日本客货共线铁路动车组与货物列车区间交会运输组织研究
Research on Transportation Organization for Electric Multiple Unit and Freight Train Crossing in Mixed-Traffic Railway Section in Japan
深入分析日本青函客货共线区间的运输组织与安全保障机制,探讨其对我国时速200 km客货共线铁路运输组织优化的借鉴作用。通过案例分析、技术参数对比与调度策略解析,系统研究青函区间三线轨道结构、动态速度控制(隧道内客货交会时新干线列车可提速至160 km/h)、智能调度系统(SAINT防误入系统)及“时间段区分方案”(高峰时段客货分离运行)等关键技术。结果表明:青函客货共线区间通过动货交会、时空协同、多层级防灾体系(限界障碍物报警、R600检测车)及客货分离调度,平衡了效率与安全,其新干线列车与货物列车相对交会速度达270 km/h时仍满足安全标准。研究可为我国长大隧道工况下客货共线铁路的运输组织、智能调度、动态速度控制及安全标准制定提供技术参考,助力铁路运输效率与安全协同提升。
This paper analyzed the transportation organization and safety assurance mechanisms of the Seikan mixed-traffic section in Japan and explored its reference value for the optimization of transportation organization of the 200 km/h mixed-traffic railway in China. Through case analysis, technical parameter comparison, and dispatching strategy analysis, the key technologies including the three-track structure, dynamic speed control (Shinkansen trains can be accelerated to 160 km/h during the crossing of passenger and freight trains in the tunnel), intelligent dispatching system (SAINT misrouting prevention system), and “time-segmented separation scheme” (passenger and freight separation operation during peak hours) were systematically investigated. The results show that the Seikan mixed-traffic section balances efficiency and safety through electric multiple unit and freight train crossing, spatiotemporal coordination, multi-level disaster prevention system (clearance obstacle alarm, R600 inspection vehicle), and passenger and freight separation dispatching, and safety standards are still met when the relative crossing speed of Shinkansen trains and freight trains reaches 270 km/h. The research can provide a technical reference for the transportation organization, intelligent dispatching, dynamic speed control, and safety standard formulation of mixed-traffic railways under long tunnel conditions in China, facilitating the coordinated enhancement of railway transportation efficiency and safety.
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