基于FTA-Petri网的地铁火灾事故安全性研究

鉴于城市轨道交通安全的复杂性及重要性,应用FTA-Petri综合分析方法对城市轨道交通系统安全性进行分析并构建轨道交通系统火灾事故安全性模型。该模型具有FTA与Petri网方法的优点。在利用传统的FTA方法深入分析火灾事故原因的基础上,选择典型的火灾事故成因,利用Petri网方法动态模拟火灾事故发生的过程;借鉴已有的概率计算方法对所建立的火灾Petri网模型进行定量求解分析;最后,针对分析结果提出可行性方案。提出将FTA-Petri综合分析方法应用到城市轨道交通安全领域,在地铁火灾安全性定量分析方面作出了探索性的研究。

Study on Safety of Fire Accident in Urban Mass Transit System Based on m-Petri Net

Based on the complexity and importance of urban mass transit system safety,a synthetic method,FTA-Petri,for analyzing safety of urban mass transit system was presented and used in fire hazard security modeling,which possessed the strengths of FTA(Failure Tree Analysis)and Petri.First,FTA was used to find out the main causes for typical fire accidents,and Petri net was used to dynamically simulate the fire evolution process,then quantitative calculations were made by use of probability method,at last possible solutions were presented according to the analysis results.The application of FTA-Petri in the safety analysis of urban mass transit system is just an exploratory study on the analysis of metro fire safety.