Construction of 10 Nos 7 Nos tube well in Bharoli and Jawalamukhi area in tehsil Jawalamukhi

Amount

Transportations of percussion 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 complete in all respect as per the direction of Engineer-in-charge.

Earth work in foundation for digging T / well in all kinds of soils including dewatering, shoring, struting from GL upto 5 mtrs. including disposing excavated soil in all leads and lifts completein all respect as per the dirctions of Engineer-in-Charge. 0 - 5 mtrs.

Drilling of bore as per specification laid down in IS 2800-1991 (Part-1) with upto date amendments, if any with percusion rig or combination drilling rig starting with 650-600 milimetre dia mild steel pipe reduced to 600 to 550 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 mm dia 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 mm dia 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.

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 300 milimetre dia nominal size housing 6.4 milimetre thick having out side dia metre 323.90 milimetre bevelled edge 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 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.

Supply and lowering IS marked electric resistance welded mild steel slotted pipe 300 milimetre dia nominal size housing 6.40 milimetre thick having out side dia metre 323.90 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 do 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.

In contact with soil.

Freely handing.

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 VI 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 Verticality of theTube-Well as per Clause-4.3 of IS-2800(Part-II) 1979 with uptodate ammendments,if any,using pumps or plumer 6mm smaller in dia within the inside diameter of the Well casing the result of the verticality test shall be recorded on performa 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 directions of the Engineer-In-Charge.

Dismentalling of Rig or other allied,accessories after completion of job within all leads & lifts complete in all respects as per directions of the Engineer-In-Charge.

Construction of barbed wire enclosure of minimum of size 2.5mx2.5m to safe guard the bore of Tube Well with angle iron of size 40x40x6mm 1.5m in height, embedded in concrete block of 30x30x30cm in all leads and lifts complete in all respect as per the concrete block of 30x30x30cm in all leads and lifts complete in all respect as per the direction of the Engineer-in-Charge.

Handing over of the Tube-Well in complete shape as per appendix-B of the Clause-7 of IS-2800 (Part-II):1979 with uptodate ammendments,if any,as appended with the tender documents in laminated form,in triplicate complete in all respects as per the direction of the Engineer-in-Charge.

Providing and fixing tripod stand with chain pulley complete in all respect as per entire satisfaction of Engineer-in-charge.

PRAGATI TOWERS CORPORATION

vats associates

JASPREET SINGH