilling etc. P/F of well cap as per IS code 2800 with latest/up to date amendments, till the bore hole well is hammered Recording the strata details in the Drilling Job card. Development of tube well with back wash method with air compressor of minimum capacity 1000 CFM (300 PSI air delivery system) with suitable arrangements till well is thoroughly developed in all respects as per the direction of in-charge Engineer.

PProviding and laying of circular cement concrete block of 1.5m dia and 0.3m (1 ft.) deep in a mix of 1:2:4 to give the adequate strength to act as a sanitary block for the well and to grout the hand pump assembly in order to make it robust to resist shock load observed while pumping. In case the suitable space for the above specification is not available, the surface area is to be adjusted according. The block comprises of a mud mat of 4 inch height and then laying of 8 inch cement concrete with suitable drainage. The block should have aesthetically good appearance.

Electrical Part: Providing, fitting and commissioning of Single Phase Submersible Type Pumping Unit along with allied jobs. Complete details of the job are as under. i) P/F/T and commissioning of single phase pumping equipment with following specifications: Discharge = 2500 lph Head = 80 Mtrs Speed = 2900 rpm Motor Rating = 02 HP Make = Kirloskar/Crompton The pump motor is coupled together with a steel coupling. The job includes lowering of the submersible pump equipment. It includes P/F of DOL Starter.

Providing and fitting of 32 mm dia GI Column pipe (Heavy Class). Pipe is properly threaded at both the ends and the length of each pipe should not exceed 03 Mtrs. The pipe is provided and fitted with GI Sockets for jointing purpose.

P/F of 05 KVA single phase Manual Voltage stabilizer, Oil immersed.

P/F of submersible cable 04 sq. mm, L&T/Havells make, connecting pumping unit with starter.

P/F of 5mm steel wire rope for holding sub type pumping unit.

P/F of 63 Amps D.P switch with 3 pin top. Make L&T/Havells. Job includes Providing and fixing of 3 ft x 3 ft Bakelite sheet of wall with necessary arrangements.

P/F of 40 mm dia MS holding clamps fabricated out of 10 mm thick MS Plate with nuts and bolts.

P/F of 11/2” x 1” dia Reducer (01 No.), 1 ¼” Nipple, 9” (01 No.), 1 ½” dia sockets (02 No’s), assorted nuts and bolts. Job also includes providing and fitting of 32mm dia GI Bends… 02 Nos. Job

M/S AH TUBE WELLS