【摘要】 京沪高铁作为我国高速铁路的标杆，开通以来已经成为行车密度最大的高铁线路之一，高峰时段大型车站的通过能力已接近饱和，成为制约线路或区段通过能力的主要瓶颈。为提升京沪高铁通过能力，以京沪高铁南京南站为研究对象，通过对南京南站京沪场不同通过类型列车到达间隔的计算分析，提出预接车分区控制思想，基于系统工程思想将接近区段与车站视为整体，通过在接近区段设置预接车信号机以压缩列车到达追踪间隔；通过改变预接车分区长度和划分关键道岔节点，建立预接车分区优化模型，比较不同预接车分区长度下的列车追踪间隔和分区占用时间关系，确定瓶颈分区的所在位置；通过设计进路占用时间推算算法对进路集合中不同车次序列的组合对比它们预接车前后的接车占用总时间。研究结果表明：以一接近、二接近和三接近分区进行预接车作业都会不同程度地降低到达追踪间隔，其中一接近预接车对到达追踪间隔的压缩效果最为显著，通过能力瓶颈随预接车分区距离的增加逐渐从进站信号分区向咽喉分区转移，车次序列进行预接车作业的接车占用总时间对比预接车前有较大的提升，相同时间周期内车站的通过能力得到了明显提高。研究结果对拓展车站分区理论模型及改进高铁线路大型车站通过能力具有指导意义。更多还原

【Abstract】 As a benchmark of high-speed railways in China, the Beijing-Shanghai high-speed railway has become one of the busiest high-speed railway lines since its opening. During peak hours, the carrying capacity of the large station is approaching saturation, becoming the main bottleneck restricting the capacity of lines or sections. In order to enhance the carrying capacity of the Beijing-Shanghai high-speed railway, taking Nanjing South Station of the Beijing-Shanghai high-speed railway as the research object, this study calculates and analyzes the arrival intervals of different types of trains passing through the Beijing-Shanghai yard of Nanjing South Station. Based on this, the concept of the division of pre-arrival control was proposed, which considered the approaching section and the station as a whole based on the system engineering idea. By setting pre-arrival signals in the approaching section, the train arrival tracking interval was compressed. By changing the length of the division of pre-arrival and dividing key turnout nodes, an optimization model for the division of pre-arrival was established. The relationship between train tracking interval and division occupancy time under different lengths of the pre-arrival division was compared to determine the location of the bottleneck division. By designing an algorithm for calculating the occupancy time of routes, the total occupancy time of different train sequences in the route set before and after pre-arrival was compared. The research results show that using different approaching division for pre-arrival operations will reduce the arrival tracking interval to varying degrees. Among them, the compression effect of the arrival tracking interval by the pre-arrival control of the first approaching division is the most significant. The carrying capacity bottleneck gradually shifts from the entrance signal division to the throat as the distance of the pre-arrival division increases. The total time occupied by the train sequence for pre-arrival operations is more improved than before, and the carrying capacity of the station is significantly improved within the same time period. The research results have guiding significance for expanding the theoretical model of station division and improving the capacity of large stations on high-speed railway lines.更多还原