Soil investigation

Mobilisation Charges of all tools & Plants along with accessories, material, labour, supervision etc. at site of work required in connection with boring and testing work, including setting up boring rigs and shifting to different Bore-hole points etc. and also including withdrawal of same from the site after completion of work, complete as per direction of Engineer-in-Charge. b) Detailed Investigation

Carriage of all Disturbed & Undisturbed Samples from site of work to the Divisional office or elsewhere including loading and unloading as per direction of Engineer-in-Charge. Detailed Investigation.

Labour for making Bore-Holes of 150mm to 250mm dia. by any standard method to any depth below ground level / bed level in all kinds of soil like clay, silt, sand, stiff clay, mixed soils etc. except rocks (for the purpose of collecting Disturbed & Un disturbed soil samples, conducting Standard Penetration Test at suitable intervals etc.) including preparation and submission of bore-log as per IRC : 75 and 78 and Clause 2400 of Specifications for Road & Bridge Works (5th Revision), Published by IRC, and also including hire charges of tools and plants complete as per the direction of Engineer-in-Charge. a) When Casing pipe is used to prevent collapse of bore hole (casing pipe to be finally withdrawn) (i) Depth 0m to 10m

Depth 10m to 20m

Depth 20m to 30m

No. of Laboratory Investigation: (i) Depth 0m to 10m (ii)Depth 10m to 20m (iii) Depth 20m to 30m i) Liquid Limit as per IS 2720 (Part – V).

ii) Plastic Limit as per IS 2720 (Part – V)

iii) Grain size analysis by Sieving as per IS 2720 (Part – IV).

iv) Grain size analysis by Hydrometer Method as per IS 2720 (Part – IV).

v) Determination of Water Content as per IS 2720 (Part – II).

vi) Determination of Specific Gravity as per IS 2720 (Part – III).

viii) Determination of Unconfined Compression Strength as per IS 2720 (Part – X). a) Undisturbed.

xiv) Determination of Consolidation Properties as per IS 2720 (Part – XIV).

xvi) Tri-Axial Shear Test. a) Determination of Shear strength Parameters of a specimen tested in Unconsolidated Undrained Tri-axial compression without measurement of pore water pressure as per IS 2720 (Part – XI).

v) Collection of Undisturbed soil sample from the bore hole to be made by the concerned Division / Party at their cost. (i) 0.0m - 10.0m

vi) Standard Penetration Tests (S.P.T.) by Split Spoon Sampler in the bore hole as per IS 2131. (i) 0.0m - 10.0m

Preparation and submission of report in 6 (Six) copies, giving all relevant information data like site plan, Bore log and water table, test results, calculations, discussions, suggestions and recommendations in respect of suitable foundation etc. including determination of silt factor calculation of waterways and complete design of foundation including analysis of Bearing Capacities and settlements in bound and presentable form complete as per direction of Engineer-in-Charge. b) Detailed Investigation

xi)Determination of Water content dry density relation using light compaction as per is 2720 (part-VII)

ADD : GST - 18% (SGST = 9% & CGST = 9%)

ADD : WEST BENGAL LABOUR WELFARE CESS = 1%

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