基于TOPSIS的高原山区铁路区间渡线设置决策研究  

Research on Setting of the Interval Crossover of A Plateau Mountain Railway Based on TOPSIS

作　　者：张彬 ZHANG Bin(State Key Laboratory of Rail Transit Engineering Informatization(FSDI),Xi'an 710043,China)

机构地区：[1]轨道交通工程信息化国家重点实验室(中铁一院),西安710043

出　　处：《铁道标准设计》2022年第4期16-20,共5页Railway Standard Design

基　　金：中铁第一勘察设计院集团有限公司科技研究计划课题(院科20-02)。

摘　　要：为判定高原山区铁路某段区间是否应设置渡线,为铁路后续运营提供便利化的条件。首先,根据高原山区铁路线路特点,结合国内外铁路设置区间渡线现状,阐述高原山区铁路设置区间渡线的作用和意义;其次,确立车站间距、行车密度、事故抢险救援时效性、综合维修便利性、工程投资和养护维修工作量6个指标作为评价指标,并使用TOPSIS方法对上述指标进行定量综合评价;最后,以某高原山区铁路3个代表性区间及1个参照区间为例,进行案例仿真并对结果进行分析。结果表明:长大站间距线路,以路基或长大分修隧道为主时,设置区间渡线会增加较大工程投资及运营维护成本,综合效益较低;区间以合修隧道为主情况下设置渡线的综合效益较高。In order to determine whether interval crossover should be set in Plateau mountain railway and provide convenient conditions for subsequent railway operation,the function and significance of setting interval crossover on Plateau mountain railway are discussed first according to the line characteristics of Plateau mountain railway based on current situation of setting interval crossover at home and abroad,and then,six scoring indexes,including station spacing,traffic density,timeliness of emergency rescue,convenience of comprehensive maintenance,project investment and maintenance workload are established.Finally,three representative sections and one reference section of Plateau mountain railway are selected for case simulation and their results are analyzed.It is concluded that when the long station spacing line is mainly composed of subgrade or long separate tunnels,the setting of interval crossover will increase project investment and operation and maintenance cost with low comprehensive benefit.However,the comprehensive benefit of setting crossover is higher when the section is mainly composed of combined tunnels.

关 键 词：高原山区铁路 区间渡线 综合评价 决策 TOPSIS 

分 类 号：U212.333[交通运输工程—道路与铁道工程] U211