一种改进的三维边坡稳定性分析方法

An improved method for three-dimensional slope stability analysis

摘要: 在现有的边坡稳定性三维极限平衡法分析的基础上,提出了一种改进方法,该方法考虑了条间作用力和底滑面剪切力方向对边坡稳定性的影响,在假定条柱分界面也处于极限平衡状态的条件下,通过每一条柱三个方向的静力平衡条件,推导出边坡稳定系数的计算公式。通过模型计算反映出边坡按二维和三维问题分析时的边界条件,并进一步证实了潘家铮先生提出的极大和极小原理。

Abstract: Having reviewed the published threedimensional models of limit equilibrium analysis,the authors suggested a new approach for threedimensional slope analysis. The interslice forces and the direction of shear force on the sliding surface are taken into account in the new method which supposed the failure mass is in static equilibrium along three directions. 