Pashchimanchal Vidyut Vitran Nigam Limited Tender

Making borehole in all type of soil by any method required as per site conditions in accordance with IS specification No 1982-1979 and 1498-1970 and conducting standard penetration test in accordance with IS specification No 2131 – 1981 at every 1.5 M approx . or as per strata during making borehole and also collecting undisturbed and disturbed soil samples at a depth of approx. 1.5 M depth or change of strata of soil as per site requirements in each borehole in accordance with IS specification 1892-1978. (Depth of water table as detemine from borehole or from nearest waterwell ) Each Boreholes to be bored upto 30.00 depth.

Undisturbed soil samples collected in field will be tested in Laboratory and preparation of samples for tests mentioned below, will be done/governed in accordance with IS 2720 (Part 1)-1983 i) Tri axial compression test and determination of shear parameters(c & ) as per ISS –2720 (Part ix) ISS 2720-(Part xii) ISS 2720-(Part xiii) on silty/sandy soil .OR Consolidation Test as per ISS-2720( Part xv )on clay soil ii) Sieve analysis test as per ISS 2720 (Part iv) iii) Atterberg’s limit tests as per ISS –2720 (Part v) iv) Particle size analysis test as per ISS 2720 (Part iv) v)             Natural moisture content test as per ISS 2720 (Part vi) vi)Wet density test and dry density test as per ISS 2720 (Part vi) vii)           Specific gravity test as per ISS 2720 (Part iii) section 2 Disturbed soil samples will be prepared in accordance with ISS 2720 (Part I) 1983 and tested as follows i) Sieve analysis test as per ISS – 2720 (part iv) ii) Atterberg’s limit tests as per ISS- 2720(Part v)

Submission of five copies of test report with detailed description for filed investigation, soil classification and general natural of soil strata, water table found in the bore hole, interprotation of test result, S.P.T. charts, laboratory test results, grain size distribution curves, compressive index curves, site plan showing location of the bore holes etc. calculation of bearing capacity will be governed generally as per I.S. 8009-(Part-I)-1976, I.S. 2720-(Part-II)-1980, I.S. 6403 1981, I.S. 1904-1978 and I.S. 1080-1986 and other relevant I.S. codes and general assessment and latest development foundations recommendation regarding allowable dearing capacity at different depths and width of footing and expertise suggestions if necessary in accordance with site conditions.