粘性土的弹塑性应力应变模型探讨

本文对取自峨眉的粘土进行了常规三轴试验。根据Lade双屈服面弹塑性模型理论，确定了该土的弹塑性模型及其参数。对一组不同墙高的重力式挡土墙进行了有限元分析，其结果与离心模型试验吻合，为计算粘性土的土创造了有利条件。

A Study of Elastoplastic Stress-strain Model for Clay

In order to study the elastoplastic stress-strain properties of Emei clay and the determination of the relevant parameters, the conventional triaxial test with Emei clay including 14 specimens had been performed. In this paper, several gravity retaining walls of different height had been analysed by the finite element method (FEM). The results calculated by the FEM well agreed with those from the model tests on a centrifuge. It is expected that the results will be helpful to create a new method for cal- culating the earth pressure from the clay.