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提出了岩溶区高速铁路线路优选的模糊层次分析法.在对影响岩溶区铁路线路方案的各因素进行分析和调查基础上,选取4个一级指标、13个二级指标构建综合评价指标体系;通过层次分析法建立层次关系,构造阶层结构,采用模糊理论建立判断矩阵,确定权重向量;通过专家调查和室内外试验等方式确定各因素得分,采用逻辑运算确定相对优属度矩阵,建立模糊综合评判模型,评判备选线路方案的优劣.利用该模型对贵广高速铁路雄村—贺州段3条备选线路方案进行比选,得出备选方案的相对优属度分别为0.131,0.889和0.581,从而确定第二方案最优,为实际工程建设提供了决策依据.
The fuzzy AHP method of high speed railway line in karst region is put forward.On the basis of analyzing and investigating the various factors affecting the railway line plan in karst region, four first grade indexes and 13 second grade indexes are selected to construct the comprehensive evaluation index system. Through the hierarchy analysis method to establish the hierarchical relationship, construct the hierarchical structure, using fuzzy theory to establish the judgment matrix and determine the weight vector; through expert investigation and indoor and outdoor experiments to determine the score of each factor, using logical operation to determine the relative priority degree matrix, the establishment of fuzzy comprehensive evaluation Model to judge the pros and cons of alternative route plan.Using this model to compare the alternatives of three alternative routes in Xiongcun-Hezhou section of Guiguang-Suizhou Railway, the relative superiority degree of alternative plan is 0.131,0.889 and 0.581, so as to determine the second best solution for the actual construction of a decision-making basis.