Name of Work: GEOTECHNICAL INVESTIGATION (SUBSURFACE) FOR WARDHA PROJECT
Sl. No.
Item Description
1
Mobilization of necessary plant, equipment, Men and materials for the complete geo-technical investigation work as per specifications, drawings and instructions of the Engineer and to complete the same within the stipulated time schedule and demobilization (Rotary Calyx)
2
Making suitable arrangement for offshore drilling with boring platform / fishing trawlers / boats /positioning platform with anchor at borehole Location in river/ water body with maximum depth of water is about 8m (including Shifting of boring platform from one BH locations to another BH location in water points)
3
Making 150mm nominal diameter bore holes at various locations in all types of soils with suitable approved method of boring, performing Standard Penetration Tests (As per IS:2131) at every 1.5m intervals and collecting UDS in cohesive soil (Depth from 0m water level to river bed bottom) Drilling in Off Shore Locations:Drilling in Soil
4
Making 150mm nominal diameter bore holes at various locations in all types of soils with suitable approved method of boring, performing Standard Penetration Tests (As per IS:2131) at every 1.5m intervals and collecting UDS in cohesive soil (Depth from 0m water level to river bed bottom) Drilling in Off Shore Locations:Drilling in SDR/ Soft Rock using NX Tungsten carbide bit including collection of rock care samples, logging and submitting the same to client.
5
Making 150mm nominal diameter bore holes at various locations in all types of soils with suitable approved method of boring, performing Standard Penetration Tests (As per IS:2131) at every 1.5m intervals and collecting UDS in cohesive soil (Depth from 0m water level to river bed bottom) Drilling in Off Shore Locations:Drilling in Hard Rock/boulders using diamond bit including collection of rock care samples, logging and submitting the same to client.
6
Conducting various Laboratory tests on soil and rock (As per IS codes) samples Test on SPT/disturbed samples 1. Sieve analysis 2. Hydrometer analysis 3. Liquid limit, plastic limit & Shrinkage limit 4. Free swell index Test on UDS samples 5. Bulk density and moisture content 6. Unconfined compression test 7. Box shear test 8. Tri-axial shear test 9. Consolidation 10. Chemical analysis Test on Rock core samples 11. Water absorption and density 12. Unconfined compression test 13. Point load test
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