+1 vote
in Geotechnical Engineering I by (102k points)
A coarse-grained soil has a voids ratio of 0.66 and specific gravity G of 2.65. What will be its critical hydraulic gradient?

(a) 0.99

(b) 0.88

(c) 0.77

(d) 0.66

I had been asked this question in a national level competition.

I'm obligated to ask this question of Seepage Pressure and Upward Flow in portion Seepage Analysis of Geotechnical Engineering I

1 Answer

+1 vote
by (727k points)
selected by
 
Best answer
The correct choice is (a) 0.99

Explanation: The critical hydraulic gradient ic is given by,

\(i_c=\frac{G-1}{1+e}\)

\(i_c=\frac{2.65-1}{1+0.66}=0.99.\)

Related questions

We welcome you to Carrieradda QnA with open heart. Our small community of enthusiastic learners are very helpful and supportive. Here on this platform you can ask questions and receive answers from other members of the community. We also monitor posted questions and answers periodically to maintain the quality and integrity of the platform. Hope you will join our beautiful community
...