Providing and installing of 1 No tubewell against failure tubewell UHBVN Office at Naraingarh Town of Tehsil Naraingarh Distt Ambala

Amount

Drilling of 609.60 mm dia bore by hydraulic rotary drilling (Reverse Circulation method) according to ISI specification No. 2800-1991 (Part-I) and IS No. 2800-1979 (Part-II) as amended upto date and modified to extent of the specification attached with this schedule of items of work in all kinds of soils and boulders upto 125mm dia except rocky strata including the cost of all consumable stores, fuel, oil soil stabilizing material and transportation of rig and other accessories to the site of proposed bore and extracting the same against earth frictions etc. complete in satisfaction of the Engineer-In-Charge.

Providing, fixing & lowering of 273.10 mm i/d dia ERW steel pipes as per IS 4270/2001 as amended upto date, duty ISI marked for casing pipe in 4 to 7 meters random length manufactured out of 8 mm thick MS plates with required number of M.S socket 177.80mm length with inside thread to pmatch the pipe threads and made out of MS plate in to borehole in vertical position including cost of all scaffolding, derricks, Jim, poles, tools and plants, ropes gays MS clamp embedded in foundation etc. complete in all respects to the satisfaction of the Engineer-in-charge of the work including cost of all cutting, threading of pipe where required and all sockets. The pipes shall be painted with anti-corrosive paints and covered tightly polythene.10” i/d M.S. Pipe.

Providing, fixing and lowering of 219.10 mm outer dia ERW steel pipes as per IS 4270/ 2001 as amended upto date duly ISI marked for housing pipe in 4 to 7 meters random length manufactured out of 6.4 mm M.S plates with required number of M.S socket 177.80mm with inside thread to match the pipe threads and made out of M.S plate in to borehole in vertical position, including cost of all scaffolding, derricks, Jim, poles, tools and plants, ropes, gays M.S clamp embedded in foundation etc. complete in all respects to the satisfaction of the Engineer-in-charge of the work including cost of all cutting, threading of pipe where required and all sockets. The pipe shall be painted with anti corrosive paint & covered tightly with polythene. 8” i/d M.S. Pipe.

Labour for fixing and lowering 200mm i/d ISI marked ERW Stainless Screen cage type Vee wire wound Screen as per IS 8110:2000 with latest amendments if any. (200 x 8.00 x 0.50 mm). )(supplied by the Deptt.)

Providing & fixing of M.S. bail plug end cap.

Providing & fixing of Center Guides. (ii) 250mm ø (1 x 3 = 3 Nos.)

Providing & fixing of Center Guides. (ii) 200mm ø (1 x 3 = 3 Nos.)

Providing & fixing of M.S. cap 250mm ø.

Providing & fixing of M.S. Reducing socket 250mm ø x 200mm ø.

Supplying & packing of Pea Gravel (A-Grade) for use as pack in tubewells size of over 2.00mm to 3.35mm with uniformity coefficient Not to exceed 2.00. The Gravel should be confirming To requirement of ISI, 4097-1967 regarding its physical Characteristic quarry at Panchkula/Chandi Mandir.

Providing clay seal of thickness 4.0mm or above consisting of balls of local lay or bentonite mud to be placed in the annular space around the assembly the clay seal should be provided at a level of minimum 25.00m above the top most screens depending onthe logging result.

Development of tubewell with Air Compressor having capacity 250 PSI 450 CFM according to clause 9.3 of IS: 2800 - 1991 (Part-I) as amended upto date and specifications attached and as directed by the Engineer-in-Charge of the work including the cost of all consumable stores, fuel, oil, compressors and machinery etc. as required for this work. (1 x 10 = 10 Hrs.) Developed by Air Compressor of 250 PSI 450 CFM.

Electric logging of Tubewell

Dashmesh Engineers