The author presents the theory and method to determine slip surface and forecast landslide time in respect to surface displacement vector of slope.
论述了滑坡坡面位移特征，提出了根据坡面位移矢量确定滑坡滑动面、预报滑坡发生时间的原理和方法。
The factor of safety is the function of slip surface, only the minimal factor of safety can describe the slope stability.
边坡安全系数是可能滑面的函数，而只有最小安全系数才可代表边坡的安全程度。
In terms of the locations of the potential dangerous slip surface, the failure of rock slope can be classified as shallow slide and deep slide.
根据边坡潜在滑动面的位置可将岩质边坡的滑动分为浅层滑动和深层滑动两种形式。
The shape, position and safety factor of slope stability for the most dangerous potential slip surface with the method in this paper is quite different from that with the normal methods.
常规边坡稳定性分析与本文方法所得到的最危险潜在滑移线（面）形状和位置、边坡稳定安全系数均相差较大；
The influence of the soil shearing strength index on slope stability is recommended, and the inducing factor of rainfall on formation cracking and slip failure in the surface of slope is presented.
讨论了粘性土在不同固结状态下的强度指标变化规律，阐述了土的强度指标对滑坡稳定性的影响，以及雨水对滑坡崩塌滑动的诱发作用。
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。
Stability method based on slip surface FE stress and shear strength reduction method are two principal methods for FEM slope stability analysis.
基于滑面上应力分析法和强度折减法是边坡稳定有限元分析方法中两类主要的方法。
To solve these problems, multi-grid method is adopted to establish structural grid for finite element computation and slip surface grid for computing factor of safety of slope stability, respectively.
为了解决这些问题，采用多重网格法建立结构的有限元计算网格，滑动面的边坡稳定性安全系数的计算网格，分别。
The program can use the inverse reliability method and Limit equilibrium method to evaluate stability of slope with multilayer and arbitrary slip surface. It facilitates comparison of results.
该程序操作简便，适用于多岩土层非均质任意形状滑裂面边坡稳定分析，具有边坡稳定确定性分析和逆可靠度分析两大功能，便于计算结果的比较分析。
According to the quasi-static seismic stability analysis of slope, a new method based on the assumption of circular slip surface is established.
根据遗传算法的思想和拟静力瑞典法基于圆弧滑动面的假定，提出一种用遗传算法搜索最危险滑动面及其对应的最小安全系数的方法。
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；
It's also discovery that there is displacement discrepancy in the slide mass along the slip surface, which sets new theoretical base for ground surface deformation analysis and slope failure process.
揭示了滑体沿滑面的滑动位移具有差异性滑动的变形非协调现象，为分析地表变形和滑坡解体过程奠定了新的理论基础。对含碎石粘性土滑坡的不同治理措施进行了系统研究。
It's also discovery that there is displacement discrepancy in the slide mass along the slip surface, which sets new theoretical base for ground surface deformation analysis and slope failure process.
揭示了滑体沿滑面的滑动位移具有差异性滑动的变形非协调现象，为分析地表变形和滑坡解体过程奠定了新的理论基础。对含碎石粘性土滑坡的不同治理措施进行了系统研究。
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