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基于极限平衡理论,视墙后填土为服从Mohr-Coulomb屈服准则的理想弹塑性材料,指出库仑土压力理论存在的一些缺陷,明确提出极限土压力是由墙后塑性土体产生,并假定塑性区的一族滑移线为直线即平面滑裂面,建立了更为完善的滑楔分析模型,求解了在一般情况下考虑黏性土作用的挡土墙被动土压力、滑裂面土反力以及它们的分布。经典库仑和朗肯被动土压力为其特例。
Based on the theory of limit equilibrium, the backfill wall is an ideal elastic-plastic material that obeys the Mohr-Coulomb yield criterion. Some defects of Coulomb’s earth pressure theory are pointed out. It is explicitly proposed that the ultimate earth pressure is generated by the plastic behind the wall and the plasticity A group of slip lines in the area is a straight line that is plane slip surface. A more complete sliding wedge analysis model is established, and the passive earth pressure of retaining wall considering the effect of cohesive soil and the soil reaction force And their distribution. The classical Coulomb and Rankine passive earth pressure is its special case.