Civil Engineering MCQAE Level Civil Engineering

Under load, the void ratio of a submerged saturated clay decreases from 1.00 to 0.92. The consolidation settlement of a 2 m thick clay layer of the same type will be

Soil MechanicsSoil MechanicsMEDIUM

Choose the correct answer

A

20 mm

B

40 mm

C

80 mm

D

100 mm

Correct Answer

C. 80 mm

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Consolidation settlement: rho = H * (e0 - e1) / (1 + e0), where H = initial layer thickness, e0 = initial void ratio, e1 = final void ratio under applied stress. Also: rho = H * mv * delta_sigma (mv = coefficient of volume compressibility). One-dimensional consolidation theory (Terzaghi, 1925) governs settlement and time rate. Settlement = H(e0-e1)/(1+e0) = 80 mm.

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This MCQ belongs to WBPSC AE Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.

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