safety factor of stability

Formula for computing safety factor of slope stability while pile driving has been deduced based on the arc sliding theory, with corresponding calculation program promoted, which has provided the theory foundation and computing method for slope stability in practical project.

在圆弧滑动理论的基础上推导出打桩作用下岸坡稳定安全系数的计算公式，并编制了相应的计算程序，为实际工程中打桩时岸坡稳定性计算提供理论依据和计算方法。

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Finite element iteration method for stability safety factor of known sliding surface

已知滑动面边坡稳定安全系数的有限元迭代解法

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Combining with an engineering example, the dynamic stability factor of the slope was calculated through the pseudo-static method, dynamical finite element slope safety factor time history methods and complete dynamic analysis method.

结合一工程实例，分别用拟静力法、有限元安全系数时程分析法和完全动力分析法求解边坡的动力安全系数，根据计算结果提出了几种合理的评价边坡动力稳定性的方法。

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According to different most likely safety factors and their failure probabilities, we made a divisional chart of slope stability and set up dual index system of slope stability combing safety factor and reliability.

根据不同最大可能安全系数及它的临界破坏概率，绘出边坡稳定性分区图，并建立安全系数和破坏概率相结合的边坡稳定性判别的二元指标体系。

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( 3) The strength reduction method based on FLAC can be adopted to analyze the stability of soil nailing wall, calculate the safety factor, and predict the sliding plane position when the wall is ruined.

采用基于FLAC的强度折减法可以对土钉墙进行稳定性分析，得到安全系数以及发生破坏时的滑移面位置。

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It is unsuitable to evaluate the anti-slide stability of the slope under seismic load by using the minimum slope stability safety factor that occurs at one moment during the process of earthquake.

地震荷载作用下边坡的失稳过程与地震作用过程密切相关，以出现在某一瞬间的时间过程中的最小安全系数作为评价边坡稳定性的指标是不合理的。

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To unknown slip surface slope, ascertaining the location of the critical slip surface is the key problem in the process calculating the slope stability safety factor by traditional methods.

对未知滑动面边坡，临界滑动面位置的确定是传统计算边坡稳定安全系数方法中的关键问题。

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This paper proposes the finite element iteration method for stability safety factor of the known sliding surface.

本文提出了在滑动面已知条件下的边坡抗滑稳定安全系数的弹塑性有限元迭代解法。

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The differences of safety factor quantity, slip surface shape and location between stability method based on slip surface FE stress and shear strength reduction method are compared and studied.

比较研究滑面应力分析法与强度折减法在安全系数大小及滑动面形状和位置的差异。

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The result indicates, there is obvious regularity to the three kinds of strength theory calculate the slope safety factor received, introduce the tri-shear failure theory, the stability of the slope improves to some extent, and the slope tends towards stability further.

结果表明，三种强度理论分别计算得到的边坡安全系数有着明显的规律性，引入三剪强度理论，边坡的稳定性有所提高，边坡更加趋于稳定。

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