西南某电站辅助隧洞岩爆岩石试验研究  

Research of Rock Test for Rock Burst in the Subsidiary Tunnel of a Hydropower Station in Southwest China

作　　者：李育枢[1] 李天斌[1] 郑建国[2] 

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都610059 [2]四川省交通厅公路规划勘察设计研究院．四川成都610041

出　　处：《水力发电》2009年第6期15-18,43,共5页Water Power

基　　金：四川省青年科技基金资助项目(03ZQ026-045)

摘　　要：在分析、总结西南某电站交通辅助隧洞岩爆发育特征的基础上,通过岩石单轴应力-应变全过程试验和岩石弹性能量指数测试,研究岩爆产生的基本条件,然后通过岩石断口扫描电镜分析和卸荷三轴试验,分别从微观和宏观角度探讨不同烈度岩爆的破裂机理和形成力学机制。The typical development character of rock burst in the subsidiary tunnel for traffic of a hydroelectric power station in Southwest China is first analyzed and summarized, then the basic condition for producing rock bust is ells- cussed with the results of stress-strain full process in rock uniaxial compression and of Wd test for rock burst tendency index. At last, the rock burst failure mechanism of different intensity grade is analysed from microscopic and macroscopic views respectively on the base of the SEM analysis of rock failure surface and the rock triaxial unload test.

关 键 词：交通辅助隧洞 岩爆 扫描电镜分析 卸荷三轴试验 

分 类 号：U452.27[建筑科学—桥梁与隧道工程]