Study on stability and anchoring effect of jointedrock mass of an underground powerhouse

LI Shu-cai; CHEN Wei-zhong; ZHU Wei-shen; QIU Xang-bo

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Study on stability and anchoring effect of jointedrock mass of an underground powerhouse

更新时间：2026-06-25

- Study on stability and anchoring effect of jointedrock mass of an underground powerhouse
- Vol. 24, Issue 4, (2003)
- 作者机构：
  
  1. 中国科学院武汉岩土力学研究所岩土力学重点实验室,武汉,430071
  2. 山东大学岩土与结构工程研究中心,济南,250061
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU457
- Online First：19 August 2014，
  
  Published：2003
- 稿件说明：
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LI Shu-cai, CHEN Wei-zhong, ZHU Wei-shen, et al. Study on stability and anchoring effect of jointedrock mass of an underground powerhouse[J]. 2003, 24(4).
DOI：

LI Shu-cai, CHEN Wei-zhong, ZHU Wei-shen, et al. Study on stability and anchoring effect of jointedrock mass of an underground powerhouse[J]. 2003, 24(4). DOI：

摘要

某地下电站厂房围岩属于一种断续节理裂隙切割的节理岩体，其围岩采用了锚杆、锚索加固。作者采用三维断续节理岩体的弹性损伤本构模型、损伤演化方程及损伤岩锚柱单元支护模型分析围岩加固前后的稳定情况，结果表明，能较好地反应围岩的渐近破坏过程和锚杆（索）的加固效果。这些理论成果对设计有参考价值，并对工程实践有指导意义。

Abstract

The surrounding rock mass of an underground powerhouse under the three Gorges right bank is one kind of jointed rock mass cut by discontinuous joint. Several kinds of bolts and tendons are used to reinforce surrounding rock mass for reducing the damage evolution zones of joints and confining deformation of the surrounding rock mass. According to the theory of self-consistence and the energy generated in the process of sub-cracks propogation

3D elastic-plastic fracture-damage constitutive model and damage evolution equation are derived. Furthermore

a damage cylindrical element model for calculating anchoring effect is developed .Then these models are used to analyze the stability and optimize the support scheme of the right bank underground powerhouse of the Three Gorges Project. Some beneficial conclusion and advice are obtained that can be used to instruct the construetion.

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Related Institution

State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing)

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