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Primary Consolidation Settlement

The natural v...

Question

The natural void ratio of a saturated clay strata, 3 m thick is 0.90. The final void ratio of the clay at the end of consolidation is expected to be 0.71. The total consolidation settlement of the clay strata is

A

30 cm

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B

25 cm

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C

20 cm

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D

15 cm

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Solution

The correct option is A 30 cm
Total consolidation

$Δ H = \frac{H (e_{0} - e_{f})}{1 + e_{0}}$

$= \frac{3 \times 10^{2} \times (0.9 - 0.71)}{1 + 0.9}$

= 30 cm

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