A Novel Active Earth Pressure Distribution Model Based on the Critical Depth of Soil Arching Effect
In the process of solving active earth pressure behind retaining walls considering the soil arching effect,the soil arching effect does not act across the entire region but only starts to function after reaching a certain depth.Based on this concept,the critical depth at which the soil arching effect occurs is analyzed using the soil pressure theory considering the soil arching effect and the classical Coulomb earth pressure theory,and a novel active earth pressure model based on the critical depth of the soil arching effect is proposed.Numerical simulation methods are employed to validate the critical depth of the soil arching effect,and a sensitivity analysis is conducted on the parame-ters influencing the critical depth.Results indicate that the critical depth is significantly affected by the internal fric-tion angle of the soil and the wall-soil friction angle.As the internal friction angle increases,the critical depth decreases,and the spatial extent of the soil arching effect increases.The height of the retaining wall has a minor influence on the critical depth.
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