How the water table may rise to the ground surface, Civil Engineering

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State the size of a square footing at the ground level to transmit a load of 900 kN in sand weighing 18 kN/m3 and having an angle of shearing resistance of 36° (N  = 46, Nq = 43). Factor of safety is 3. What will be the changes in the result, if the footing may be placed at a depth of 1 m below ground surface? Suppose, in this case, the water table may rise to the ground surface.

 


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