某抽水蓄能电站地下厂房区地应力场特性及稳定性分析  

In-Situ Stress Field Characteristics and Stability Analysis in Underground Powerhouse Area of a Pumped Storage Power Station

作　　者：韦敏鹏 韩任清 苟廷海 WEI Minpeng;HAN Renqing;GOU Tinghai(China Energy Engineering Group Guangxi Electric Power Design Institute Co.,Ltd.,Nanning 530007 China)

机构地区：[1]中国能源建设集团广西电力设计研究院有限公司,广西南宁530007

出　　处：《红水河》2025年第1期62-66,共5页

摘　　要：地应力场特性对抽水蓄能电站建设至关重要。笔者采用水压致裂法对某抽水蓄能电站的地下厂房地应力进行现场测量,并对地应力场的特性及其稳定性进行系统的分析。结果表明,该抽水蓄能电站地下厂房区域处于中等应力区环境,最大水平主应力方向为NW向,地下厂房埋深处围岩可能有岩爆现象。该研究结果为围岩岩爆预测及洞轴线布置提供相应数据支撑。The characteristics of in-situ stress field are very important to the construction of pumped storage power station.In this paper the hydraulic fracturing method is used to measure the in-situ stress of the underground powerhouse of a pumped storage power station and the characteristics and stability of the in-situ stress field are systematically analyzed.The results show that the underground powerhouse area of the pumped storage power station is in the medium stress zone environment the maximum horizontal principal stress direction is NW and the surrounding rock at the buried depth of the underground powerhouse may have rock burst phenomenon.The research results provide corresponding data support for the prediction of rock burst and the arrangement of tunnel axis.

关 键 词：地应力场 地下厂房 水压致裂法 稳定性分析 抽水蓄能电站 

分 类 号：TV743[水利工程—水利水电工程]