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1、山西沁新能源集团股份有限公司新源煤矿基于事故树的斜井轨道运输伤人事故分析斜井运输系统是矿山整个生产过程中最重要的辅助环节之一，运输系统的安全状况,关系到人员生命和物质财产的安全。根据集团相关文件精神要求，我矿于2014年5月份利用事故树分析法对井下运输伤人事故进行了分析,绘制了事故树,计算得出其最小割集与最小径集,判明了影响轨道运输事故的关键因素,并根据分析结果,提出了预防轨道运输事故发生的对策措施,有利于相关管理部门做出科学的决策。一.轨道运输事故分析1.轨道运输事故树构建根据集团范围内发生的
2、轨道运输事故,对导致轨道运输事故的原因调查分析,找出导致事故发生的危险事件,根据其发生的逻辑关系画出如附图所示的事故树图。2.事故树分析2.1求最小割集最小割集是所分析的顶上事故发生的一种可能的途径,它表明了系统的危险性。最小割集的数目越多,所分析系统的危险性就越大.根据事故树的逻辑表达式对其进行化简求其最小割集。T=M1*M2*M3=(M4+M5+M5+M6+X22)*(X23+X24+X25+X26)*(M10+M11+X21)=(X4+X5+X6+X7+X8+X9+X10+X11+X12+
3、X13+X14+X15+X16+X17+X22+M7+M8)*(X23+X24+X25+X26)*(M10+M11+X27)=(X4+X5+X6+X7+X8+X9+X10+X11+X12+X13+X14+X15+X16+X17+X22+X18+X19+X20+X21)*(X23+X24+X25+X26)*(X28+X29+X30+X31+X32+X33)最小割集为:1.(X22*X23*X27),2.(X22*X23*X28*X29*X30),3.(X22*X23*X31*X32*X33),4.
4、(X22*X24*X27),5.(X22*X24*X28*X29*X30),6.(X22*X24*X31*X32*X33),7.(X22*X25*X27),8.(X22*X25*X28*X29*X30),9.(X22*X25*X31*X32*X33),10.(X22*X26*X27),11.(X22*X26*X28*X29*X30)12.(X22*X26*X31*X32*X33),13.(X1*X23*X27),14.(X1*X23*X28*X29*X30),15.(X1*X23*X31*X32
5、*X33),46.(X1*X24*X27),17.(X1*X24*X28*X29*X30),18.(X1*X24*X31*X32*X33),19.(X1*X25*X27),20.(X1*X25*X28*X29*X30),21.(X1*X25*X31*X32*X33),22.(X1*X26*X27),23.(X1*X26*X28*X29*X30),24.(X1*X26*X31*X32*X33),25.(X2*X23*X27),26.(X2*X23*X28*X29*X30),27.(X2*X23*X
6、31*X32*X33),28.(X2*X24*X27),29.(X2*X24*X28*X29*X30),30.(X2*X24*X31*X32*X33),31.(X2*X25*X27)，32.(X2*X25*X28*X29*X30),33.(X2*X25*X31*X32*X33),34.(X2*X26*X27),35.*X26*X28*X29*X30),36.(X2*X26*X31*X32*X33),37.(X3*X23*X27),38.(X3*X23*X28*X29*X30),39.(X3*X2
7、3*X31*X32*X33),40.(X3*X24*X27),41.(X3*X24*X28*X29*X30),42.X3*X24*X31*X32*X33),43.(X3*X25*X27),44.(X3*X25*X28*X29*X30),45.(X3*X25*X31*X32*X33),46.(X3*X26*X27),47.(X3*X26*X28*X29*X30),48.(X3*X26*X31*X32*X33),49.(X4*X23*X27),50.(X4*X23*X28*X29*X30),51.(
8、X4*X23*X31*X32*X33),52.(X4*X24*X27),53.(X4*X24*X28*X29*X30),54.(X4*X24*X31*X32*X33),55.(X4*X25*X27),56.(X4*X25*X28*X29*X30),57.(X4*X25*X31*X32*X33),58.(X4*X26*X27),59.(X4*X26*X28*X29*X30),60.(X4*X26*X31*X32*X33),61.(X5*X23*X27),62.(X5*X23*X28*X29*X30
