【摘 要】
：
该文假定滑动面为三次的拉格朗日插值函数,假定挡土墙后滑面正应力为三次的拉格朗日插值函数,推导出包含被动土压力的水平力、垂直力和绕挡土墙顶点旋转的力矩平衡方程。利用
【机 构】
：
南京解放军理工大学工程兵工程学院,合肥工业大学土木与水利工程学院,
论文部分内容阅读
该文假定滑动面为三次的拉格朗日插值函数,假定挡土墙后滑面正应力为三次的拉格朗日插值函数,推导出包含被动土压力的水平力、垂直力和绕挡土墙顶点旋转的力矩平衡方程。利用优化原理,迅速准确的确定最危险滑面和最危险滑面对应的最小被动土压力。该方法避免了传统极限平衡条分法计算被动土压力系数的繁琐,并在很大程度上克服了其它近似方法的不精确性,可用于一般工程。
This paper assumes that the sliding surface is a Lagrange interpolation function with three times. Assuming that Lagrangian interpolation function of the posterior slip surface normal stress of the retaining wall is three times, the horizontal and vertical forces of the passive earth pressure are deduced. Torque balance equation of wall vertex rotation. Using the optimization principle, the minimum passive earth pressure corresponding to the most dangerous slip surface and the most dangerous slip surface can be quickly and accurately determined. The method avoids the cumbersome calculation of passive earth pressure coefficient by traditional limit equilibrium striping method and largely overcomes the inaccuracy of other approximate methods and can be used in general engineering.
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