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结合贵州某煤矿的实际情况,分析了导致该矿井瓦斯爆炸事故的多项因素,并使用FTA法(事故树分析法)建立了瓦斯爆炸事故树模型。通过求解最小割集,找出导致矿井瓦斯爆炸事故的途径,根据所求解的最小径集,进行结构重要度分析,找出预防瓦斯爆炸事故的主要方法,最后对该矿进行安全分析和评价。
Combined with the actual situation of a coal mine in Guizhou, a number of factors that led to the gas explosion accident are analyzed. A tree model of gas explosion accident is established by FTA method (Fault Tree Analysis). By solving the minimal cut set, the ways leading to mine gas explosion accidents are found out. According to the minimum diameter set solved, the importance analysis of the structure is carried out to find out the main methods to prevent gas explosion accidents. Finally, the safety analysis and evaluation of the mine are carried out.