Civil Engineering > GATE 2018 SET-1 > Geotechnical Engineering
At a construction site, a contractor plans to make an excavation as shown in the figure.
The water level in the adjacent river is at an elevation of +20.0 m. Unit weight of water is 10 kN/m3. The factor of safety (up to two decimal places) against sand boiling for the proposed excavation is _______.

Correct : 1.00 to 1.03

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