PROVN OF ARTIFICIAL RECHARGE STRUCTURE FOR RAIN WATER HARVESTING NEAR BLDG NO P-22 BLOCK AND 531 OR PROVN OF HARDSTANDING AND INTERLOCKING PATH ADDN ALTN TO ENTRANCE PORCH OF DRONACHARYA OFFR MESS AT ASC CENTRE AND COLLEGE UNDER GE (C) BANGALORE

M&L for trial bore of 50 mm dia upto 60 mtr depth below the ground level in any type of soil strata including electric logging, MS Cap, MS flat iron clamps, reducing socket etc complete all as specfified and directed.

M&L for reaming of bore hole upto 525mm from depth exceeding 60 mtr to 200 mtr and including provision of casing MS pipe of 150 mm dia with a wall thickness of 6mm, followed by pea gravel ( 3mm to 6mm size) packing as filter media in the annular space between the casing and the reamed wall complete all as specified and directed

Excavation over areas n.exc. 1.5 mtr in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc., and and getting out in hard /dense soil complete all as specified and directed

Excavation over areas exc. 1.5 mtr but n.exc. 3.00 mtr in in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc., and getting out in hard/ dense soil complete all as specified and directed

M&L for walling of random rubble, uncoursed, well bonded laid dry in retaing wall, abutments and similar work complete all as specfied and directed.

S&F for precast RCC Collar rings NP-3, 1.5m dia, 50mm thick, each ring of height 0.45m having weep holes from the side of the ring laying in excavated tranches for soak pit or rain water harvesting percolation pit of any depth complete all as specified and directed Note: Excavation and filling will be measured and paid sepratly

M&L for loose filling with broken stone or boulder aggregates of gauge 80 to 150mm size in bore well recharge well complete all as specified and directed

M&L for loose filling with broken stone or boulder aggregates of gauge 40 to 80mm size in bore well recharge well complete all as specified and directed