区段强干扰下的列车运行调整研究

A Train Rescheduling Research under Section Strong Interference

铁路日常运输中不可避免地会受到各类干扰因素影响,当发生强干扰时可能会造成线路不满足行车条件而中断。考虑双线铁路某方向线路受强干扰影响无法行车,上下行列车共用该区段一条线路的情景,以事件-活动网络抽象列车在区间内的运行及站内停站,考虑各类运输组织条件,构建混合整数规划模型进行列车运行调整。根据模型特点采用CPLEX进行求解,以郑西高速铁路实际列车运行数据为例进行验证,给出8种不同场景下的运行调整方案。结果表明,该模型能够在短时间内得到高质量的解,是解决强干扰条件下的列车运行调整问题的一种有效方法。

Railway daily transportation will inevitably be affected by various interference factors.When the strong interference occurs,it may cause disruption of the railway line due to unsatisfactory driving conditions.Considering a situation that a certain direction line of double-track railway is unable to operate due to a strong interference,and the upward direction and downward direction trains share one line in the section,the operation and stop of trains in the section are abstracted by the event-activity network,and the various transport organization conditions are considered,a mixed integer programming model is constructed to adjust the operation of trains.According to the characteristics of the model,CPLEX is used to solve the problem.Taking the actual train operation data of Zhengzhou-Xi’an High Speed Railway as an example,the operation adjustment schemes under eight different scenarios are given.The results show that the model can obtain high quality solutions in a short time,and it gives an effective method to solve the problem of train operation adjustment under strong interference conditions.