基于微震监测的“滞后型”动力灾害控制技术研究
发布时间:2019-03-19 10:38
【摘要】:为了研究某矿N2105工作面采空区后方进风巷发生"滞后型"动力灾害的原因,首先分别从力学角度、顶板岩梁组合角度和地质角度对该工作面发生"滞后型"动力灾害的原因进行了分析,其次采用FLAC3D数值模拟软件对理论分析结果进行验证,最后建立微震监测系统作为N2105工作面动力灾害的控制技术手段。研究结果表明,采空区后方进风巷发生"滞后型"动力灾害是由构造应力、煤柱侧向支承应力和采场后方支承应力相互叠加共同作用的结果;采用微震监测技术可以实现三维、实时、连续的动力灾害监测和预警工作,可为矿井动力灾害防治工作提供一定的指导和帮助。
[Abstract]:In order to study the cause of "lag type" dynamic disaster in the back of goaf in N2105 working face of a certain mine, first of all, from the mechanical point of view, Roof rock beam combination angle and geological angle are used to analyze the cause of "lag type" dynamic disaster in this working face. Secondly, the theoretical analysis results are verified by FLAC3D numerical simulation software. Finally, the micro-seismic monitoring system is established as a technical means to control the dynamic disaster in N2105 working face. The results show that the "lag type" dynamic disaster occurred in the rear inlet roadway of goaf is caused by the interaction of the structural stress, the lateral support stress of coal pillar and the supporting stress of the back of the stope. Three-dimensional, real-time and continuous monitoring and early warning of dynamic disasters can be achieved by using micro-seismic monitoring technology, which can provide some guidance and help for the prevention and treatment of dynamic disasters in mines.
【作者单位】: 中石化华北油气分公司石油工程技术研究院;
【分类号】:TD32
[Abstract]:In order to study the cause of "lag type" dynamic disaster in the back of goaf in N2105 working face of a certain mine, first of all, from the mechanical point of view, Roof rock beam combination angle and geological angle are used to analyze the cause of "lag type" dynamic disaster in this working face. Secondly, the theoretical analysis results are verified by FLAC3D numerical simulation software. Finally, the micro-seismic monitoring system is established as a technical means to control the dynamic disaster in N2105 working face. The results show that the "lag type" dynamic disaster occurred in the rear inlet roadway of goaf is caused by the interaction of the structural stress, the lateral support stress of coal pillar and the supporting stress of the back of the stope. Three-dimensional, real-time and continuous monitoring and early warning of dynamic disasters can be achieved by using micro-seismic monitoring technology, which can provide some guidance and help for the prevention and treatment of dynamic disasters in mines.
【作者单位】: 中石化华北油气分公司石油工程技术研究院;
【分类号】:TD32
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