Finite element simulation of excavation and support of abutment slope at Dagangshan Hydropower Project

QI Zu-fang; TANG Zhong-min; JIANG Qing-hui; WEI Wei; PAN Shao-hua

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Finite element simulation of excavation and support of abutment slope at Dagangshan Hydropower Project

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- Finite element simulation of excavation and support of abutment slope at Dagangshan Hydropower Project
- Vol. 29, Issue S1, (2008)
- 作者机构：
  
  1. 武汉大学水资源与水电工程科学国家重点实验室,武汉,430072
  2. 中国水电顾问集团成都勘测设计研究院,四川,成都,610072
- 作者简介：
- 基金信息：
- DOI：
  CLC： O242.21
- Online First：15 April 2016，
  
  Published：2008
- 稿件说明：
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QI Zu-fang, TANG Zhong-min, JIANG Qing-hui, et al. Finite element simulation of excavation and support of abutment slope at Dagangshan Hydropower Project[J]. 2008, 29(S1).
DOI：

QI Zu-fang, TANG Zhong-min, JIANG Qing-hui, et al. Finite element simulation of excavation and support of abutment slope at Dagangshan Hydropower Project[J]. 2008, 29(S1). DOI：

摘要

大岗山水电站坝肩边坡地质条件复杂，断层、岩脉、卸荷裂隙密集带、深部卸荷带及节理裂隙发育。为对该边坡在开挖支护过程中的应力、变形情况进行分析，采用弹黏塑性有限元软件EVP3D，利用弹塑性有限元法进行边坡稳定性的三维有限元计算，揭示边坡可能的失稳部位，对初拟的施工程序的合理性进行评价，并对边坡的支护方案提出建议。

Abstract

The abutment slope at Dagangshan Hydropower Project has complex geological conditions with faults

dikes

unloading crack intensive belt

deep unloading belt and developed joint fissures. In order to analyse the stress and deformation of the slope during the slope excavation and support

3D elastoplastic finite element simulation is performed with elastoplastic finite element method by the elasto-viscoplastic finite element software EVP3D

the possible failure location of the slope can be revealed

and the effectiveness of a suggested construction procedure can be evaluated. A suggestion for the supporting scheme is proposed.

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