Transmission Corporation Of Andhra Pradesh Limited Tender

Site investigation for locating bore well point

Drilling of Borewell by Down The Hole (DTH) hammer drilling to a finished dia of 165mm dia in all formations suitable for down the hole hammer drilling such as medium hard rock formation to hard rock formation, all consolidated formation etc., and drilling in overburden to dia not less than 200mm etc and reaming the borewell to suit insertion of suitable Casing pipe etc., including insetion of casing pipe with couplings, caps and any other relavent materials upto required depth as directed by the department including transporatation of drilling rigs and supporting vehicle and including bore development (Flushing of Borewell at an average pressure of 150 PSI) conducting yield test, consumable charges, crew charges required for fixation of pipe assembly completely done to the satisfaction of the department and including all albour charges , but excluding the cost of casing pipe, couplings, cap etc., the entire work should be carried out as per IS-2800 part I & II 1979 and amended time to time Drilling of Bore well 165 mm dia. up to 90.00 m depth vide per DTH Rig S.No: 1 of Table 38, for Bore well Drilling rates of PH SOR )

Supplying & fixing of PVC heavy duty casing pipe of 180 mm dia, 10kg/sqcm for the above Bore hole including cost & conveyance of all materials ,labour ,leads, and lifts complete as per the directions of the Engineer in charge for the finished item of work