岩浆岩侵入煤层瓦斯赋存规律及防突对策研究  

Study on Gas Occurrence Law and Outburst Prevention Countermeasures of Igneous Rock Intrusion Coal Seam

作　　者：李治理 王一彤 郄利敏 Li Zhili;Wang Yitong;Qie Limin(Yongmei Group Co.,Ltd.,Henan Shangqiu 476600)

机构地区：[1]永煤集团股份有限公司,河南商丘476600

出　　处：《山东煤炭科技》2023年第6期107-109,116,共4页Shandong Coal Science and Technology

摘　　要：针对永夏矿区岩浆岩侵入造成的采掘与防突问题,通过研究煤层受岩浆侵入形式和特征并结合瓦斯地质图,得出了浅部煤层瓦斯逸散、深部煤成岩脉阻隔局部瓦斯富集的规律,同时岩浆侵入直接影响煤体组分比例,其灰分、挥发分、孔隙率、钻屑量等指标与侵入距离无梯度关系,最后提出了岩浆侵入分类分级防突措施指导意见。In view of the problems of mining and outburst prevention caused by igneous rock intrusion in Yongxia Mining Area,by studying the forms and characteristics of magmatic intrusion in coal seams and combining with the gas geological map,the laws of gas escape in shallow part coal seams and local gas enrichment blocked by deep part coal diagenetic veins are obtained.At the same time,magmatic intrusion directly affects the proportion of coal body components,and its ash,volatile matter,porosity,drilling cuttings amount and other indicators have no gradient relationship with the intrusion distance.Finally,guidance on magma intrusion classification,grading,and outburst prevention measures is proposed.

关 键 词：岩浆岩侵入 瓦斯赋存 防突 

分 类 号：TD712.2[矿业工程—矿井通风与安全]