Direction: The average effective overburden pressure on 10 m thick homogeneous saturated clay layer is 150 K Pa. Consolidation test on undisturbed soil sample taken from the clay layer showed that the void ratio decreased from 0.6 to 0.5 by increasing the stress intensity from 100 kPa to 200 kPa. (G = 2.65)
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The total consolidation settlement of the clay layer due to the construction of a structure imposing an additional stress intensity of 200 kPa is
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- 0.10 m
- 0.25 m
- 0.35 m
- 0.50 m
Correct Option: D
| Cc = | ∆e | |||
| log10 |  |  | ||
| σ0 | ||||
| ∴ ∆e = Cc × log10 | | | σ0 |
| = 0.209 × log10 | | | = .0769 | 150 |
| = | ||||
| 1 + e0 | H |
| ∴ ∆H = | = | = .49 ≈ 0.5 m | ||
| 1 + e0 | 1 + .563 |
