If free water stands on both side of a retaining wall, the lateral ear – McqOptions

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1.	If free water stands on both side of a retaining wall, the lateral earth pressure is given by ____
A.	pₐ=Kₐ γ’ z
B.	pₐ=Kₐ γ’ z-γw z
C.	pₐ=Kₐ γ’ z+γw z
D.	pₐ=Kₐ γ’ z*γw z
Answer» B. pₐ=Kₐ γ’ z-γw z

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