基于安全评价方法对木城涧煤矿瓦斯爆炸研究

Study on gas explosion in Muchengjian coal mine based on safety assessment method

矿井瓦斯爆炸是煤矿灾害性事故之一,为减少发生事故的概率,对煤矿进行安全评价并提出预防措施是必要的。根据对木城涧煤矿的调查情况,采用危险源辨识法、危险因子评估法以及事故树方法对矿井瓦斯爆炸事故进行综合分析,得出:木城涧煤矿瓦斯爆炸危险度级别为芋级,危险程度为比较危险;最小割集156组,最小径集6组。根据综合评价结果,制定出木城涧煤矿瓦斯爆炸预防措施。

Mine gas explosion is one of the catastrophic accidents in coal mines.In order to reduce the probability of accidents,it is necessary to assess the safety of coal mines and put forward preventive measures.According to the investigation of Muchengjian Coal Mine,the hazard source identification method,risk factor evaluation method and fault tree analysis method are used to conduct a comprehensive analysis of mine gas explosion accidents.It is concluded that the risk level of gas explosion in Muchengjian Coal Mine is grade III,and the risk degree is relatively dangerous.And minimum cut set is 156,minimum path set is 6.According to the comprehensive evaluation results,the prevention measures of gas explosion in Muchengjian Coal Mine are formulated.