用最优化方法确定边坡稳定性最小安全系数

Minimum Safety Factor for Slope Stability Decided by Optimization Method

边坡稳定性分析中相应于最小安全系数的临界滑裂面可以通过运用最优化方法求得。圆弧和任意形状滑裂面均可用一系列参数描述,其安全系数则可表达为这些参数的函数。介绍了如何运用最优化方法、结合边坡稳定性分析的常用土力学方法求此类函数的极小值。

In slope stability analysis,the critical slip surface with minimum safety factor can be obtained by using optimization method.Circular and any other shape slip surfaces may be described by a series of parameters,their safety factors may be expressed as functions of these parameters.The minimum values of such functions can be obtained by the optimization method combined with conventional geotechnical method in slope stability analysis.