Yongmei Group Co.

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.

1 岩浆岩侵入形式
2 岩浆岩条带侵入对煤层瓦斯赋存的影响
3 岩浆岩点块状侵入对瓦斯赋存的影响
4 岩浆岩侵入与煤层逸散通道的相互关系
5 岩浆岩侵入对煤层厚度影响
6 岩浆岩侵入煤体工业分析及钻屑量影响关系
6.1 岩浆岩侵入煤层与工业分析指标关系
6.2 岩浆岩侵入煤层与钻孔钻屑量关系
7 岩浆岩侵入工作面防突措施选取与对策
8 结论

李治理,王一彤,郄利敏.岩浆岩侵入煤层瓦斯赋存规律及防突对策研究[J].山东煤炭科技,2023,41(06):107-109+116.