软粘土土坡稳定的二维、三维有限元对比分析

本文利用弹塑性有限元程序对软粘土土坡在自重作用下及在坡顶受有均布荷载情况下的应力、位移的分布进行了二维及三维的有限元对比分析，并通过对比分析对土坡在不同的受力情况下的破坏形式及土坡的破坏机制进行了探讨，同时提出了一种在有限元计算中确定土坡破坏的标准。

The comparison o soft clay slope stability using 2-D and 3-D FEM

In this paper, 2-D and 3-D FEM based on elastoplastic model are used to alculate the stress and displacement of the soft clay slope. The stress distribution shows that the 3-D boundary effect varies with the stress level of the whole slope. Accordingly, a failure standard is established. At the same time, it is found that the failure is in different mode if the slope is under different stress state.