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Geotechnical Engineering and Soil Mechanics
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For a saturated sand deposit, the void ratio and the specific gravity of solids are 0.70 and 2.67, respectively. The critical (upward) hydraulic gradient for the deposit would be
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A
0.98
💡 Explanation:
$e = 0.70, g = 2.67\\
\text{Critical hydraulic gradient causes effective stress to zero and}\\
i_c = \frac{G - 1}{1 + e} = \frac{2.67 - 1}{1 + 0.7} = 0.98$