Civil Engineering - Soil Mechanics and Foundation Engineering - Discussion

Discussion Forum : Soil Mechanics and Foundation Engineering - Section 5 (Q.No. 29)
29.
Pick up the correct statement from the following:
When stress decreases, void, ratio decreases
When stress decreases, coefficient of permeability decreases
When stress decreases, coefficient of volume change decreases
When stress decreases void ratio, co-effi-cients of per-meability and volume change decrease.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 1 of 2.

Abhash said:   10 years ago
Decreases or increases? In deep confusion!

Rosh said:   10 years ago
I think all 3 components increases as stress are decreases.

Mks said:   9 years ago
All the 3components increases.

Cherry jindal said:   9 years ago
I think that all will increase.

Indu said:   8 years ago
I think, It will increase.

Shreya said:   8 years ago
C is the right Answer.

Aamir said:   8 years ago
I think c is right.

Nathu said:   8 years ago
Av = e1-e2 / q1-q2

if q decrease then the coefficient of compressibility (Av) increases. and void ratio e = e1 - e2 decreases due to increase in stress

If Av increases then Mv = Av/1+e, Mv also increases.

then the permeability K = Cv . Mv . Yw if Mv increases then K also increases.

Pleo said:   6 years ago
I think option B is correct.

Krishna. said:   6 years ago
Answer D is correct.

"When stress decreases void ratio" i.e. if stress has to decrease void ratio stress should be increased.

If stress increases mv decreases as it is inversely proportional to stress increase. As k and mv are directly proportional, k also decreases if mv decreases.
(2)


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