Question

The range of void ratio between which quick sand condition occurs in cohesionless granular soil deposits is

• A. 0.4 - 0.5
• B. 0.6 - 0.7
• C. 0.8 - 0.9
• D. 1.0 - 1.1

Answer 1

The correct option is B 0.6 - 0.7

In cohesionless granular soil, quick sand condition occurs at critical hydraulic gradient equal to 1.

$i_{cr}=\frac{G-1}{1+e}=1$

$\Rightarrow \frac{2.67-1}{1+e}=1$

e = 0.67

range of void ratio is 0.6 - 0.7.