轨道几何状态均匀性指数及其应用  

Track Geometry Equality Index and Its Application

作　　者：李海锋[1] 许玉德[1] 王建西[1] 

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海201804

出　　处：《同济大学学报（自然科学版）》2009年第4期495-499,共5页Journal of Tongji University:Natural Science

基　　金：国家自然科学基金资助项目(50878158);铁道部科技研究开发计划资助项目(2004G002-E)

摘　　要：为更好地评价轨道几何状态的均匀性,提出了反映单元区段内轨道几何不平顺标准偏差变化趋势的新的评价指标——轨道几何状态均匀性指数(track geometry equality index,TGEI).以津浦线轨道几何不平顺数据为例,利用轨道几何状态均匀性指数与其他轨道几何状态评价方法或指标对轨道几何状态的均匀性及维修前后轨道几何状态数据变化的敏感程度两个方面做了对比分析,验证了新方法的有效性,并以此为基础分析了新方法的特点及其适用范围.Track geometry equality index （TGEI）, a new evaluation index reflecting the standard deviation change trend of the track geometric irregularity in unit management division, is put forward to evaluate the equality of track geometric status. Based on the track geometric data from Jin- Pu railway line, the TGEI and other methods or indexes for track geometric status evaluation, an analysis is made of the track geometric equality and the sensitivity of track geometric data before and after track maintenance work, and the validity of TGEI is confirmed. Subsequently, the characteristics and application scope of TGEI are analyzed based on the above descriptions.

关 键 词：轨道结构 几何状态 均匀性指数 评价方法 养护维修 

分 类 号：U213.2[交通运输工程—道路与铁道工程] U216