Providing WSS to newly created Industrial area at Chanour (Phase-II) in Tehsil Dadasiba District Kangra HP (Industry Deposit)

Amount

Transportations of rig along with allied accessories complete including errection and leveling at site, through all kinds of roads, approaches fields of roads, approaches fields etd. In all leads and lifts completed in all respect as per the direction of Engineer-in-charge.

Earth work in foundation for digging tube well in all kind of soil including dewatering shoring shuttering from ground level up to 5 meter including disposing excavated soil within all leads and lifts as per the direction of Engineer-in-charge.

Drilling of bore as per specification laid down in IS 2800-1991 (Part-1) with upto date amendments, if any with rotory rig or combination drilling rig starting with 650-600 milimetre dia mild steel pipe reduced to 550 to 500 milimetre dia mild steel pipe conforming to IS-4270-2001 with upto date amendments, if any in all kinds of soils, boulders rock collapsible strata, saturated soils, artesian conditions including the cost of all consumable stores, water fuel, lubricants and other accessories etc. with in all leads and lift completed in all respect as per the direction of Engineer-in-charge.

Drilling and lowering of mild steel casing pipes 550-500 conforming to IS 4270-2001 with upto date amendemnts if any of suitable size as mentioned above, from 5-30 below ground level within all lead and lifts.

Drilling and lowering of mild steel casing pipes 500-450 conforming to IS 4270-2001 with upto date amendemnts if any of suitable size as mentioned above, from 30-60 below ground level within all lead and lifts.

Drilling and lowering of mild steel casing pipes 450-400 conforming to IS 4270-2001 with upto date amendemnts if any of suitable size as mentioned above, from 60-90 below ground level within all lead and lifts.

Drilling and lowering of mild steel casing pipes 400-300 conforming to IS 4270-2001 with upto date amendemnts if any of suitable size as mentioned above, from 90-125 below ground level within all lead and lifts.

Collection preservation and display of suitable size sample box with top lid and J locking arrangement till handing over of the tube well to the department complete in all respect as per the direction of Engineer-in-charge.

Providing and fixing mild steel taper/retucer as per lengths approved by the Engineer-in-charge the material of mild steel taper/reducer shall be equivalent to parent 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 upto date amendments, if any complete in all respect as per the direction of Engineer-in-charge.

Supplying and lowering of IS marked electric resistance welded mild steel pipe 200 milimetre dia nominal size housing 6.40milimetre thick having out side dia metre 219.10 milimetre screwed and socketted conforming to IS-4270-2001 with upto date amendments if any about 4 metre to 7 metre in length welded without any circumferential joints into bore hole in vertical position including cost of all scaffolding derricts,poles,clamps embeded in foundation etc. including cost of all cutting, threading and welding of pipes etc. within all leads and lifts as per the direction of Engineer-in-charge.

Supply and lowering IS marked electric resistance welded mild steel slotted pipe 200 milimetre dia nominal size housing 6.40mlimetre thick having out side dia metre 219.10 milimetrewith screwed & socketted conforming to IS-4270-2001 slot size 1.57x0.75 mm welded with upto date amendments if any about 4 metre to 7 metre in length welded without any circumferential joints into bore hole in vertical position including cost of all scaffolding derricks, poles, clamps embeded in foundation etc. including cost of all cutting, threading and welding of pipes etc. within all leads and lifts as per the direction of Engineer-in-charge.

Providing and fixing mild steel centralized guides at suitable spacing for each tube well as per IS-225-1991 with upto date amendments, if any within all leads and lift 1x4 numbers complete in all respect of the Engineer-in-charge.

Supplying lowering and fixing in position IS marked mild steel bail plug of 200 milimetre/300 milimetre diameters with "U" hooks as per IS 2800-1991 with upto date ammenments, if any within all leads and lifts complete in all respect as per the direction of the Engineer-in-charge.

Providing and fixing in position threaded iron cap with locking arrangement of approved design to prevent foreign matter from getting into bore holes as required, within all leads and lifts complete in all respects as per the direction of the Engineer-in-charge.

Supplying and packing of gravel, consisting of hard quartz or other suitable material within an average specific gravity of not less than 2.5 not containing more than 2% by weight of thin flat of elongated pieces, shall be of sub rounded to rounded grains with minimum angular features, of size 2-3.35 milimetre shall be free from impurities such as safe, shale, Mica, feldspar, clay, sand, dirt loam, baematte and organic material as per IS-4097-1967 with up to date amendments, if any around intake of tube well with minmum thickness of should screen generally 100 milimetre to the entire depth of the bore as per 2800- (Part-1) 1991 with up to date amendments, if any with in all leads and lift completed in all respect as per the direction of Engineer-in-charge.

Extraction of all sizes blind casing pipes with machine starting iron, the bottom of the bore hold, with in all leads and lift completed in all respect as per the direction of Engineer-in-charge. a) In contact with soil

Frely hanging.

Development of tube well by back washing method with air compressor of minimum 750 CFM capacity pumping pipe of 200 milimetre size and air line of minimum 65mm size of with other suitable method, till the well is thoroughly developed as per clausc 4.2 of IS 11189-1985 with up to date amendment, if any, complete in all respect as per direction of the Engineer-in-charge.

Development of tube well by continuous over pumping method with VT pump/submersible pumps of suitable capacity not less than double the discharge established by the comprossor method/design discharge, until the wells is stand free as per IS-11189-1985 upto date amendments if any cineaste respect as per direction of the Engineer-in-charge. The draw down in all and discharge to be established by running the VT/submersible pump continuously for 8 hours in the presence of officer not less than the rank of Assistant Engineer.

Testing the vertically of the tube well as per clause 4.3 of IS 2800 (Part-II) 1979 with upto date amendments if any using plumb or plunger 6mm smaller in dia within the inside diameter of the well casing. The results, of the verticality test shall be recorded on proforma shown in appendix "a" of IS 2800(Part-II) 1979 with upto date ammenments, if any as rammed with the tender documents 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 complete in all respect within all leads and lifts as per the direction of Engineer-in-charge.

Construction of barbed wire enclosure of minimum of size 2.5x2.5 milimetre to safe guard the bore of tube well with angle iron off size 40x40x6 milimetre 1.5 metre in height embedded in concrete block of 30x30x30 centimetre complete in all respect within all leads and lifts as per the direction of Enginee-in-charge.

Handing over of the tube well in concrete safe as per appendix "B" of the Clause-7 of IS-2800 (Part-II) 1979 with upto date amendments if any, as appended with the tender documents in laminated from in triplicate complete in all respect within all leads and lifts as per the direction of Engineer-in-charge.

Providing and fixing tripod stand with chain pully complete in all respect within all leads and lifts as per the direction of Enginee-in-charge.

NEW APSARA BOREWELL