Construction of 21 Nos. Tube-well in Nurpur area in Tehsil Nurpur Distt.Kangra(HP) (SUB-HEADDrilling,lowering of Assembly and development of Tube-Well 140 Metres deep at Village Thora ).

Amount

Transportation of Rig along-with allied accessories etc.complete including erection and levelling at site through all kind of roads,approaches field etc.in all leads and lifts upto site of work complete in all respect as per the direction of the Engineer in charge.

Drilling of bore as per specifications laid down in IS-2800-1991(Part-I) with uptodate ammendments,if any;with Percussion Rig or combination drilling Rig starting with 650-600mm.dia M.S.Pipe reduced to 450-400mm.dia M.S.pipe confirming to IS-4270-2001 with uptodate ammendments,if any in all kinds of soils,boulders,rocks, collapsible strata,saturated soil, artesian conditions including the cost of all consumables,stores, water, fuel, lubricants and other accessories etc.complete in all respect as per the direction of the Engineer in charge..

Drilling and lowering of M.S.casing pipes 650-600mm.dia confirming to IS-4270-2001 with uptodate ammendments, if any of suitable sizes as mentioned above from 0 to 30 Metres below ground level within all leads and lifts as per the direction of the Engineer in charge.

Drilling and lowering of M.S.casing pipes 600-550mm.dia confirming to IS-4270-2001 with uptodate ammendments, if any of suitable sizes as mentioned above from 30 Metres to 60 Metres below ground level within all leads and lifts as per the direction of the Engineer in charge.

Drilling and lowering of M.S.casing pipes 550-500mm. Dia confirming to IS-4270-2001 with uptodate ammendments, if any of suitable sizes as mentioned above from 60 Metres to 90 Metres below ground level within all leads and lifts as per the direction of the Engineer in charge.

Drilling and lowering of M.S.casing pipes 500-450mm.dia confirming to IS-4270-2001 with uptodate amme dments if any of suitable sizes as mentioned above from 90 to 140 Metres below ground level within all leads and lifts as per the direction of the Engineer in charge.

Collection,preservations and display of suitable size sample box with top lid and locking arrangem,ent till handing over of the Tube-Well to the Department complete in all respect as per the direction of the Engineer in charge.

Supply and lowering of IS-Marked "Electric Resistance Welded Mild Blind Steel Pipe 300mm.nominal size housing, 8mm. thick having outside diametre 323.9mm.screwed and socketted confirming to IS-4270-2001 with uptodate ammendments, if any, about 4.00 Metres to 7.00 Metres in length,welded without any circumferential joints into bore hole in vertical position including cost of all scaffolding derricks, poles clamps embedded in foundation etc. including cost of all cuttings,threading and welding of pipes etc.within all leads and lifts as per the direction of the Engineer in charge.

Lowering at site electric resistance welded ( ERW) Stainless steel Cage type- V wire wound screens of size 300mm .8.00mm. Thick outer dia 322.00 load tensil 392.40 KN end ring 8.00mm . With slot opering 1.00mm as per IS -8110-2000 with uptodate ammendment ,it any and material specifications as sper"AISI " american,iron and Steel Inst" Type Grade SS - 304 in suitable lengths as sper conditions including the cost of SS socket 8mm . thickness of length 140mm ( Supply by the Department) confirmiing to AISI grade 304, suitable to accommodate screen and ring includiong jointing screen with blind pipe complete in all respect including scaffolholdings derrocks. poles ,clamps embendding in foundation etc.cost of all cuttings threading and welding of pipes etc. . within all leads and lifts complete in alll respect as per the directions of the Engineer-in Charge. Screen will be of continuoes trapexoidal wire spirally wound arround fabricated cage. The Wrapping wire having " V" shape (Wedge) profile wire with flat surface on the outside and producing expending slots on the inside of various dimensions, resistance welded to a cylindrical body made of number of longitudinal special high tensile support rods to provide smooth unrestricted bore which are interm welded into cylindrical ring couplings on both side of screens.( Note: The " V " wire screen of required size shall be supplied by the Deptt. free of cost against proper Indent.

Providing and fixing M.S.Taper/Reducer as per lengths approved by the Engineer-in-Charge. The material of M.S. taper/reducer shall be equivalent to prevent pipe material and shall conform to Chemical composition as per Clause-5.2 and Mechanical properties as per Clause-6.1 and Table-1 of IS:4270-2001 with uptodate ammendments, if any, complete in all respect s per the direction of the Engineer in charge.

