In the thesis , the railway traffic accidents of the fire disaster , conflict , separation from the track , smooth movement , slide , mistake operation of the train meeting and departing , the movement of the train will be analyzed systematically , applying the engineering theory of human - machine - environment and the model of the accident tree , the changing tree , the tree of success - lose 运用人?机?环境工程学理论和事故树、事变树、成败树等多种模型，采用宏观分析与微观分析相结合的办法，对列车火灾、冲突、脱轨、冒进、溜逸、错误办理接发列车以及调车等惯性事故进行系统分析。
The ultimate aim of method dissertating is put into use basing on experience in engineering , tunnel engineering is one of complicated geological condition among engineering , so it is essential to use system safety engineering on controlling safety of tunnel . in application of tunnel safety engineering . we process safety analysis using fta , process system integrated appraise using fuzzy integrated appraise . process safety decision - making using ahp , and obtain favorable effect 论文的实证研究，选取的是隧洞工程。因为隧洞工程是地质条件最复杂的工程之一，对隧洞的安全控制采用安全系统工程是非常必要的。在隧洞安全系统工程中，采用事故树分析法进行安全分析，采用模糊综合评估法进行系统综合评价，采用层次分析法进行安全决策，取得了良好的效果。
The underlying dangerous factors in the explosion elimination processing of lpg ( liquified petroleum gas ) tanks in a chemical plant in xiangfan city , hubei province , were systematically analyzed from the top tree event to the bottom tree event , and from the results to the causes by a fault tree taking a fire or explosion accident for the top 摘要采用事故树分析法，建立了以发生火灾或爆炸事故为顶上事件的事故树，从分析事故发生因果关系中的顶上事件开始，直到基本事件，由果到因、自上而下地分析了某化工厂液化石油气储罐销爆过程中的危险因素。
The principle and method of fault tree analysis and its applications in fault analysis are mainly discussed by taking " non - dilapidation of building demolition blasting " as an example . and the " non - dilapidation of building demolition blasting " fault tree and its hierarchy structure mode are made 在以上分析的基础上，以近年来发生频率较高的“楼房拆除爆破未倒或未全倒”为实例，重点探讨了事故树分析的原理和方法及其在事故分析中的应用，建立了楼房拆除爆破未倒或未全倒的事故树及其层次结构模型。
Four kinds of accidents including the falling from high place , object beating , machine and crane injury , electric shock were the major research objects in this paper . people always call this four kind of accidents " the four big accidents " . the characteristics , modes , causes and protection measures of each kind were given in the paper 文章详细分析了高处坠落、物体打击、机械和起重伤害、触电事故的特点、类型、发生原因和防范措施，并用事故树分析法分析了每种类型的典型事故，做出了定性分析。
