consultancy for soil investigation in respect of provision of high security wall with concertina coil and storm drain at icgs ratnagiri under ge ( i ) cg ratnagiri , 1 . soil investigation work for high security wall with concertina coil and storm drain at ratnagiri :- ( a ) drilling 100 mm dia bore hole in soil and nx size ( 75 mm ) dia in rock up to a depth of 6 m from gl including conducting spt , collection of disturbed/undisturbed soil samples as well as rock core samples at various depth from gl as directed as per relevent is code . ( b ) submission of soil investigation report in quardruplicate consists introduction & object of investigation scope of work & project details , field tests , suggestion for improvment of sbc , if any settlement criteria/calculation incorporating type of soil in pressure bulb zone highest water table sbc recommendation at particular depth considering water table type of foundation to be adopted all test result bore log chart profile of log and safe bearing capacity calculations at various depths ( ser a & b one job only ) . [total number of bore holes = 21 nos . ]