Supply and lowering of IS-Marked Electric Resistance Welded Mild Blind Steel pipe 200mm.dia nominal size housing, 6.4mm.thick having outside diametre 219.1mm.screwed and socketted confirming to IS-4270-2001 with uptodate ammendments, if any, about 4.00 Metres to 7.00 Metres in length, welded without any circumferential joints into bore hole in vertical position including cost of all scaffolding derricks, poles, clamps embedded in foundation etc. including cost of all cuttings, threadings and welding of pipes etc.complete in all respect as per the direction of the Engineer in charge.

Lowering at site electric resistance welded ( ERW) Stainless steel Cage type- V wire wound screens of size 200mm .6.30mm. Thick outer dia 217.50 load tensile 186.39 KN end ring 7.00mm . With slot opening 1.00mm as per IS -8110-2000 with uptodate ammendments,if any and material specifications as sper"AISI " american,iron and Steel Inst" Type Grade SS - 304 in suitable lengths as conditions including the cost of SS socket 8mm . thickness of length 140mm ( Supply by the Department) confirming to AISI grade 304, suitable to accommodate screen and ring including jointing screen with blind pipe complete in all respect including cost of all scaffolholdings derricks. poles ,clamps emending in foundation etc. including cost of all cuttings threading and welding of pipes etc. . within all leads and lifts complete in all respect as per the directions of the Engineer-in Charge. Screen will be of continuous trapezoidal wire spirally wound around fabricated cage. The Wrapping wire having " V" shape (Wedge) profile wire with flat surface on the outside and producing expending slots on the inside of various dimensions, resistance welded to a cylindrical body made of number of longitudinal special high tensile support rods to provide smooth unrestricted bore which are interm welded into cylindrical ring couplings on both side of screens.( Note: The " V " wire screen of required size shall be supplied by the Deptt. free of cost against proper Indent.

Providing and fixing of M.S.centralized guides at suitable spacing for each Tube-Well as per IS-226-1991 with uptodate ammendments, if any within all leads and lifts complete in all respect as per the direction of the Engineer in charge.

Supply,lowering and fixing in position IS-Marked Mild Steel bail plug of 200mm/330mm. Diametres with 'U' hooks as per IS-2800-1991 with uptodate ammendments,if any within all leads and lifts complete in all respect as per the direction of the Engineer in charge.

Providing,fixing and lowering in position threaded iron cap with locking arrangements of approved design to prevent foreign matter from getting into bore hole as required complete in all respect as per the direction of the Engineer in charge.

Supply and packing of gravel consisting of hard quartz or other suitable material with an average specific gravity of not less than 2.5, not containing more than 2% by weight of thin flat or elangated pieces shall be of sub rounded to rounded grains with minimum angular features of size 2-3.35mm.shall be free from impurities such as; shafe,shale mica, feldspar, clay, sand, dirt loam hematite and organic materials as per IS-4097-1967 with uptodate ammendments, if any around intake of Tube-Well with minimum thickness of shroud around screen generally 100mm. to the entire depth of the bore as per IS-2800(Part-I):1991 with uptodate ammendments, if any, within all leads and lifts complete in all respect as per the direction of the Engineer in charge

Development of Tube-Well by backwashing method with Air Compressor of minimum 750CFM capacity Pumping pipe of 200mm. Size and Air line of minimum 65mm size or with other suitable method, till the Well is thoroughly developed as per Clause-4.2 of IS-11189:1985, with upto date ammendments, if any; complete in all respect as per the direction of the Engineer in charge.

Development of Tube-Well by continuous over Pumping method with V.T.Pumps/Submersible Pumps of suitable capacity not less than double the discharge established by the Compressor method/design discharge, untill the well sand free as per IS-11189:1985 with uptodate ammendments, if any; complete in all respect as per the directions of the Engineer-in-Charge. The draw-down and discharge to be established by running the VT/Submersible pump continuously for 8 Hours in the presence of the officer not less than the rank of the Assistant Engineer.

Testing the verticality of the Tube-Well as per Clause-4.3 of IS-2800(Part-II)-1979 with uptodate ammendments, if any, using plumb or plunger 6mm.smaller in dia within the inside diameter of the Well casing. The result of the verticality test shall be recorded on proforma shown in Appendix-A of IS:2800(Part-II)-1979 with uptodate ammendments, if any as appended with the tender documents and handed over complete in all respect as per the direction of the Engineer in charge.

Dismantling of Rig or other allied accessories after completion of job within all leads and lifts complete in all respect as per the direction of the Engineer in charge.

ABTAR SINGH AND COMPANY

NEW APSARA BOREWELL

M/S Sharma Enterpirses