WBPWD/EE/BISHNUPUR DIVISION/e-NIT- 24/2025-2026_1

WBPWD / EE / BISHNUPUR DIVISION / e-NIT- 24/ 2025-2026 / SL- 1

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 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. When Casing pipe is used to prevent collapse of bore hole (casing pipe to be finally withdrawn) Depth 0m to 10m For 4 nos holes -4 X 10 mt = 40 mt

Depth greater than 10m and upto 20m For 4 nos holes -4 X 10 mt = 40 mt

Depth greater than 20m and upto 30m For 4 nos holes -4 X 10 mt = 40 mt

Extra for boring in water (1.2m and higher depths).

Laboratory Investigation: Liquid Limit as per IS 2720 (Part – V).

Plastic Limit as per IS 2720 (Part – V)

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

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

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

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

Direct Shear Test as per IS 2720 (Part – XIII).

Tri-Axial Shear Test. 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).

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

Collection of Samples from the bore hole made as per B-a Undisturbed

Disturbed

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

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.