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根据刚性挡土墙模型试验中主动土压力的分布规律和主动土压力产生的机理 ,利用弹塑性理论 ,引入接触面单元和弹簧边界条件 ,建立了刚性挡土墙主动土压力的计算模式。理论计算与模型试验结果能很好地吻合。计算表明实际工程中底部边界摩擦力只影响较小区域的土压力
According to the distribution law of active earth pressure in rigid retaining wall model test and the mechanism of active earth pressure, the calculation model of active earth pressure of rigid retaining wall is established based on elasto-plastic theory and the boundary conditions of contact surface elements and springs. Theoretical calculation and model test results can be well matched. The calculation shows that the actual boundary pressure in the bottom boundary only affects the earth pressure in the smaller area