铁道标准设计2018，Vol.62Issue(7)：46-51,6.DOI:10.13238/j.issn.1004-2954.2018.07
高速铁路动检车检测数据里程误差评估与修正
Mileage Error Estimation and Correction of Track Geometry Data from Track Inspection Car on High Speed Railway
摘要
Abstract
Reducing mileage errors of data from the track inspection car can basically guarantee the accurate assessment and prediction of track geometry.Considering the inefficiencies of present researches on reducing mileages errors,a quantitative model for estimating differences between measurement mileages and actual mileages of track geometry data is established based on waveform matching method.Then interpolation is twice adopted to correct the mileage errors.The analysis of plane curve demonstrates that the points of tangent to spiral,spiral to curve,curve to spiral and spiral to tangent can be used as mileage calibration points individually.With reference to the data from the track inspection car on a high-speed railway,under the confidence of 99.7％,the range of differences between actual mileages and measurement mileages can be controlled at [-23.8 15.6] m and the range of differences of sampling points between two measurement inspections at [-15.9 15.7] m.After the processing of the mileage errors,the range of differences between actual mileages and corrected mileages around the calibration point is [-0.7 0.7] m and the range of mileage differences of sampling points between two correction inspections can be controlled at [-4.2 4.2] m,which shows that the mileage errors could be corrected effectively,especially the errors in long curve.关键词
高速铁路/动检车/里程误差/波形匹配/曲线主点Key words
High speed railway/Track inspection carp/Mileage error/Waveform matching/Key points of curve分类
交通工程引用本文复制引用
汪鑫,王源,王平,王沂峰..高速铁路动检车检测数据里程误差评估与修正[J].铁道标准设计,2018,62(7):46-51,6.基金项目
国家自然科学基金项目(51425804,51378439) （51425804,51378439）
