PURANE PHED TUBEWELL KE PASS NAYA TUBEWELL KHUDAI KARY SCHOOL KE PASS BARSINGHSAR

Construction of Tube Well from ground level and upto 100 mtr. depth and above to accommodate housing and assembly pipe in all type of alluvium strata, unconsolidated formation such as pebbles, boulders etc. by percussion/ rotary drilling method as per IS:2800 (part 1 & 2) 1979 as amended up to date. The work will include cost of lowering of housing, strainer assembly pipes, with supply and wrapping of coir rope, wherever necessary and development of tube well as per IS specification using suitable Air Compressor but will not include cost of casing & strainer pipe. Work will be completed after obtaining sand free water. Nominal bore 250 mm dia.

Add 15% extra on above item (Item no 2.1.1 to 2.1.3) for drilling depth beyond 100 mtr and upto 200 mtr, rate shall be applicable for only extra depth beyond 100 mtr and up to 200 mtr.

Add 40% extra on above item (Item no 2.1.1 to 2.1.3) for drilling depth beyond 200 mtr, rate shall be applicable for only extra depth beyond 200 mtr .

Testing verticality of tube well by plumbing system and yield test and draw down test by pumping system as per IS : 2800 (Part – II) – 1979 as amended up to date.

Developemtn of tube well as per IS 11189-1985 and (IS: 2800 (part-1) 1991(both amended up to date) using suitable compressor to give sand free water for required vield of the gravel packed tube well

Supply of ERW M.S. black casing pipe ISI marked (IS: 4270/2001) or amended up to date of grade Fe 410 of following sizes 250 mm dia NB (Thicknee of pipe 7.1 mm & mass of tube 46.57 Kg/m)

Labour charges for making slots on blank pipes made of ERW MS black pipe ISI marked of following sizes, the slotting should be as per IS:8110-1985. 250 mm dia nominal bore of 7.1mm thickness

Ded 10 % pf phed bsr