Numerical computation and analysis of fracturing problems of concrete dam owing to freezing and thawing

LI Shou-ju; LIU Ying-xi; CHEN Chang-lin; LI Zheng-guo

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Numerical computation and analysis of fracturing problems of concrete dam owing to freezing and thawing

更新时间：2026-06-25

- Numerical computation and analysis of fracturing problems of concrete dam owing to freezing and thawing
- Vol. 25, Issue 2, (2004)
- 作者机构：
  
  1. 大连理工大学工业装备结构分析国家重点实验室,辽宁,大连,116024
  2. 丰满发电厂,吉林,吉林,132108
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU528
- Online First：15 July 2014，
  
  Published：2004
- 稿件说明：
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LI Shou-ju, LIU Ying-xi, CHEN Chang-lin, et al. Numerical computation and analysis of fracturing problems of concrete dam owing to freezing and thawing[J]. 2004, 25(2).
DOI：

LI Shou-ju, LIU Ying-xi, CHEN Chang-lin, et al. Numerical computation and analysis of fracturing problems of concrete dam owing to freezing and thawing[J]. 2004, 25(2). DOI：

摘要

根据大坝上游水库水温和气温观测资料，建立了大坝上游水库水温和当地气温的回归模型。采用有限元数值计算方法，分析了混凝土大坝的温度场，研究了混凝土大坝由于气温变化引起的应力场交替变化。研究表明，由于气温随季节的交替变化，大坝下游面浅层的最大主应力远大于混凝土的抗拉强度，进而导致混凝土大坝下游面的冻融老化甚至破坏。计算结果表明，有限元数值模拟结果与现场勘查结果基本一致。

Abstract

Based on the measuring water temperatures and weather temperatures

the regression models of water temperatures and weather temperatures in different seasons were proposed. By making use of finite element method

the temperature fields of concrete dam in different seasons were investigated

and then the changes of stress fields of concrete dam were analyzed because the weather temperature changes seriously with seasons in the cold regions. The research shows that the first principal stress of concrete dam near downstream surface can be over the tensile strength of concrete

and bring about freezing and thawing deterioration in concrete dam. The numerically computational results demonstrate that the simulating values with finite element method can approach to in-situ prospecting values.

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