白鹤滩水电站左岸地下主副厂房上部开挖围岩稳定监测分析  

Monitoring Analysis of Rock Stability of Excavation of Upper Part of Underground Main Power House in Baihetan Hydropower Station

作　　者：胡旭阳[1] 朱赵辉 李秀文 刘健 Hu Xuyang Zhu Zhaohui Li Xiuwen Liu Jian(China Three Gorges Corporation, Beijing 100038, China China Institute of Water Resources and Hy dropower Research, Beijing 100038, China Beijing IWHR Co., Ltd., Beijing 100048, China)

机构地区：[1]中国长江三峡集团公司,北京100038 [2]中国水利科学研究院,北京100038 [3]北京中水科工程公司,北京100048

出　　处：《三峡大学学报（自然科学版）》2016年第5期36-40,52,共6页Journal of China Three Gorges University：Natural Sciences

基　　金：国家重点基础研究发展计划项目(2013CB035900)

摘　　要：白鹤滩水电站左岸地下厂房为国内特大型地下工程,地质条件复杂,洞室稳定及安全问题成为工程重点关注和研究的内容之一.为了解洞室围岩的实际变形特性,调整支护参数,布置了较为全面的安全监测系统.本文主要介绍了地下厂房上部开挖过程的围岩变形及锚固效果监测,监测结果表明,由于开挖支护控制较好,围岩变形和受力状态正常;并通过对开挖全过程变形监测资料的分析,获得了开挖过程对围岩变形的影响范围,本实例可供同类工程借鉴与参考.Underground power house on the left bank of Baihetan Hydropower Station is the most large un- derground engineering in China. The dam base＇s geological conditions are complicated; stability and security of rock openings become one of the key issues. In order to understand the actual deformation characteristics of rock and to adjust support parameters, a more comprehensive security monitoring system is laid. This paper describes the anchoring effect and surrounding rock deformation monitoring about the excavation process of the upper part of underground power house. The monitoring results show that, due to better control of the excavation and support, surrounding rock deformation and stress state is normal; and through analyzing the deformation monitoring data about entire process of excavation, the sphere of influence of excavation on sur- rounding rock is obtained. This example is available for reference to similar projects.

关 键 词：地下主厂房 围岩变形 围岩锚固 应力状态 安全监测 

分 类 号：TV731.6[水利工程—水利水电工程]