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首页> 外文期刊>Canadian Geotechnical Journal >Determination of passive earth pressure coefficients by the method of triangular slices
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Determination of passive earth pressure coefficients by the method of triangular slices

机译：三角片法确定被动土压力系数

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A new procedure is proposed for determination of passive earth pressure coefficients using triangular slices within the framework of the limit equilibrium method. The potential sliding mass is subdivided into a series of triangular slices, rather than vertical slices as usual, with inclinations of the slice bases to be determined. The forces between two adjacent slices (interslice forces) are expressed in terms of interslice force coefficients, and recursive equations for solving interslice coefficients are derived. By using the principle of optimality, the critical inclinations of slice bases, minimum interslice force coefficients, and passive earth pressure coefficients are determined. A form of function for describing the distribution of interslice force inclination (interslice force function) is suggested and the scaling parameter contained in the function is determined by satisfying the moment equilibrium condition for the final sliding mass. Comparisons are made with other accepted methods and tables for passive earth pressure coefficients are presented for practical use. [References: 8]
机译：在极限平衡法的框架内，提出了一种利用三角形切片确定被动土压力系数的新方法。潜在的滑动质量被细分为一系列的三角形切片，而不是通常的垂直切片，需要确定切片基部的倾斜度。用层间力系数表示两个相邻切片之间的力（层间力），并推导了求解层间系数的递推方程。利用最优原理，确定了片基的临界倾角，最小层间力系数和被动土压力系数。提出了一种用于描述层间力倾斜度分布的函数形式（层间力函数），并且通过满足最终滑动质量的力矩平衡条件来确定函数中包含的缩放参数。与其他公认的方法进行了比较，并提供了实际使用的被动土压力系数表。 [参考：8]

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