GGU-RETAIN: Increased active earth pressure
The coefficient of increased active earth pressure, keh, is obtained from the coefficient of active earth pressure and at-rest earth pressure:
keh = (1.0 - f) · kah + f · k0
0.0 ≤ f ≤ 1.0
The coefficient of increased active earth pressure, keh, is obtained from the coefficient of active earth pressure and at-rest earth pressure:
keh = (1.0 - f) · kah + f · k0
0.0 ≤ f ≤ 1.0