Stability analysis for random key block of underground 
power house of Three Gorges Project

SHENG Qian; HUANG Zheng-jia; WU Ai-qing

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Stability analysis for random key block of underground power house of Three Gorges Project

更新时间：2026-06-25

- Stability analysis for random key block of underground power house of Three Gorges Project
- Vol. 23, Issue 6, (2002)
- 作者机构：
  
  1. 中国科学院武汉岩土所岩土力学重点试验室,湖北,武汉,430071
  2. 长江科学院,湖北,武汉,430019
- 作者简介：
- 基金信息：
- DOI：
  CLC： TV731+.6
- Online First：04 September 2016，
  
  Published：2002
- 稿件说明：
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SHENG Qian, HUANG Zheng-jia, WU Ai-qing. Stability analysis for random key block of underground power house of Three Gorges Project[J]. 2002, 23(6).
DOI：

SHENG Qian, HUANG Zheng-jia, WU Ai-qing. Stability analysis for random key block of underground power house of Three Gorges Project[J]. 2002, 23(6). DOI：

摘要

应用块体理论、正交设计方法对三峡地下厂房围岩中裂隙可能构成的随机块体类型、几何特征与稳定进行了分析。所获结果表明：三峡地下厂房的随机块体的虽然稳定性较好，但最大埋深仍可达7~8 m，为确保围岩的稳定，系统锚杆的支护长度应大于7 m。

Abstract

With the block theory and orthogonal design method

the type and geometrical characterstics and stability of random key block in underground power house of the Three Gorges project are analysed. It is showed that the depth of key block in rockmass is possible to have 7-8 m although the stability of random key block in the underground power house is better; and that the embedded length of system bolts shall be greater than 7 m so as to guarantee the stability of rockmass.

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Related Institution

College of Civil Engineering, Chongqing University

State Key Laboratory of Geological Hazard Prevention and Geoenvirronment Protection, Chengdu University of Technology

中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室，武汉 430071 2. 湖北清江水电开发有限责任公司

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