基于UIC406的移动闭塞模式下越江段列车运行

从信号系统控制列车的角度研究如何减小列车在越江区间的最小追踪间隔问题，以提高长大越江区间线路通过能力。首先，介绍移动闭塞模式下列车通过越江区间的运行方式，信号系统需保证线路正常运营，越江段区间风井之间仅有1列车运行；其次，结合列车运行特点，参考UIC406能力分析方法推算出移动闭塞模式下列车在越江区间内最小追踪间隔的计算模型，得出最小追踪间隔与列车在越江区间中运行速度之间的函数关系；然后，通过对所得的函数进行求导，推算出列车在区间中的最高运行速度、接近速度的取值及对最小追踪间隔的影响，并求得函数的极小值；最后，通过仿真软件验证计算模型的合理性并提出信号控制列车的优化方案。

Study on Trains in Moving Block System Crossing the River Based on UIC406

In order to ensure the ventilation in the crossing river tunnel under normal and accident condition, the signal system only allows a train running between the two shafts. The capacity was limited when trains crossing long river tunnel. To improve the railway capacity, this paper analyses that how to decrease the minimum headways between two trains crossing river tunnel from the signal system perspective. First, the model of headway which trains in the moving block signal system crossing the river was built based on the calculation method of UIC406 capacity, as well as the theoretical calculation method was pushed down. Secondly, according to the calculation model, the effects of the train speed are studied in the thesis. At the end of the paper, the reasonability of the model was validated with the simulation software and effective solutions to improve capacity from the signal system perspective are proposed.