东非某水电站地下洞室群开挖过程围岩力学行为演化及分析  

Mechanical Behaviors Evolution and Analysis During Excavation for Underground Cavern Group Surrounding Rock of a Hydropower Plant in East Africa

作　　者：章奇锋 李华 向天兵 杨凡杰[3] 张传庆[3] ZHANG Qi-feng;LI Hua;XIANG Tian-bing;YANG Fan-jie;ZHANG Chuan-qing(Zhejiang Huadong Construction Engineering Co. Ltd., Hangzhou 310014, China;Kunming Engineering Corporation Limited, Kunming 650051, China;Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071,China)

机构地区：[1]浙江华东建设工程有限公司,杭州310014 [2]中国电建集团昆明勘测设计研究院有限公司,昆明650051 [3]中国科学院武汉岩土力学研究所,武汉430071

出　　处：《工程建设与设计》2018年第10期137-138,共2页Construction & Design for Engineering

摘　　要：以东非某水电站为例,通过三维数值模拟,分析地下洞室群开挖过程中围岩力学行为的演化,并进行稳定性分析,计算及分析结果表明,洞室整体稳定性较好,应力松弛部位应加强支护。分析结论可为项目的开挖和支护设计提供依据。For a hydropower plant in east Africa, 3-D numerical simulation is used for mechanical behaviors evolution and stability analysis during excavation for underground cavern group surrounding rock. The calculation and analysis results show the general stability is good and the stress relaxation parts need reinforced supporting, which provides reference for excavation and supporting design.

关 键 词：东非 水电站 围岩 力学行为 

分 类 号：TV753[水利工程—水利水电工程] TV223.31