火成岩侵入条件下被保护层掘进工作面瓦斯异常涌出原因分析  

Analysis on the cause of abnormal gas emission in the driving face of the protected layer under the condition of igneous rock intrusion

作　　者：邓欣雨 柳东明 刘鹏 DENG Xinyu;LIU Dongming;LIU Peng(Tiefa Coal Industry Group Daqiang Coal Mine Co.,Ltd.,Shenyang Liaoning 110514,China;China Coal Technology and Engineering Group Shenyang Research Institute,Fushun Liaoning 113122,China;State Key Laboratory of Coal Mine Safety Technology,Fushun Liaoning 113122,China;Tieling Emergency Management Bureau,Tieling Liaoning 112000,China)

机构地区：[1]铁法煤业(集团)大强煤矿有限责任公司,辽宁沈阳110514 [2]煤科集团沈阳研究院有限公司,辽宁抚顺113122 [3]煤矿安全技术国家重点实验室,辽宁抚顺113122 [4]铁岭市应急管理局,辽宁铁岭112000

出　　处：《山西化工》2020年第6期67-70,共4页Shanxi Chemical Industry

基　　金：国家重点研发计划资助项目(2017YFC0805206);辽宁省科学技术计划-社发攻关及产业化指导计划(2019JH8/10300099);中国煤炭科工集团有限公司科技创新创业资金专项项目-青年项目(2018-2-QN012)。

摘　　要：瓦斯异常涌出轻则会导致工作面瓦斯浓度超限,电器设备断电,影响正常采掘工作;重则会引发瓦斯爆炸或煤与瓦斯突出事故,严重威胁井下作业人员的生命安全。南五903掘进工作面处于被保护范围内,该工作面受火成岩侵入影响严重。当工作面掘进至288 m处,在距迎头3 m施工顶板锚索孔时发生喷孔现象,工作面甲烷传感器瞬时达1.5%,人员被迫撤至回顺口新鲜风流中。为防止发生瓦斯事故,需对此次瓦斯异常涌出原因进行细致分析,为制定针对性的防治措施提供指导,进而保障工作面安全生产。The abnormal gas emission will lead to the gas concentration exceeding the limit in the working face,and the broken weight of electrical equipment will cause gas explosion or coal and gas outburst accidents,which will seriously threaten the safety of underground operators.South NO.5903 driving face is in the protected area,which is seriously affected by igneous rock intrusion.When the working face is excavated to 288 m,the phenomenon of shotcreting occurs when the anchor cable hole of the roof is constructed 3 m away from the head,and the methane sensor of the working face reaches 1.5%.The personnel were forced to withdraw to the fresh air flow at Shunkou.In order to prevent the occurrence of gas accidents,it is necessary to analyze the causes of the abnormal gas emission in detail,and provide guidance for the formulation of targeted prevention measures,so as to ensure the safety of production in the working face.

关 键 词：瓦斯异常涌出 保护范围 火成岩侵入 原因分析 

分 类 号：TD712[矿业工程—矿井通风与安全]