Soil testing for provn of perimeter road, light and Qty-04

Amount

Drilling of 150 mm diameter bore hole in all types of soils as per depth indicated below or refusal strata which ever is earlier as per instructions of the Engineer In Charge. Refusal defined as and when ‘N’ value is 100 or more for 30 cm or part penetration.

A. Conducting standard penetration test (SPT) in the boreholes at 1.0m intervals in depth or every change of strata which ever is earlier as per IS 2131-1981. (or)

Conducting Dynamic Cone penetration test (DCPT) in the boreholes at 1.0m intervals in depth or every change of strata which ever is earlier as per IS 10042-1981 (Applicable for Gravel, boulder deposit type of soil).

For Depth up to 6.0 Mtr (For security wall)

For Depth up to 10 Mtr (For small Bldgs with shallow foundation)

For Depth up to 15 Mtr (for hangers)

For Depth up to 20 Mtr (For Deep foundations)

Collecting disturbed soil sample from the location of conducting the SPT/ DCPT.

Collecting undisturbed samples at 1.50m intervals or change of strata which ever occurs earlier.

Analysis for liquefaction potential for Earthquake as per Zone – IV of IS: 1893-2016 (Part –1)

Recording the Ground Water Table if observed upto exploration depth, as per IS : 6395:1973.

Conducting all necessary laboratory tests on samples collected for their different engineering properties. Following tests will be carried out: Dry density and moisture content (IS 2720 part – 2 & 29) Atterberg’s limit – (IS 2720 part – 5 1985) Particle size analysis – (IS 2720 part – 4 1985) &IS classification of the soil. Specific gravity – (IS 2720 part – 3/sec 2 1980) Consolidation test – (IS 2720 part – 15 1986) and compressed value index. Free swell and Swell pressure test – (IS 2720 part – 40 1977, part – 41 1977) Bulk Density. Organic matter in soil if any. Triaxial compression test and determination of (C& ϕ value) shear parameters as per relevant IS. Harmful salt.

Submission of Six copies of ink signed test reports. The report should include the following:-

Detailed description of field investigation, soil classification and general nature of soil strata, water table, interpretation of test results; grains size distribution curves, compressive index curves, site plan etc, stress-strain modulus (by stress-strain curves from triaxial tests), Foundation analysis & recommendations with supporting calculations regarding foundation system, depth of foundation.

The SBC of the soil is required to be given as per following table, calculation of bearing capacity will be governed generally as per IS 8009(Pt-I) 1976, IS 2720 (P-II) 1980, IS 6403-1980,IS 1904-1986 & 1080-1985 and other relevant IS codes and detailed calculations duly showing the various soil parameters /indices shall be given in the soil report:-Depth of foundation Safe bearing capacity of soil in T/M2 for footing size Remarks Strip footing 1.2m x 1.2m 1.5 m x 1.5m 2m x 2m 2.5m x 2.5m 1m 1.5m 2.0m 2.5m

Plotting of a compiled sub-surface profile along the depth in both plan directions.

Excavation /drilling of 150mm dia bore holes, supplement with penetration test (SPT) upto 2.40 m depth or depth of refusal whichever occurs earliest. Collection of soil properties (sieve analysis, density, moisture content, consistency limit, specific gravity, direct shear test, consolidation test). Analysis of test data and submission of detailed test. (Submission of six copies of link sign test report with detailed description of field investigation and site plan duly earmarked with bore hole locations).

Determination of field CBR value of soil & OMC, MDD, Mechanical analysis of test data and submission of six copies of ink sign test report with detailed description of investigation

To carry out the plate load test to ascertain K- value (Modulus of subgrade reaction) of the soil (As per IS provisions) at location as directed by Engineer-in-Charge, analysis of test data and submission of detailed test report, (Submission of six copies of ink sign test report with detailed description of filed investigation). Note : For integrated watch tower.

Estimation of safe side slopes for excavation.

Suitability of excavated material as back fill.

To check for liquefaction potential.

Any other pertinent information relating to foundation design considered necessary.

Soil investigation report shall include a detailed site plan showing the aprox location of each bore duly numbered as per log of the bore holes should be enclosed. Location of foundation of adjacent structures, especially those that might be impact by the proposed construction should be indicated with details in site plan.

Photographic record of geo-explorations as well as testing shall also form part of the report.

Every page of the soil investigation Report should have the Name of the Job for which soil Investigation is being carried out. In case of multiple sites of a single job are being investigated name of each site shall be put on each page of report pertaining to the site.

All pages of the Soil Investigation Report shall be serially numbered, stamped and signed by the Agency carrying out the Soil investigation Report should be scrutinized by GE & CWE for correctness & endorsed.

In case of underground building basement construction, or if requirement of temporary/permanent deep excavation support measures during construction of building are envisaged necessary excavation support measures to be given by the consultant based on geotechnical investigations.

Transportation of equipment/ Mobilization/ Dematerialization of equipment, etc. for soil investigation.

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Shree Balaji Test House Pvt. Ltd.