For the determination of earth pressure, Coulomb's wedge theory assume

1.	For the determination of earth pressure, Coulomb's wedge theory assumes that:
A.	the back of wall is smooth and vertical
B.	the soil is non-homogeneous and anisotropic
C.	the slip surface is circular
D.	the wall surface is rough
Answer» E.

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For the determination of earth pressure, Coulomb's wedge theory assumes that:

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