【摘要】 根据土体微分单元体的静力平衡条件,建立了挡土墙绕墙顶转动情况下被动土压力分布的计算表达式,同时进行了被动土压力分布、合力及作用点与库仑土压力、实测结果的分析比较。结果表明:该公式很好地反映了实测曲线的非线性分布,同时被动土压力合力与库仑被动土压力基本相同,合力作用点接近于0.27倍墙高处。更多还原

【Abstract】 Based on the condition of static equilibrium in the sliding soil,the expression of passive earth pressure with rigid retaining wall rotating around wall top(RT) for cohesionless soils is established.The comparisons are made among the presented formula,the Coulomb formula and some experimental observations.It is demonstrated that the presented formula can well reflect the nonlinear distribution of passive earth pressure.The magnitude of the resultant earth pressures for the movement mode of RT of rigid retaining wall is approximately equal to that by the Coulomb theory,and the action points of the resultant earth pressures lie around 0.27 times of the height of rigid retaining wall.更多还原