Civil Engineering - Soil Mechanics and Foundation Engineering - Discussion

Discussion Forum : Soil Mechanics and Foundation Engineering - Section 4 (Q.No. 20)
20.
The consolidation time for soils
increases with increasing compressibility
decreases with increasing permeability
increases rapidly with increasing size of soil mass
is independent of the magnitude of the stress change.
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 1 of 2.

Laltu said:   3 years ago
I think C is the wrong answer.

ASHISH sharma said:   4 years ago
E is the correct answer.

t = CV * Tv/d'2.
Cv = k/Av * density.

Ashu said:   4 years ago
"av" is proportional to "mv", "mv" is inversely proporitonal to "Cv", "Cv" is inversely proportional to "t".

So, "t" increases with "av" increased.

Kvk said:   6 years ago
Option A is absolutely correct.

Compressibility means av (coefficient of compressibility) "av" is propertional to "mv", "mv" is inversely proporitonal to "Cv", "Cv" is inversely proportional to "t".

So as av increase mv increase and so cv decreases leading to increase of t i.e consolidation time.

Ali Zafar said:   6 years ago
If you see the formula as mentioned above, E is correct.

Ajay said:   6 years ago
If soil compresses continuously then the consolidation process required to remove air from soil, therefore, consolidation time increase.

If soil doesn't compress then consolidation not required.

Tushar said:   6 years ago
I think A is not correct option.

KR. Sheela said:   7 years ago
Give an explanation for the answer.

Deepak said:   7 years ago
I think Option A is not correct. Then how it would be D?

Pradipto Sarkar said:   7 years ago
All options are correct.

t = (Tv*d^2*Yw*av)/(k*(1+e)).
(1)


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