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Back fill with a sloping surface exerts a total active pressure Pa on the wall of height H and acts at
Back fill with a sloping surface exerts a total active pressure Pa on the wall of height H and acts at
P A = 1 2 × K A × γ × H × H ⇒ P A = 1 2 K A γ H 2 , acting at a distance H/3 above the base of the wall.