高速铁路车站站改施工前后不同阶段通过能力计算及削减分析

Capacity Calculation and Reduction Analysis of Different Stages Before and After the Reconstruction of High-speed Railway Stations

高铁车站通过能力计算引入多品种流网络思想,针对分阶段站改施工造成部分咽喉、到发线不可用情况,进行高铁站通过能力计算及消减分析,运用层次分析法分析咽喉及到发线重要程度。将高铁车站的站场图抽象为网络图,按到发线占用及作业时间不同进行分类,基于图解法计算车站通过能力基础上,构建整数规划模型,并运用Ford-Fulkerson算法进行最大流预推,得出车站最大通过能力。以深圳北站站改为例,计算一、二阶段站改施工的通过能力,在不同咽喉、到发线封锁情况下,对通过能力进行消减分析,再通过层次分析法,对不同咽喉及到发线影响通过能力的重要程度进行分析并得出结论。

Through the capacity calculation of high-speed railway stations,the idea of multi-variety flow network is introduced.In view of the situation that some throats and arrival-departure lines are unavailable due to staged station reconstruction,the high-speed railway station capacity calculation and reduction analysis are carried out.Ahp is used to analyze the importance of throat and arrival and departure lines.The station map of the high-speed rail station is abstracted into a network map,classified according to the occupancy of the arrival and departure lines and the operating time,based on the calculation of station passing capacity by graphic method,an integer programming model is built,and the maximum passing capacity of the station is obtained by using the Ford-Fulkerson algorithm for maximum flow prediction.Taking the reconstruction of Shenzhen North Railway Station as an example,calculate the traffic capacity of the first and second phases of the station reconstruction.Under the circumstances of different throats and arrival-departure line blockades,carry out a reduction analysis on the traffic capacity,and then the importance of different choke points and arrival and departure lines affecting the passage capacity is analyzed and a conclusion is drawn through the analytic hierarchy process.