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Time factor for a clay layer is

This question belongs to Civil Engineering Soil Mechanics And Foundation
Soil Mechanics and Foundation
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Time factor for a clay layer is

Answer & Solution
Correct Answer: Option B
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6 Comments
Sabir Hussain
Sabir Hussain 5 years ago
Tv=Cv.t/d^2 as Cv=k/mv.γ and Tv= k.t/mv.γ.d^2
so option B is correct.
Pankaj Mina
Pankaj Mina 6 years ago
option a is also correct because this dimension less parameter also???
Neha Rawat
Neha Rawat 6 years ago
B is correct
K=Cv.mv.¥w
and Tv directly proportional to Cv
So Tv proportional to K


Option c would be correct if it is inversely proportional to square of drainage path
Kaberi Roy
Kaberi Roy 6 years ago
As per formula option c should be corrected.
Abhijeet Chakrey
Abhijeet Chakrey 6 years ago
Time factor is inversely proportional to permeability.
For clay where U is greater than 60% then Tv is directly proportional to pore water pressure
And inversely proportional to sqrt of drainage path.
Dilip Singh
Dilip Singh 7 years ago
But how please explain.
I think the formula for time factor is Tv =Cv x t/d2
Therefore it is inversely proportional to d2 drainage path so ans C is correct option
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