铁道标准设计2025，Vol.69Issue(2)：45-50,6.DOI:10.13238/j.issn.1004-2954.202304050002
一种高速铁路轨道测点线路里程计算新方法
A new Method for Calculating the Mileage of Measuring Points on High-speed Railway Tracks
摘要
Abstract
The deviation calculation of the geometric state parameters of each measuring point on the high-speed railway track is related to the design mileage of the point.In order to evaluate the smoothness of the track,it is necessary to calculate the mileage of each measuring point on the track first.Therefore,the mileage calculation corresponding to each measuring point on the track is the core algorithm of track measurement and its smoothness evaluation.When calculating the mileage of the measured points,the geometric relationship between the measured track points and the straight line or circular curve line is used in the straight line or circular curve section,and the'segmentation approximation'method is used in the transition curve section.Through the verification and calculation of any 16 measuring points on a certain line,the calculated mileage of any track point on the line is compared with its design mileage,and the maximum difference is only 0.1 mm,which is close to complete consistency and has high accuracy.In this method,the geometric relationships such as the distance between the measured track point and the nearby curve control pile point,the azimuth angle and the angle with the line direction are used to judge the line shape of the target point on the line,which avoids the multi-value problem of artificial judgment and iterative solution.At the same time,the segmentation approximation method is used to solve the measured track point mileage on the transition curve segment,which avoids the second derivative calculation of the'extreme value method'and'slope method'.The optimal solution can be obtained by only a small number of iterations.The geometric relationship is clear and easy to understand,and it is also conducive to the programming implementation,which can achieve the automatic calculation of any measured track point mileage.The above mentioned method brings great convenience to the track measurement of high-speed railway.关键词
高速铁路/轨道测点/线路里程/几何关系/分割逼近Key words
high-speed railway/track measurement points/line mileage/geometric relationships/segmentation approximation分类
交通工程引用本文复制引用
李麒麟,刘成龙,谷思文,杨雪峰..一种高速铁路轨道测点线路里程计算新方法[J].铁道标准设计,2025,69(2):45-50,6.基金项目
国家自然科学基金项目(41974013) （41974013）
南昌铁路局科技研究开发计划课题(202160) （202160）
