Civil Engineering - Soil Mechanics and Foundation Engineering - Discussion

Discussion Forum : Soil Mechanics and Foundation Engineering - Section 3 (Q.No. 33)
33.
A sample of saturated soil has 30% water content and the specific gravity of soil grains is 2.6. The dry density of the soil mass in g/cm3, is
1.47
1.82
1.91
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 2 of 2.

Pavan said:   6 years ago
We have Yd=GYw/(1+e).

We have to calculate the value of e from S.e=W.G.
S=1, W=0.3,G=2.6 all values put and find e as 0.78.

Now all putting in eq.Yd = GYw/(1+e).
Yd = 2.6/(1+0.78).
Yd = 1.46.
(9)

Jeet said:   6 years ago
A is correct.
(1)

Reetu jayswal said:   4 years ago
C is correct.

For saturated soil,
Yd=(G+e)Yw/(1+e),
Yd=(2.6+.78)1/(1+.78),
Yd= 1.91.
(4)

Muhammad Ali said:   4 years ago
Why not Yd= GYw/1+w? Explain please.


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