Gas Accident Analysis of Coal Mine Based on FTA
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摘要: 给出了事故树分析的步骤,绘制出了煤矿瓦斯事故树图,运用事故树分析方法对瓦斯事故进行了逻辑分析;采用布尔代数法,找出了煤矿瓦斯爆炸事故发生的最小割集、最小径集;通过对最小割集（最小径集）的求解,确定了基本事件的结构重要度,从而了解了煤矿的危险程度和安全程度,掌握了导致瓦斯事故发生的各基本原因事件的组合关系及其重要程度;给出了防治瓦斯事故发生的措施Abstract: The paper gave steps of fault tree analysis, drew fault tree diagram of mine gas, and made logical analysis for gas accident with FTA method. It found out minimal cut sets and minimal path sets by theory of Boolean algebra law method. It determined importance degree of structure of basic events through solving minimal cut sets and minimal path sets, so as to know degrees of danger and safety of coal mine and combination relation of basic cause events of gas accident and their importance. It also gave prevention measures of gas accident.
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