Up to 50 soil layers can be taken into consideration. For each layer the following parameters must be given:
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depth in metres below top of the wall, or absolute depth,
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unit weight [kN/m³] of moist soil γ,
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unit weight [kN/m³] of buoyant soil γ',
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friction angle [°],
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cohesion (active and passive) [kN/m²],
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active angle of wall friction as the ratio δa/φ,
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passive angle of wall friction δp/φ,