A wall 6 m high has a smooth vertical back and retained sand as a backfill that is submerged. The sand has Ysat = 20 kN/m3 and ϕ = 30º. The total active earth pressure is

A wall 6 m high has a smooth vertical back and retained sand as a back

1.	A wall 6 m high has a smooth vertical back and retained sand as a backfill that is submerged. The sand has Ysat = 20 kN/m3 and ϕ = 30º. The total active earth pressure is
A.	90 kN/m
B.	60 kN/m
C.	120 kN/m
D.	None of the above
Answer» E.

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A wall 6 m high has a smooth vertical back and retained sand as a backfill that is submerged. The sand has Ysat = 20 kN/m3 and ϕ = 30º. The total active earth pressure is

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