Overconsolidation Ratio of Clay
EasyOCRoverconsolidation
A clay has a preconsolidation stress of 240 kPa and a current effective overburden stress of 120 kPa. Its overconsolidation ratio (OCR) is:
- A2.0
- B0.5
- C1.0
- D3.0
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Answer: A. 2.0
OCR = σ′p/σ′0 = 240/120 = 2.0. Inverting the ratio gives 0.5.
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