一种采用固结快剪强度指标的应力路径分析法

A new stress path method using consolidated-quick shear strength

本文介绍了一种应用固结快剪强度指标的应力路径法。与传统的基于三轴强度指标应力路径法相比,它能直接求出安全系数K,可以更方便地作为控制软土地基上堆载速率的依据。在一个工程中,对两种应力路径法的应用情况进行了比较,结果表明,新方法能够反映地基的稳定性状态。由于其应用方便,更易于在工程界推广使用。

In this paper,a new stress path method using consolidated-quick shear strength was introduced.Compared with the traditional stress path using the triaxial shear strength,the new method can directly give safety factor K,and it is more convenient in controlling the loading speed in construction on soft ground. The two kinds of stress path methods were compared in a real project. The results show that this method can reasonably predict the safety condition of soft ground under surface load.