巷道掘进过程中煤炮现象发生范围及机理研究  

Research of Action Range and Mechanism of Coal-gun Phenomenon in Drifting Process

作　　者：王军辉 李宝富[2] 张涛 

机构地区：[1]义马煤业集团常村煤矿,河南义马472300 [2]河南理工大学能源学院,河南焦作454000

出　　处：《工矿自动化》2010年第7期39-41,共3页Journal Of Mine Automation

基　　金：河南省教育厅自然科学研究计划项目(2009B440009);河南理工大学青年基金资助项目(Q2009-10)

摘　　要：为了说明煤炮现象的发生范围和发生机理,采用RFPA2D数值计算软件对某煤矿巷道掘进过程中围岩的变形破坏过程和声发射现象进行了数值模拟研究。研究结果表明,矿井工作面回采巷道发生的煤炮现象是在巷道两帮15 m及顶板约10 m范围内在巷道变形破坏过程中积聚的大量弹性能量释放的过程,是一种能级相对较小的动力现象,不是冲击地压发生的前兆信息。In order to explain action range and mechanism of coal-gun phenomenon,numerical simulation research was maken for deforming and destroyed process and acoustic emission phenomenon of surrounding rock in drifting process of a coal mine by use of RFPA^（2D） numerical calculation software.The simulation result showed that coal-gun phenomenon takes place in range of 15 m away from two sides of tunnel and 10 m away from roof in extraction tunnels of mine working face,and the phenomenon is a releasing process of huge amounts of elastic energy accumulated in process of deformation and destroy of tunnel,and it is only a dynamical phenomenon with relatively small energy,not portent information of rock burst.

关 键 词：矿井 工作面 巷道掘进 煤炮 冲击地压:声发射 数值模拟 RFPA2D 

分 类 号：TD315[矿业工程—矿井建设]