Borewell & Tubewell Works Tender Results

Drilling of 125 mm diameter tube well by air rotary drilling rig unit suitable for lowering of MS casing of 125mm diameter in suitably drilled bore hole as per specifications laid down in IS 2800 (Part-I) with up-to-date amendments. The job is to be done in all kinds of soils, boulder, rocks, collapsible strata, saturated soils, artisan conditions by (ODEX/DTH/Air Rotray) and exploration of Ground water by tapping sufficient aquifer zones. The job includes the cost shifting of drilling accessories, tools, bits, casing shoe, consumables like fuel, lubricants, skilled and unskilled labours and other unforeseen items. Development of tube well with backwash method with air compressor of minimum capacity 1000 CFM (300 PSI air delivery system) with suitable arrangements till well is thoroughly developed in all respects as per the directions of site engineer.

Drilling tube well of 200 milimetre dia as per IS 2800-1979 using percussion/Calyx/RC/ODEX method required for drilling in collapsible strata conglomerate, boulders, pebbles, sand gravels, silt, clay etc. including cost of attachements, extra casings, consumables stores, bits, water, POL, gravel pack in a space etc. complete in all respect as per the direction of Engineer-in-charge.