高速铁路长大下坡道列车运行方式研究

Study on Train Operation Modes on Long Heavy Down Grade of High-speed Railway

动车组列车在高速铁路长大下坡道运行时存在闭塞分区长度及应答器容量不足导致限速、追踪间隔较大等问题。为减轻高速铁路长大下坡道对动车组运行速度及追踪间隔的影响,在阐述闭塞分区长度、应答器容量、列车追踪间隔等长大下坡道动车组运行相关问题的基础上,对车载监控制动距离的计算方法和安全冗余情况进行分析,并从不限速及限速的角度研究现有条件下动车组在长大下坡道运行的方式,研究结论为高速铁路长大下坡道动车组列车运行提供借鉴。

When EMU trains run on a long heavy down grade, it＇s very likely to occur problems, such as speed limit and longer headway due to inadequate length of interlocking section or insufficient capacity of the balise. In order to release the influence of the long heavy down grade on EMU operation speed and headway, based on introductions about the length of interlocking section, capacity of balise and train headway, this paper analyzes the calculation methods and safety redundancy status of the braking distance controlled by onboard surveillance equipment. The current modes of high-speed EMU running on the long heavy down grade with normal speed or limited speed are also studied. The study results provide reference for EMU train operation on the long heavy down grade of high-speed railway.