Civil Engineering - GATE Exam Questions - Discussion

Discussion Forum : GATE Exam Questions - Section 6 (Q.No. 26)
26.
A saturated clay stratum draining both at the top and bottom undergoes 50 percent consolidation in 16 years under an applied load. If an additional drainage layer were present at the middle of the clay stratum, 50 percent consolidation would occur in
2 years
4 years
8 years
16 years
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
5 comments Page 1 of 1.

Abhijeet said:   6 years ago
Thanks @Phani.

Phani said:   7 years ago
Ans. t2/t1 = d1^2/d2^2,
t1 = 16.
t2 = ?
d1= 50.
d2=100 (50+50) means additional drainage was provided,
= 4yrs.

Abdelhamid.hidar said:   8 years ago
(0.5/1)\^2 *16 = 4 years

Amit Padiyar said:   9 years ago
@Akanksha.

Additional drainage layer will reduce the drainage path.

Akanksha said:   10 years ago
Please share details explanation of this question.

What's the role of additional drainage layer which present at the middle of the clay stratum?

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