Tender For Providing Deep Borewell At Vannara Street In Melattur Town Panchayat., Thanjavur-Tamil Nadu

Tender For Providing Deep Borewell At Vannara Street In Melattur Town Panchayat.; 1 Drilling of Borewells anywhere in Tamilnadu including transportation from one place to another with in Tamilnadu in alluvial soil sedimentary strata of clay and M Sand stone shale pebbles boulders etc.By first taking a pilot bore of 140 mm/150mm dia and then enlarging to required dia direct or reverse rotary mud circulation method using rotary rigs, fuel, labour and drilling bentonite and water required for drilling at site ( Site will be shown by theOfficers) including construction of mud pit. 2 Pilot Bore upto 60 m depth ending below ground level. 3 Pilot Bore 60 m to 90 m depth ending below ground level. 4 Reaming140/150 mm dia pilot bore to 300mm dia bore as directed by the Officer. upto 60 m Depth ending from ground level 5 Upto 60m 6 60m - 90 m 7 Supply of the following casing pipes of ISI approved quality with wall thickness not less than 7.5mm to 8.5mm with PVC couplers and cement Paste etc. Complete and including packing the annular space with pebbles quality and size of pebbles and the PVC pipe should be approved by the departmental officer. 8 200mm dia PVC Plain(CM) 9 200mm diaPVC slot(RS) 10 200mm diaOD PVC end cap 11 Labour Charges for inserting PVC casing pipes assembly (with slots or without slots) in the drilled hole including the jointing the pipes with PVC couplers with cement paste etc. complete 12 Charges for developing the borewell with air compressor of 600CFM. Capacity (minimum 8 hours )including transportation labour and fuel charges for compressor as directed by the Departmental Officers and conducting yield test by V notch methods. 13 Supply and fixing of GI, PVC pipe and specials including cost and conveyance of all materials and labour charges etc complete as per standard specification. 14 UPVC 50mm pipe 15 GI PIPE -50mm 16 GI-50mmBend 17 GI -50 mm Union 18 GI-50mm Flange set 19 GM Valve -50mm 20 PVC 90mm Pipe 21 PVC 90mm FTA 22 PVC 90mm TEE 23 PVC 90mm Bend 24 PVC 90mm Coupler 25 Earth work excavation in all types of strata for laying of pipes with the stanard trench width as per Board circular No.28/AE10/P&D /2001/dt 1.10.2001 & JCE (P&D) Lr.No.LM/AE 10/P&D/2001/Dt.22.11.2001 26 GI 50mm Pipe 27 PVC 90mm Pipe 28 Conveying thepipes and specials to trench, lowering into the trenches, laying to proper grade and alignment, jointing with PVC coupler and specials fixing with neat cement paste and testing to the required pressure as per IS including conveyance of water from 1Km lead for filling during testing. 29 GI 50mm Pipe 30 PVC 90mm Pipe 31 Refilling with excavated soil complying with standard specification in layers of 15cm thick well rammed and consolidated after the pipes and specials are laid and tested 32 GI 50mm Pipe 33 PVC 90mm Pipe

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