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将填土内摩擦角及墙土接触面上的外摩擦角与墙体平动位移之间的关系植入传统水平层分析法中,用于求解非极限平动变位模式状态下的土压力。取挡土墙后滑动土体的水平薄层单元进行受力分析,建立了非极限状态下土压力强度的一阶微分方程,得到了非极限平动变位模式下挡土墙上的土压力分布、土压力合力及土压力合力作用点的计算公式。将计算结果与已有模型试验、库仑土压力和其它土压力计算方法的结果进行了比较。结果表明该计算方法接近土压力的真实分布,能综合考虑挡土墙变位模式及其位移对土压力的影响。
The relationship between the internal friction angle of the soil and the external friction angle on the wall-soil contact surface and the translational displacement of the wall is implanted into the conventional horizontal-layer analysis method for solving the earth pressure under the non-limit translational motion mode . Taking the horizontal thin-layer element of the sliding soil behind the retaining wall as an example, the force analysis is carried out and the first-order differential equation of the earth pressure intensity under the non-limit state is established. The earth pressure on the retaining wall under the non-limit translational motion mode Distribution, earth pressure force and earth pressure force acting point calculation formula. The results of the calculation are compared with the results of the existing model tests, Coulomb’s earth pressure and other earth pressure calculation methods. The results show that the method is close to the true distribution of earth pressure and can comprehensively consider the effect of retaining wall displacement mode and its displacement on earth pressure.