煤矿瓦斯燃烧事故案例统计与分析

he thesis makes an incomplete statistics on 52 mine gas combustion accidents occurred between 1984 and 2010, and analyses the statistical law of gas source, ignition source, easy-happening location and so on. Then the study finds that gas source is related to the ventilation management, gas emission, objective circumstance condition in mine, etc. Shooting, electric fault, impact-friction spark, peccancy, coal spontaneous combustion are the formation cause of ignition source. The reasons for frequent gas combustion include: many gas sources, the large range concentration and the short induction periods of gas combustion, as well as the high coupling efficiency between gas combustion source and ignition source. To some extent the research results have important guidance to prevention and control of mine gas combustion.