If the density of soil solids is 2.65 gm/cc and void ratio is 1, then the critical hydraulic gradient is
- A0.825Correct
- B1.012
- C0.925
- Dnone of these
Solution
Concept
Critical gradient
Formula
ic = (G − 1)/(1 + e)
Step-by-step solution
1. ic = (2.65 − 1)/(1 + 1) = 0.825.
Explanation
At ic, effective stress is zero.
Why the other options are wrong
Other values do not follow from the formula.
Shortcut
(G−1)/(1+e).
Correct answer: A) 0.825