上限法在加筋土结构物稳定性分析中的应用

将极限分析上限法用于加筋土结构物稳定性分析的关键是滑动面上内力功如何计算的问题。在总结了基于传统塑性理论上限法内力功的计算方法的基础上，将基于广义塑性理论的上限法应用到杨俊杰的内力功计算方法中。对比基于传统和广义塑性理论的上限解及离心试验结果，认为基于传统塑性理论的上限法应用简单，计算结果基本可靠；基于广义塑性理论的上限法虽然理论上比较完善，但当滑动面为曲线时，应用繁琐。

Application of upper bound method to stability analysis of reinforcement

The upper bound method of limit analysis can be used for the stability analysis of reinforced earth; the internal works on the slip plane is the crux of the stability analysis. Firstly, the methods of calculating internal works on the slip plane based on the classical plasticity theory of upper bound method are summed up. Then the upper bound method based on the generalized plasticity theory is used to Yang junjie’s method about calculating the internal works on the slip plane. Comparing the upper bound method both based on the classical and generalized plasticity theory and the centrifuge test results, it is shown that the upper bound method based on the classical plasticity theory is simple and clear; the computed result is reliable, although the upper-bound method based on the generalized plasticity theory is more perfect; it is difficult to use when that the slip surface to be an curve plane.