It was important to search the critical slip surface in slope stability analysis.
搜索临界滑面是边坡稳定分析的一项重要工作。
The trial slip surfaces are verified frequently by the random walking method and gradually tend to the critical slip surface.
利用随机走步法不断更新试算滑动面，使其安全系数不断减小。
This method overcome the problems of many supposition conditions in theory and difficulty in searching critical slip surface in 3D limiting equilibrium analysis;
该方法克服了三维极限平衡分析方法在理论上引入较多假设条件，且搜索临界滑裂面困难的问题；
The study indicates that the flow rule has small influence on the stability of the slope without restriction; however, the critical slip surface may be different.
研究结果表明，对于无约束的天然边坡，自重作用下其安全系数受流动法则的影响较小，而滑裂面的位置随流动法则的不同而不同；
The test results demonstrate that this algorithm can pick out the global critical slip surface, and the circular or non-circular critical slip surface is reproduced as well.
计算的结果表明：该算法找到全局最优解，并且真实再现某些情况下，圆形或其他非圆形式的临界滑动面。
Summed up the main factors that caused the rainfall-induced landslide and the features of the critical slip surface, it can provide important reference to disaster prevention.
总结了降雨诱发土质滑坡的主要诱发因素和滑动特征，为该地区的灾害防治提供十分重要的参考。
Beginning at the analysis of variation of stress distribution of a slop, the location of critical slip surface is directly determined, and the globe safety factor is calculated.
该方法考虑土的应力应变关系和土坡失稳的破坏形式，从分析土坡应力分布的变化入手，直接确定临界滑裂面的位置，进而计算土坡总体安全系。
According to the transient simulation of seepage field and non-saturated shear strength theory, the stability of Sipu landslide and the space-time evolution of the critical slip surface were analyzed.
根据模拟的瞬态渗流场与非饱抗剪强度理论，对思铺滑坡的稳定性和最危险滑动面的时空演化进行了分析。
According to the transient simulation of seepage field and non-saturated shear strength theory, the stability of Sipu landslide and the space-time evolution of the critical slip surface were analyzed.
根据模拟的瞬态渗流场与非饱抗剪强度理论，对思铺滑坡的稳定性和最危险滑动面的时空演化进行了分析。
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