Destructive Criteria for Highway Thick Filling Area Based on Stress Path Analysis

摘要

In the course of construction ,the free pore water in the saturation soil of highway foundation is seldom discharged immediately, and the excess pore water pressure comes into being ,which result in the delay of consolidation and time limit for a project, this problem are disposed by post-processing. Based on the variational rule of total stress, pore water pressure and effective stress in the foundation, the stabilization, the occasion and the effect of treatment are determined. So, the key of stress-path method is corresponding relation between failure state and stress-path point. The foundatin of destructive criteria based on stress-path analysis, which offer theoretical gist for the design of post-process and may be used as a reference in similar project.