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.	p<sub>a</sub>=K<sub>a</sub> z
B.	p<sub>a</sub>=K<sub>a</sub> z- <sub>w</sub> z
C.	p<sub>a</sub>=K<sub>a</sub> z+ <sub>w</sub> z
D.	p<sub>a</sub>=K<sub>a</sub> z* <sub>w</sub> z
Answer» B. p<sub>a</sub>=K<sub>a</sub> z- <sub>w</sub> z

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