GATE CE 2016 Set 2 — Question 23
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Geotechnical Engineering → Consolidation → NC & OC Clays
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Question
The results of a consolidation test on an undisturbed soil, sampled at a depth of m below the ground level are as follows:
The water table was encountered at the ground level. Assuming the unit weight of water as kN/m, the over-consolidation ratio of the soil is
| Parameter | Value |
|---|---|
| Saturated unit weight | kN/m |
| Pre-consolidation pressure | kPa |
Correct answer
(B) 1.50
Solution
1.Calculate the effective overburden pressure () at a depth of m.
Since the water table is at the ground level, the soil is fully saturated..
2.Calculate the Over-Consolidation Ratio (OCR).
OCR = OCR = .Therefore, the correct option is (B).
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