铁道标准设计2017，Vol.61Issue(12)：10-13,4.DOI:10.13238/j.issn.1004-2954.2017.12.003
滑动标准差在轨道几何区段状态评价中的应用
Application of Slip Standard Deviation in the Evaluation of Track Geometry
摘要
Abstract
The track quality index TQI is the sum of the standard deviation of left height,right height,left track alignment,right track alignment,gauge,horizontal level and twist.The standard deviation of each item directly reflects the input energy of the geometric irregularity,showing the degree of dispersion of geometric irregularity.The bigger the input,the poorer the track state,and the larger the excitation energy.In view of the shortcomings of the current standard deviation calculation method,which can not fully reflect the worst state of the track quality,and the dispersion of the evaluation results,a method for evaluating the state of track using the slip standard deviation calculation method is put forward.Research suggests that the suitable calculation length is 200 m and the moving step length is 20 m,which are applied for trial with test data of 9 ～ 10 month from Beijing ～ Shanghai railway line.The results show that the slip standard deviation can not only find the worst section of track quality state,but also find more sections exceeding standard management limit and it is also better than the current standard deviation calculation in identifying the start and stop position (length) and in consisting with the evaluation results.关键词
轨道几何/状态评价/滑动标准差/移动步长/评判结果Key words
Track geometry/State evaluation/Slip standard deviation/Moving step length/Evaluation result分类
交通工程引用本文复制引用
杨飞,赵钢,尤明熙,刘维桢..滑动标准差在轨道几何区段状态评价中的应用[J].铁道标准设计,2017,61(12):10-13,4.基金项目
国家重点基础研究发展计划(973)课题(2013CB036205) （973）
中国铁路总公司科技研究开发计划项目(2015T003-B) （2015T003-B）
中国铁道科学研究院行业服务技术创新项目(2015YJ096) （2015YJ096）
