土坡稳定问题的塑性极限分析法与惯用的极限平衡分析法不同的是它考虑了土的应力——应变关系，属土坡稳定分析的新技术。
The plasticity analyses for stability problems is differentiated from the conventional limit equilibrium method by the former in consideration of the soil's stress-strain relationship.
滑坡是土坡重力侵蚀破坏的主要形式，在目前的工程实践中，土坡稳定性分析最常用的方法是圆弧条分法。
Landslide is the main failure form of earth slope under gravity erosion. In engineering practice, the circle sliced method is popularly used in slope stability assessment.
本文在现有变分法求解土坡稳定的基础上，推导了一种能适用于任意有对称面的非均质土坡的稳定分析方法。
A new slope stability analysis method, explicitly satisfying all limiting-equilibrium equations, is presented. To make the problem statically determinate, the variational approach is used.
结果表明：文中建议的两种土坡三维破坏模式更适用于坡顶局部压力下的三维土坡稳定分析研究。
Finally, it was pointed out that the present two three-dimensional failure mechanism was reasonable and appropriate to be used as an engineering tool for slope stability analyses.
结果表明：文中建议的两种土坡三维破坏模式更适用于坡顶局部压力下的三维土坡稳定分析研究。
Finally, it was pointed out that the present two three-dimensional failure mechanism was reasonable and appropriate to be used as an engineering tool for slope stability analyses.
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