Analysis of influence of Baihetan arch dam thrust on dam abutment

WANG Rui-hong; LI Jian-lin; JIANG Yu-zhou; LIU Jie; ZHOU Ji-fang

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Analysis of influence of Baihetan arch dam thrust on dam abutment

更新时间：2026-06-25

- Analysis of influence of Baihetan arch dam thrust on dam abutment
- Vol. 29, Issue S1, (2008)
- 作者机构：
  
  1. 三峡大学三峡库区地质灾害教育部重点实验室,湖北,宜昌,443002
  2. 河海大学岩土工程研究所,南京,210098
  3. 武汉大学水利水电学院,武汉,430072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TV642
- Online First：15 April 2016，
  
  Published：2008
- 稿件说明：
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WANG Rui-hong, LI Jian-lin, JIANG Yu-zhou, et al. Analysis of influence of Baihetan arch dam thrust on dam abutment[J]. 2008, 29(S1).
DOI：

WANG Rui-hong, LI Jian-lin, JIANG Yu-zhou, et al. Analysis of influence of Baihetan arch dam thrust on dam abutment[J]. 2008, 29(S1). DOI：

摘要

对于地质条件复杂的高拱坝，坝肩的变形及稳定性对拱坝的受力状态有很大的影响，在研究过程中必须考虑拱坝与坝肩之间的相互作用。为降低三维有限元建模的难度和更好地模拟坝肩复杂的地质构造，分别建立坝肩和拱坝的有限元模型，采用试算迭代的方法考虑二者之间的相互作用；并运用卸荷岩体力学理论的方法分析坝肩岩体开挖卸荷后，在拱坝推力作用下的应力应变情况。结果表明，考虑拱坝推力后坝肩槽上、下游边坡位移变化不大，变幅在1 cm左右；拱坝推力对拱端边坡有比较明显的影响，在推力作用下，边坡向坡内有一定的变形。

Abstract

The deformation and stability of dam abutment have great influence on stress states of arch dam under complicated geological conditions. It is necessary to consider the interaction between arch dam and dam abutment. In order to built three- dimensional finite element model easier and describe complicated geological conditions better

arch dam finite element model and dam abutment finite element model are built respectively and the iterative calculation method is adopted to simulate the interaction between them. Based on the theory of unloading rock mass mechanics

the stress-strain state of dam abutment rock mass is studied under thrust force of arch dam after excavation unloading. The results show that the displacements of abutment slot both upstream and downstream are not remarkable. The effect of the dam thrust against the slope displacement can not be neglected.

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