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基于浅埋藏煤层采空区受地表裂隙诱导漏风的影响,从采空区煤自燃防治为出发点,以磁窑沟煤矿10_(-2)号煤层10202工作面为研究对象,通过采空区铺设束管观测系统,辅助测点的氧气浓度变化,分析了浅埋藏工作面采空区氧气浓度变化规律,得到了采空区自燃氧化区域的分布特征。通过采空区自燃氧化三带的实测分析,掌握了磁窑沟浅埋藏工作面自燃氧化区域分布及最低推进速度,有助于指导矿井的防灭火实践。
Based on the influence of surface fissure-induced air leakage in goaf of shallow burial coal seam, starting from the prevention and control of spontaneous combustion of coal in goaf, taking 10202 working face of 10_ (-2) seam in Ciyugou Coal Mine as the research object, Tube observing system and auxiliary measuring point, the variation law of oxygen concentration in shallow burying working face was analyzed, and the distribution characteristics of spontaneous combustion oxidation zone in goaf were obtained. Through the measurement and analysis of the spontaneous oxidation of oxide zone in goaf, the distribution and the minimum advancing velocity of spontaneous combustion oxidation zone in the shallow buried working face of the maglev ditch are grasped, which helps to guide mine fire prevention and extinguishing practice.