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煤矿瓦斯爆炸事故严重威胁井下工作人员的生命安全。大部分瓦斯爆炸发生在采煤工作面,为了减少瓦斯爆炸事故的发生,必须对采煤工作面瓦斯爆炸事故进行全面科学的分析。本文采用事故树的分析方法,基于采煤工作面瓦斯爆炸原理建立了瓦斯爆炸事故树模型,根据顶上事件发生概率和基元事件危险重要度,分析了引起采煤面瓦斯爆炸的主要因素,并提出相应的风险防范措施。
Coal mine gas explosion serious threat to the lives of underground staff. Most of the gas explosion occurred in the coal mining face, in order to reduce the gas explosion accident, we must conduct a comprehensive and scientific analysis of gas explosion accidents in the coal face. In this paper, a method of accident tree analysis was used to establish a gas explosion accident tree model based on the principle of gas explosion in coalface. According to the occurrence probability of top event and the critical importance of elementary event, the main factors that caused gas explosion in coalface were analyzed. And put forward the corresponding risk prevention measures.