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爆破作业在各类工程项目中的应用越来越广泛,尽管爆破技术经历了较长时间的发展,但在爆破作业中的各类事故仍常有发生,其中拒爆事故不但令爆破技术人员非常棘手,也给处理拒爆事故的作业人员带来人身安全方面的威胁。应用安全系统工程的主要方法——事故树分析(FTA),对爆破工程中常用的电爆网络进行了分析。通过定性分析,求出了树的最小割集、最小径集及基本事件的结构重要度系数;通过拒爆事故影响因素的分析,计算出了拒爆事故发生的概率,并相应提出了降低拒爆事故发生概率的措施。
Blasting operations in various types of engineering projects more and more widely used, although the blasting technology has experienced a long time, but in blasting operations are still a variety of accidents have occurred, which refused to blast explosion not only blasting technical staff is very Thorny, but also to deal with the crew refused to knock accidents caused by personal safety threats. The main method of safety system engineering - Fault Tree Analysis (FTA) is applied to analyze the electric burst network commonly used in blasting engineering. Through the qualitative analysis, the minimum cut set, the minimum path set and the structure importance factor of the basic events were calculated. By analyzing the influencing factors of rejecting the explosion accident, the probability of rejecting the explosion accident was calculated, Explosion accident probability of the measures.