soil investigation for provision of underground sump 50000 litres capacity at ins chilka , mobilization of tools & equipment from laboratory to site for conducting soil test with demobilization . , ( i ) boring of 100mm dia bore hole in soil strata and extraction of soil as may be decided by the engineer-in-charge from the sub-soil strata . bore hole depth 10m each . if the rock is met , bore hole depth shall be as per is specification . ( ii ) boring in hard and soft rock using tc/diamond bit and extracting rock cores of nx dia . ( iii ) conducting spt at location as directed in conformity in all respect and supply/results thereof within ( 1 . 0m to 1 . 5m interval ) . ( iv ) collection of ds ( v ) collection of uds . ( vi ) laboratory tests of ds/spt/uds samples . ( vii ) sieve analysis ( viii ) atterbergs limit ( ix ) specific gravity ( x ) dfs test ( xi ) field moisture content ( xii ) bulk density ( xiii ) shear test ( xiv ) preparation of rock core sample and compressive strength test rock . ( xv ) calculation of sbc and submission of test results complete in four copies .