基于集对分析方法的山区高速铁路线路方案优选研究

    OPTIMAL RESEARCH OF HIGH SPEED RAILWAY ROUTE IN MOUNTAIN AREA BASED ON SET PAIR ANALYSIS

    • 摘要: 针对影响山区高速铁路方案评选的因素非常复杂,而且各个因素相互关联的问题,为了得到优化的最佳方案,本文根据当前国内外在铁路选线领域及多属性决策领域的研究现状,采用集对分析法进行山区高速铁路选线研究。首先以西安至成都高速铁路大巴山区段6条铁路方案为研究对象,通过对研究区工程地质条件资料的收集、野外实地调查、室内数据分析,提出适用研究区影响线路方案的6种评价因子。然后采用1~9标度法,得到研究区影响线路方案的评价因子判断矩阵,运用层次分析法对各评价因子权值进行了计算,得到各评价因子的权重值。最后,采用集对分析评价方法,对各个线路进行优劣评价,得到了选线优化设计的最佳方案,认为在拟选的6种方案中,DK1是最佳方案。

       

      Abstract: There are multiple factors affecting the optimal selection of the high speed railway route.The factors are interactive.To obtain the optimized route scheme,the set pair analysis method is used.From the perspective of geologic factors,the analysis and evaluation on geological factors affecting the rail lines are made.For choosing the best route line,the analytic hierarchy process(AHP)is used to determine the rate of the various influencing factors.The set pair analysis(SPA)is used in variable fuzzy sets calculation.In this paper,the principles and steps of the AHP and SPA are described and analyzed.Then,this paper takes the six schemes in Daba Mountains of the high-speed railway program,a segment of the Xi'an to Chengdu railway,for the research objects.The investigation includes the study data collection of the engineering geological conditions,field investigation,the indoor data analysis.The paper determines six evaluation factors which have the impact on the selection of the proposed lines.Through a nine-scale method,the matrix of the evaluation factors on the rail program is obtained.From AHP calculation,the rates of evaluation factors are obtained.The SPA is used for the pros and cons evaluation of each line and to select the best alignment of optimal design.It is concluded that among the suggested six lines,the DK1 is the best one.

       

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