摘要
同煤集团马道头煤矿8101工作面为II类自燃煤层,后方采空区内易产生浮煤自然发火的现象,为确保工作面的安全回采,采用实地监测、理论分析计算等方法。研究表明,距离8101工作面18~110 m为自然发火危险区域,工作面的推进速度应当大于3.07 m/d,研究成果对于采空区注氮、黄泥灌浆、上下隅角钻孔注胶等自然发火防治措施的指导具有重要意义,为工作面的安全高效回采提供重要保障。
8101 working face of the Madautou Mine of Datong Mining Group is a Class II self-combustion seam, which is prone to natural ignition of floating coal in the goaf behind. The research results are of great significance for the guidance of natural fire prevention and control measures such as nitrogen injection, yellow mud grouting, and drilling glue injection at the upper and lower corners of the working face, and provided an important guarantee for the safe and efficient recovery of the working face.
作者
王振
Wang Zhen(Madautou Coal Industry,Datong Mining Group,Datong 037000,China)
出处
《煤炭与化工》
CAS
2020年第8期98-100,104,共4页
Coal and Chemical Industry
关键词
采空区
自然发火
理论计算
goaf
natural ignition
theoretical calculation
