“C”型覆岩空间结构采场岩层运动规律及动压致灾机理  

Stope rock movement rule of C-shaped of overlying strata spatial structure and disaster-causing mechanism of dynamic pressure

作　　者：侯玮[1] 霍海鹰[2] 

机构地区：[1]河北工程大学资源学院,河北邯郸056038 [2]河北工程大学建筑学院,河北邯郸056038

出　　处：《煤炭学报》2012年第A02期269-274,共6页Journal of China Coal Society

基　　金：国家自然科学基金资助项目(50774012);河北省自然科学基金资助项目(D2010001000)

摘　　要：针对"C"型覆岩空间结构采场采动阶段岩层运动与矿压关系,研究三面采空孤岛采场岩层运动规律,揭示了工作面开采初期和开采期间岩层运动诱发动力灾害规律,通过采动应力环境下静压分析和动压分析以及地质条件多因素耦合的方法总结出三面采空孤岛采场动压致灾机理。结合工程实践,基于微地震定位监测结果揭示"C"型覆岩空间结构应力分布和变化特征,验证了"C"型覆岩空间结构采场采动阶段诱发动力灾害规律。According to the ＂C＂ type of overlying strata spatial structure of mining strata movement and pressure between stages,the authors studied three goaf of stope rock movement regularity of island,and revealed the working face mining and mining strata movement during the early dynamic disasters induced by mining,by using the stress environment of static analysis and dynamic pressure analysis and geological conditions of multi factor coupling method,summarized three goaf of stope pressure disaster-causing mechanism.Combined with practical engineering,the microseismic monitoring results revealed ＂C＂ type of overlying strata spatial structure and stress distribution,change,verified the ＂C＂ type of overlying strata spatial structure of mining stage induced dynamic disasters.

关 键 词：覆岩空间结构 岩层运动 矿山压力 微地震 冲击地压 

分 类 号：TD325[矿业工程—矿井建设]