摘要
针对深部矿井不规则工作面采空区遗煤自燃问题,以21914工作面为例,结合其地质条件与采空区复杂环境,研究了不规则工作面防灭火关键技术。通过分析煤层自燃倾向性、采空区遗煤分布及工作面形态变化特点,构建了综合防灭火体系,有效降低了自然发火风险,为类似条件下的工作面安全开采提供了借鉴。
In response to the problem of spontaneous combustion of residual coal in goaf of irregular working faces in deep mines,taking No.21914 working face as an example,combined with its geological conditions and complex environment of goaf,key technologies for fire prevention and extinguishing in irregular working faces were studied.By analyzing the tendency of coal seam spontaneous combustion,the distribution of residual coal in goaf,and the characteristics of changes in working face morphology,a comprehensive fire prevention and extinguishing system was constructed,effectively reducing the risk of spontaneous combustion and providing reference for safe mining of working faces under similar conditions.
作者
于洋
Yu Yang(Xuzhou Mining Business Group Co.,Ltd.,Xuzhou 221018,China)
出处
《煤炭科技》
2025年第5期142-145,共4页
Coal Science & Technology Magazine
关键词
不规则工作面
煤层自燃
防灭火
监测预警
irregular working face
spontaneous combustion of coal seam
fire prevention and extinguishing
monitoring and early warning
