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研究目的:在进行铁路线路最大坡度的选择时,涉及到很多因素,而且这些因素进行两两比较时,其重要程度有模糊性、相对性,给决策者进行决策带来一定的困难,需要考虑定量和定性方面的多种因素来做出综合评价。研究结论:本文研究项目推荐选择最大坡度为12‰,局部地段采用20‰。将宁杭线作为一个系统,基于模糊层次分析法,结合线路走向、沿线地形条件及地质特点等因素,分析采用不同最大坡度对工程投资、工程的安全可靠性、列车运营费用和动车组的适用性等方面的影响,确定使系统最优时的最大坡度取值为12‰,考虑环保和节约,局部地段可采用20‰。同时,也说明此方法在进行线路最大坡度选择时的有效性和可操作性,为类似的多因素问题的解决提供参考。
Research purposes: There are many factors involved in the selection of the maximum grade of railway lines, and when comparing these factors, the degree of importance is ambiguous and relative, which makes it difficult for decision-makers to make decisions and needs to be considered Quantitative and qualitative aspects of a variety of factors to make a comprehensive assessment. Research conclusions: In this paper, the maximum gradient of the project recommendation is 12 ‰, and 20 ‰ in some areas. Based on the fuzzy analytic hierarchy process (AHP), the Ninghang line is used to analyze the safety and reliability of project investment, engineering safety, train operation cost and the application of EMU based on the factors of the route, the terrain and geological features along the line. Sex and other aspects of the impact of the system to determine the optimal maximum slope value of 12 ‰, taking into account environmental protection and conservation, the local lot can be used 20 ‰. At the same time, it also shows the effectiveness and operability of this method in the selection of the maximum slope of the line, and provides reference for solving similar multi-factor problems.