基于FTA方法的煤与瓦斯突出危险性评价研究

煤与瓦斯突出事故已被广泛研究,基于FTA方法的突出专项危险评价极少被涉及。依据煤与瓦斯突出综合假说和事故因果理论,本文提出了煤与瓦斯突出概念模型;基于FTA方法构建突出事故树基本模型。以大兴煤矿为工程实例,结合地质构造因素与突出事故树基本模型,建立了大兴矿突出事故树模型,通过最小割集、最小径集与结构重要度的计算,来评价该矿突出路径、危害程度及防治措施,完成煤与瓦斯突出危险专项评价。

Application of FTA method on hazard assessment for coal and gas outburst

Although there has been a great deal of attention paid to accidents of coal and gas outburst,little attention has been paid to its special hazard assessment based on FTA method.Conceptual model of coal and gas outburst is presented according to comprehensive hypothesis of coal and gas outburst and the accidents’ causality theory,and based on FTA method,basic fault tree model of outbursts is constructed.Taking Daxing Mine for engineering example,its fault tree model of outburst is established by combining geological-tectonic factors with the basic fault tree model of outbursts.After calculating the minimum cut set,the minimum path set and the structural importance degree,the mine’s outburst path,endangerment degree,measures for prevention are evaluated to complete the special hazard assessment of coal and gas outburst.