三峡工程二期围堰防渗心墙的应力和变形分析

The Stress-Strain Analysis of Plastic and Rigid Concrete Diaphragm Walls of Second-Stage Cofferdam on the Three Gorges Project

本文采用非线性有限元的分析方法,对三峡工程二期围堰的塑性与刚性混凝土防渗心墙方案进行了对比研究,探讨了塑性与刚性混凝土防渗墙的工作性状,以及堰体抛填料和局部振密措施对防渗墙位移和应力的影响。

In this paper comparison between plastic and rigid concrete diaphragm core wall of 2nd-stage cofferdam of Three Gorges Project is made by nonlinear FEM. The performance of the di aphragm is studied. The influence of dumped material of shell and vibrating compaction on displace ment and stress of the diaphragm are also studied.