Geotechnical Investigation for structures in proposed Railway Siding Works at Shaktinagar, District Sonebhadra, Uttar Pradesh

Mobilization and demobilization of tools, equipment and personnel for carrying out the soil investigation work to and from the site at Shaktinagar (U.P.). The quoted rate shall also include the cost of shifting equipment, manpower and machinery between various borehole locations within the project site.

Soil Exploration and Testing

Exploratory drilling of boreholes down to the required depth, drilling of 150 mm diameter boreholes in all types of soils except hard rock and large boulders (boulder core more than 30 cm), including refilling, reinstating the surface, and disposing of surplus material. The work shall include the use of mechanical rigs with power-operated winches, as well as percussion/chiselling tools for advancing through occasional seams of hard strata, wherever necessary, in dry areas.

Drilling of NX size bore hole (75mm dia.) in all types of hard rock and collection of rock core samples from boreholes and preserving in boxes.

Conducting determination of California Bearing Ratio as per IS:2720

Taking out 100 mm diameter and 450 mm long undisturbed samples of soil from boreholes, including provision of air-tight containers for packing and labeling, and transporting the samples to the laboratory. Piston samplers shall be used for extracting undisturbed samples wherever necessary. Samples shall be collected as per IS: 2720.

Taking out 100 mm diameter and 450 mm long disturbed samples of soil from boreholes, including provision of air-tight containers for packing, labeling, and transporting the samples to the laboratory. Samples shall be collected as per IS: 2720.

Conducting standard penetration test as per IS:2131 at approximate 1.5m intervals in bore holes, as directed by the Engineer in charge

Collection of water samples at required intervals

Conducting laboratory Tests on collected soil samples as per relevant IS code

Moisture Content/Dry Density

Atterberg Limits

Specific Gravity

Grain size analysis including Hydrometer analysis

Direct Shear Test

Natural Density

Consolidation Test

Unconfined Compression Test

Tri-axial Test

Conducting Laboratory tests on collected ROCK SAMPLES as per relevant IS code

Density Test

Water Absorption & Porosity

Hardness

Unconfined Compression Test

Point Load Test

Modulus of Elasticity

Abrasion Testing

Conducting chemical analysis of ground water samples to determine suitability for concreting and aggressiveness in relation to attack on concrete/ reinforcement includingdetermination of pH value.

Conducting chemical analysis of soil samples to determine aggressiveness in relation to attack on concrete / reinforcement including determination of pH value

Note: Analysis & Report Submission: Engineering analysis and submission of report containing bore log as per IS codes 1892, details, type & depth of foundations, safe allowable load bearing capacity for open foundation and calculation of settlement of both open and pile foundation. For pile foundation settlement calculations should be done up to 1Om below the tip of pile. Settlement calculations as per IS codes: 1904, 6403-1981 and 8009 Pt 1-1976 and Pt-2 respectively. CR& RQD values, shear strength of rock at different depths. Modules of deformation of rock mass and rock material) spacing of discontinuity & its aperture along with orientation, Unit weight of rock at depths, Safe bearing pressure of rock be specifically mentioned. Final report in 3 copies with required drawings.