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依据故障树分析法(FTA)原理,对城市轨道交通车辆维修的安全故障因素进行了分析。城市轨道交通车辆维修的工艺过程存在着安全“风险累积”效应;维修后车辆的营运过程存在着“风险扩散”效应。在分析目前城市轨道交通车辆维修面临挑战的基础上,提出了风险应急和风险控制的相应对策。
According to the principle of fault tree analysis (FTA), the safety fault factors of urban rail transit vehicle maintenance are analyzed. There is a safety “risk accumulation” effect in the process of urban rail transit vehicle maintenance; there is a “risk spread” effect after the vehicle is repaired. On the basis of analyzing the current challenges of urban rail transit vehicle maintenance, the corresponding countermeasures of risk emergency and risk control are put forward.