两种高土石坝应力变形的特性对比分析

Comparison and Analysis for Stress Deformation Characters of Two Kinds of High Earth-rock Dams

土石坝是当今坝工设计中最为重要的坝型之一,特点施工工艺简单、工程造价低、适应地质能力强等。这种坝型中高土石坝占据了很大比例,在对其进行分析不仅有坝体稳定性和防渗研究,还应包括应力应变。文章采用有限元计算方法,结合工程实例分别对黏土心墙坝与黏土斜心墙坝两种不同坝型进行分析,通过计算得出两种不同坝型的应力应变分布情况并与工程实测数据进行对比,其成果对类似工程具有一定的参考价值。

The earth-rock dam is one of the most important dam type in current dam construction design,its character is simple construction technology,low project cost and strong geological capability,etc,.High earth-rock dam is making up a large share in this kind of dam type,and analysis for it should include not only stability of dam body and study of seepage but also include stress and strain. The finite element calculation method was adopted in this paper,combined with the project cases,two kinds of different dam types,clay core wall dam and clay sloping core dam were analyzed,the stress and strain distribution was carried out through calculation,compared with observed data about the project,its achievements would supply a certain reference value for similar projects.