背斜区域窄煤柱沿空掘巷煤层自燃机理及防治

The Spontaneous Combustion Mechanism and Prevention of Coal Seam in Gob-Side Roadway of the Narrow Coal Pillar along the Anticline Area

为了防范煤层自燃事故,针对背斜轴部区域内厚煤层窄煤柱沿空掘巷引起的煤层自燃事故进行了分析,总结了发生自燃事故的主要因素,得出结论:煤层厚度、煤体结构和煤层所处的构造形态以及掘进方式都对煤层自燃产生影响。并提出了粘土浆直接灭火、采空区注浆填实、帷幕注浆和全断面喷浆四位一体的灭火方案,有效防范煤层自燃事故。

In order to prevent accidents of coal seam spontaneous combustion,the spontaneous combustion accident was analyzed,which happened in gob-side entry driving in the area of narrow coal pillar anticline axis of roadway,and the main factors leading to the spontaneous combustion accident were summarized,which arrived at the conclusion that the coal seam thickness,coal structure and coal seam of structure form and the way of tunneling all have an influence on the coal seam spontaneous combustion.The fire-extinguishing scheme of direct fire extinguishing,grouting filling in goaf,curtain grouting and full-section shotcrete,is put forward to prevent the spontaneous combustion accident of coal seam.