京张铁路清河站到发线规模优化及图解验证

Configuration Optimization and Simulation Verification of Arrival-departure Track Scale in Qinghe Station of Beijing-Zhangjiakou Railway

为优化车站到发线规模、减少中心城区新建客站的工程拆迁数量,使用图解法对京张高铁清河站的到发线及咽喉区通过能力进行仿真分析和规模核定。首先,基于预测列车数量及其作业类型,采用利用率法核算车站到发线的基本规模;其次,结合车站各项技术作业标准,使用图解法对到发线和咽喉区通过能力进行分析,给出各条车站股道及道岔的分时段利用情况;最后,根据京张铁路清河站设计规模对其作业进行图解分析,验证其在减少一条到发线时仍可满足列车作业需求,并指出车站行车作业的薄弱环节。研究结果实现了工程投资的优化,并为运营层面上车站技术作业方案及列车开行方案的制定提供有益参考。

In order to optimize the scale of the station’s arrival-departure line number and reduce the number of engineering construction demolition of the newly-built passenger station in urban area,the graphical method was used to simulate and analyze the throughput capacity of the arrival-departure line and the throat area of the Beijing-Zhangjiakou High-Speed Railway Qinghe station.Firstly,based on the predicted number of trains and their operation types,the utilization rate is used to calculate the basic number of the station-to-departure line.Secondly,combined with various technical operation standards of the station,the passing capacity of the arrival-departure line and the throat area is analyzed by using the graphical method,and the utilization of each station track and switch point is given by time period.Finally,according to the design scale of Qinghe Station of Beijing-Zhangjiakou Railway,the graphic analysis of its operation is carried out to verify that it can still meet the train operation requirements when reducing one arrival departure track,and the vulnerable spot of the station operation is pointed out.The research method reduced the scale of engineering investment,and provide a useful reference for the formulation of the station technical operation plan and the train running plan at the operational level.