SOIL INVESTIGATION FOR PROVISION OF DEFICIENT SINGLE LIVING ACCOMMODATION AND TRAINING INFRASTRUCTURE FOR TRAINEE SAILOR AT INS CHILKA (PHASE II)

Amount

Consulting detailed topographical survey at grid internal of 3m C/c which includes allocation of boundary , locating all the existing structures/services etc getting information about under ground cables sewer lines, fire control system etc. from various sources and compilation of available data at site. Note: Level sheet along with Contour drawing in proper scale should be submitted in A0 size paper along with soft copy

Mobilization of equipment to site for detailed soil investigation and shifting them location to location of boreholes and for in-situ tests

Boring holes 150mm dia in any type of soil including weathered rock, SDR and soft rock, but excluding hard rock/fractured rock upto a depth until hard rock/ fractured rock strata encountered including following activities:- (a) Conduct of SPT at every 1.5m interval or change of strata whichever occurs earlier. (b) Collection of undistrubed soil samples (UDS) at every 1.5m interval or change of starta whichever occurs earlier(a minimum gap of 500mm shall be ensured between SPT and collection of UDS). Note:- (i) Drilling in hard rock/fractrued rock shall be measured and paid under item No.3. here in afters (ii) In case of meeting boulders, the boring beyond boulder depth shall be measured under this item. (iii) In case of non-feasility of collection of undisturbed soil sample, disturbed soil sample shall be collected, duly recording the reasons.

Drill holes in hard rock/fractured rock using hydraulic drilling machine within the borehole for cutting cores in rock and collection of cores of requisite size and length as per relevant IS standards. Drilling shall continue till minimum 5m into hard rock starta or 10m depth whichever is more.

Conduct of following laboratory test as per relevant Indian Standards [see IS 2720(all parts), IS 1498 and IS 3025] on soil samples collected: (a) Test on disturbed/undisturbed soil samples: (i) Visual and engineering classification: (ii) Sieve analysis and hydrometer analysis: (iii) Atterberg's limit.(liquid limit, plastic limit and shrinkage limit): (iv) Specific gravity. (v) Free swell index (b) Test on undisturbed soil samples: (i) Bulk Density and moisture content. (ii) Unconfined compression test (on remoulded undisturbed sample): (iii) Swelling pressure (on undisturbed and remoulded sample): (iv) Determination of C & Ø values using Direct shear (drained/undrained) (On remoulded or undisturbed sample) or Triaxial compression test (on undistrubed or remouled sample). Or Vane shear test.

Conduct of following laboratory tests on rock samples/cores collected from boreholes as per relevant Indian Standards [ see IS 2720(all parts) and IS 1498, IS 9143, IS 13030,IS 9221,IS 8764, IS 9179, IS 10050,IS 10082,IS 10782,IS 12608,IS 13047,IS3025]: (i) Visual Classification; (ii) Density (iii) Specific gravity (iv) Hardness (v) Degree fo weathering (vi) Uniaxial compression test(both saturated and unsaturated. (vii) Point load strength index; (viii) RQD (Rock Quailty Designation) Note: (a) Item to be operated only in case of encountering rock in borehole with the writtern permission of GE. (b) This is complsory item for the cases where pile foundation is anticipated.

Chemical analysis of ground water sample collected at bottom of one boreholes.

Chemical analysis of soil samples one each from each strata in respect of one borehole. If different strata (s) encountered in any other borehole addition soils samples to be analysed

Conduct of plate load test to determine " Subgrade modulus" in accordance with IS 9214 at subgrade level and IS 1888 to determine (a) Bearing Capacity of the soil. (b)Type of foundation based on Safe Bearing Capacity. (c) Settlement corresponding to specific loading from load settlement curve.

S B ENGINNERING (BID ID -3454549)

BISWAS ENGINEERING (BID ID -3454487)

PRANTIK ASSOCIATES (BID ID -3454518)