Soil investigation in respect of Provn Of Deficient Type-II Married Accommodation at New Mangalore

Soil investigation and recommendation of foundation including the following steps/specification of work. Mobilization & demobilization of workers and equipment at site. (i) Drilling of test borehole of 150mm dia by shell and auger with MS casing as per IS 1892-1979 (Reaffirmed 2016). The depth of borehole shall be done in soil strata upto the depth of 15 m or if rock is encountered before that depth, it should be penetrated into the rock to a depth of minimum 3 m and collecting disturbed and undisturbed soil samples (where ever possible) and observation of ground water table. (ii) Carrying out standard penetration test as per IS 2131-1981 (Reaffirmed 2002). The SPT is required to be taken at every 0.5 mtr interval upto 2.5 mtr from GL and 1 mtr interval onwards and at every change of strata. The test may be terminated earlier if 'N' value reaches 50 of every change of strata .The test may be terminated earlier if 'N' value reaches 50. (iii) Bore log data and details of soil profile showing stratification of soil at various depths and level of water table shall be furnished. Laboratory Investigation: Collection of disturbed/undisturbed sample as per NBC,IS1982,2131,2132,1888,2720,1904,6403,8009,1498,4968,AND SP 36 and carrying out laboratory test for the following :- (A) (a) Type of soil and its gradation, (b) Consistency limit (c') Natural water content, (d) Shear Test (e) Recommended gross and net SBC at diffeent depth of foundation at every 0.5 m intervel including calculation (f) Depth of water table maxm and minimum (g)depth of expansive soil and irs properties including swelling pressure (h) recommendation for type of foundation (j) recommendation for filling under floors (k) chemical analysis of soil and its recommendation for type cement tobe used

B) In order to determine the above properties the following test be conducted:- (a) Sieve analysis on the coarse grained soil fraction (b) Hydrometer analysis on the fine grained soil fraction (c') Liquid and plastic limits (d) Natural density and water content test, (e') Shear tests (f) Free swell index, (g) Specific gravity test, (h) Consolidation characteristics, (j) Mapping of soil propile etc. (C) Conducting plate load test as per IS 5249-1992 where necessary. (D) The result of the held investigation conducted in the bore holes and the laboratory investigations conducted on the soil sample collected from the bore holes be presented in the form of soil profile tables. For designing the foundation system of the proposed stuctures, the following data are require:- a) Type of foundation system (b) Depth below the groung level at which the foundation system be laid (c') Allowable bearing pressure Soil investigation report should contain a siteplan indicating borehole locations number vise with reference to proposed structures RL s of borehole location should also be indicated with all the photographic record of soil exploration .Also recommendation on possibility of liquifacation of soil. Report & Drawing shall be submitted in four copies to the GE for approval.

Excavation for trial pit (1.2m x 1.2m x 1.5m) to ascertain soil strata of the area & submit the detail report of existing strata with drawings. Note: Report & Drawing shall be submitted in four copies to the GE for approval. Payment shall be dispersed after approval of report & design

BHASKRAM JYOTISH ANUSANDHAN KENDRA