山西长平矿保护层掘进工作面动力破坏机制及防治技术

Failure mechanism and control technology in protective layer heading face of Changping mine

以长平矿保护层掘进工作面动力显现为工程背景,通过保护层掘进工作面动力现象发生过程分析,结合现场调研和瓦斯参数测定,分析确定长平矿保护层掘进工作面前方赋存的DX19陷落柱是工作面破坏的根本原因。揭示了陷落柱为掘进工作面发生煤体压出破坏提供了能量基础和物质来源的机制。提出了掘进工作面防治矿井动力灾害的"预测+解危+动力灾害识别培训"的综合防治措施,研究成果可为类似条件矿井动力灾害的预测和防治提供借鉴。

Based on heading face dynamic appeared in protective layer of Changping mine for the engineering background.Reveals the root cause of dynamic phenomenon in protective layer heading face of Changping which is the DX19 collapse column in front of it,by the generating process analysis,field investigation and gas parameter determination.The collapse column provides energy base and material sources for coal extrusion in heading face.The 'forecast+Precaution Measures+recognition training of dynamic disaster 'comprehensive prevention and control measures was put forward of mine dynamic disaster in heading face.Research results can be provided reference for mine dynamic disaster prevention and control to the similar condition.