基于“风险累积”效应的城市轨道交通车辆维修风险分析

摘要

Based on fault tree analysis (FTA) theory, the causes of metro vehicle safety failure are analyzed. The security "risk accumulation" effect is detected in the process of metro vehicle maintenance and the "risk spread" effect in the operation of vehicles after repair. So, countermeas-ures against contingent risk management and the security risk control are put forward to deal with the major vehicle maintenance crises.%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.