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a five meter retaining wall has to retain backfill of sandy soil having a unit weight...

a five meter retaining wall has to retain backfill of sandy soil having a unit weight 18.2 kn/m3 and angle of internal friction 32 degree,the surface of the backfill in inclined at an angle of 10 degree to the horizontal determine:the magnitude and point of application of the active thrust on the wall,draw a diagram of given situation ,and determine total active earth pressure acting with vertical or with horizontal.

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