成庄矿煤岩破坏电磁辐射特性及其应用研究  

Research on electric magnetic radiation features of coal and rock failure in Chengzhuang Mine and application

作　　者：聂百胜[1] 翟盛锐[1] 刘文波[1] 高虹[1] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院

出　　处：《煤炭科学技术》2007年第2期58-61,共4页Coal Science and Technology

基　　金：国家自然科学基金仪器专项(50427401);国家重点基础研究发展计划(2005CB221502);国家"十五"科技攻关计划(2005BA813B-3-016)

摘　　要：利用电磁辐射信号采集试验系统,研究了晋煤集团成庄矿煤岩在单轴压缩、拉伸、剪切破坏条件下的电磁辐射和声发射特性。试验结果表明,煤岩变形破坏过程中有电磁辐射信号产生,受载煤岩产生的电磁辐射与变形破裂过程紧密相关,基本成正比关系;经过与同步测试的声发射信号相比,发现电磁辐射信号更丰富。现场利用煤岩破坏的电磁辐射监测技术可以定量研究工作面推进基本顶来压、顶板周期来压的动态变化规律。With the electric magnetic radiation signal collection test system,the paper studied the electric magnetic radiation and sound transmission features of coal and rock under the axial compression,tension and shearing failure conditions.The test results showed that there are electric magnetic radiation signals occurred during the coal and rock deformation period.The electric magnetic radiation from the loaded coal and rock had a closed relationship with the deformation failure process.There is a direct ratio r...

关 键 词：煤岩变形破裂 加载 电磁辐射 应力 周期来压 

分 类 号：TD313[矿业工程—矿井建设]