stability reduction

An elastoplastic shear strength reduction FEM is used to analyze the stability of excavation slope.

用强度折减有限元方法对开挖边坡的稳定性进行了较为全面的研究.

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Half-pipe jacket ; positive pressure; negative pressure; strength destruction; stability reduction.

半管式夹套; 正压; 负压; 强度破环; 失稳.

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Numerical examples show that high brittleness index can improve the bearing capacity stability of the structure and the existence of crack set up in advance will increase the ductility of the structure, but it may result in the reduction of ultimate bearing capacity.

数值计算表明：增加脆性指数可以提高结构的承载稳定性；初始预制缝可以增加结构延性但会降低极限承载力。

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The limit equilibrium method and finite element analysis method are currently the main method of slope stability analysis. Finite element method includes finite element strength reduction and FE slope method based on slip stress.

极限平衡法和有限元分析方法是目前进行边坡稳定分析的主要方法，其中有限元法包括有限元强度折减法和滑面应力分析法。

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Application of strength reduction finite element method to stability calculation of tailing dam

强度折减有限元法在尾矿坝稳定计算中的应用

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Methods Open reduction and internal fixation of the medial, lateral and the posterior malleolar fracture were used. The separation of the tibiofibular joint was fixed with a long screw or a bolt to keep the stability of the ankle mortise.

方法手术复位，内固定外踝、内踝或后踝骨折，有胫腓关节分离者用长螺钉或骨栓固定，以维持踝穴的稳定。

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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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When using the 3D elastic-plastic contact FEM strength reduction method to compute the stability coefficient of debris-soil landslides, the space effect of the sliding mass may be considered in order the calculation results to be more accurate.

研究结果表明，采用三维弹塑性接触有限元强度折减法计算碎石土滑坡的稳定性系数，可以考虑滑坡体的空间效应，使计算结果更加精确；

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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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Study on Failure Criterion of Slope Stability Analysis by Strength Reduction Finite Element Method

土坡稳定分析有限元强度折减法的失稳判据探讨

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