The slope stability analysis is studied with the nonlinear failure criterion based on the plastic upper limit theorem.
利用塑性分析上限定理，考虑岩土介质本身的非线性破坏准则，对各种不同破裂面边坡稳定性分析进行研究。
The Category 2 stability(plastic buckling stability) thereof is particularly important because it can truly represent the history of failure of the bridge.
稳定是拱桥设计和施工过程中必须关注的关键性问题，而二类稳定能比较真实地反映拱桥的破坏历程，尤为重要。
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