Civil Engineering - UPSC Civil Service Exam Questions - Discussion

23. 

The changes that take place during the process of consolidation of a saturated clay would include

[A]. an increase in pore water pressure and an increase in effective pressure
[B]. an increase in pore water pressure and a decrease in effective pressure
[C]. a decrease in pore water pressure and a decrease in effective pressure
[D]. a decrease in pore water pressure and an increase in effective pressure

Answer: Option D

Explanation:

No answer description available for this question.

Umesh H A said: (Sep 12, 2018)  
1St stage immediately during consolidation, there will be an increase in pore water pressure, effective stress will be zero.
2ND stage - pore water pressure starts to decrease and effective pressure starts to increase.
3Rd stage- after the consolidation pore water pressure becomes zero and effective stress increases.

But during all the three stages TOTAL STRESS remains constant.

Prasanna Gosavi said: (Sep 26, 2021)  
Nice explanation, thanks @Umesh H A.

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