基于灰色关联分析的岩爆预测方法研究  

Study on rock burst prediction method based on gray relational analysis theory

作　　者：胡炜[1] 杨兴国[1] 周宏伟[1] 周家文[1] 李洪涛[1] 

机构地区：[1]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065

出　　处：《人民长江》2011年第9期38-42,63,共6页Yangtze River

基　　金：国家自然科学基金资助(40972190);四川大学青年教师基金资助(2008047)

摘　　要：锦屏辅助洞是锦屏一级、二级水电站前期工程的关键施工项目,因其地下埋深较大,地应力较高,具备岩爆发生的必要条件,为避免和减少岩爆造成的损失,采用灰色系统的灰色关联分析理论,开展了锦屏二级水电站辅助洞的岩爆预测预报研究。选取影响岩爆的一些主要因素:最大主应力、单轴抗压强度、点荷载强度、完整性系数和弹性能指数进行岩爆预测分析,所得结果与实际工程情况基本一致,说明了基于灰色关联分析岩爆预测方法的合理性。The auxiliary tunnel of Jinping hydropower station is the key project of earlier stage construction of Jinping I,II hydropower station.Due to its deep buried depth and high geo-stress,rock burst may happen.In order to avoid and reduce the loss caused by rock burst,prediction and forecast for rock burst in the auxiliary tunnel are carried out using gray correlation analysis theory;some primary factors closely related to rock burst are selected to forecast rock burst such as the maximum principal stress,single axial compressive strength,point load strength,integrity coefficient and elastic energy index.The result is consistent with the in-situ situation,showing that the gray correlation analysis theory is rational for predicting rock burst.

关 键 词：岩爆 预测分析 灰色关联分析 辅助洞 锦屏二级水电站 

分 类 号：TU45[建筑科学—岩土工程]