高速铁路无砟轨道精调作业综合评价方法研究

Comprehensive Evaluation on Ballastless Track Fine Adjustment of High-Speed Railway

轨道精调是实现列车运行高品质的一项重要工作,现今对轨道精调质量的评价主要采用轨道质量指数(TQI),对精调作业经济投入、经济投入与TQI改善量关系的研究不多。为实现精调高效率、投入低成本的目标,引入精调作业总投入、精调作业投入产出比等经济指标,评价精调综合效果,引入波士顿矩阵图分析法对精调作业进行总体评价,在杭长高速铁路浙江段精调作业应用实践中表明,杭长高速铁路浙江段的精调作业效果良好,69.8%的区段投入相应的费用都能取得相应的TQI改善量,有17.8%的区段甚至投入较少的费用能取得较大的TQI改善量,而只有12.4%的区段投入较高的费用却取得较低的TQI改善量。

Track fine adjustment is an important work for high-quality train operation. At present, track quality index （TQI） is mainly used for evaluation of track quality, while there are seldom researches on economic invest merit of rail fine adjustment and the relationship between economic investment and TQI improvement. To achieve the goals of high efficiency and low cost of fine adjustment, economic indicators such as total investment and in put-output ratio of fine adjustment are introduced for comprehensive effect evaluation, and Boston matrix dia- gram is applied for overall evaluation. The operation practice in the section of Zhejiang of Hang-Chang High- speed Railway shows that the performance of fine adjustment in Hang-Chang High-speed Railway is favorable; 69.8% of the section investment can obtain corresponding TQI improvement and 17.8% of the section can cost less while obtaining larger TQI improvement; only 12.4% of the section get relatively low TQI improvement with high cost.