基于模糊事故树的煤矿瓦斯爆炸事故危险源分析

文章根据煤矿瓦斯爆炸事故发生机理,建立了煤矿瓦斯爆炸事故树,并分析得出瓦斯爆炸事故链,进而采用模糊事故树对事故链上各种危险源的不确定性和在事故产生过程中的重要度不一性进行分析,在分析模糊重要度计算方法上,采用中值法来获取基本事件的重要程度。最后,通过实例分析检验了模糊事故树分析对于煤矿瓦斯爆炸事故风险预控的可行性和科学性,从而为煤矿瓦斯爆炸事故及时准确预警提供了新思路。

Study on the Hazards of Coal-Mine Gas Explosion Accidents Based on the Fuzzy Fault Tree

Coal-mine gas explosion accidents are of the most serious losses in all kinds of coal mine accidents, so the dangerous source of the gas explosion accidents were analyzed with the fault tree in order to build the accident chains based on the mechanism of gas explosion accidents in this study. The uncertainty and the different importance of dangerous source in the process of gas explosion accident were studied by using the fuzzy fault tree, and the importance degree of base case was obtained by using the median method when analyzing the calculation methods of fuzzy importance degree. Finally, an actual example verified the feasibility and scientificallness of risk pre-control of coal-mine gas explosion accidents based on the fuzzy fault tree, and then a new idea for the timely and accurate coal-mine gas explosion accidents early warning was put forward.