北斗-INS普速铁路精测精捣方法及应用  

BeiDou-INS precision measurement and tamping method for ordinary speed railway

作　　者：房博乐 梁永 楼梁伟 FANG Bole;LIANG Yong;LOU Liangwei(China Railway Design Corporation,Tianjin 300251,China;China Academy of Railway Sciences,Beijing 100081,China)

机构地区：[1]中国铁路设计集团有限公司,天津300251 [2]中国铁道科学研究院集团有限公司,北京100081

出　　处：《测绘通报》2024年第7期147-151,共5页Bulletin of Surveying and Mapping

基　　金：中国国家铁路集团有限公司科技研究开发计划(N2021G048);中国铁路设计集团有限公司重点课题(2022A02538008)。

摘　　要：既有普速铁路轨道精测精捣作业天窗时间点短,对作业效率要求高,作业效果直接影响轨道质量和乘客舒适度。利用大型养路机械自带的测量系统边测量边捣固整治效果较差,仅能够控制线路的大体不平顺性。采用相对轨检仪测量数据指导大型养路机械进行数字化捣固,捣固效果得到提升,但仍无法控制绝对线形和长波不平顺。本文对北斗-惯性导航系统(INS)普速铁路精测精捣方法进行了阐述,并使用北斗-INS轨道几何状态测量仪对实际线路进行了测量,通过北斗数据处理、组合导航融合解算和轨道线形拟合优化,得到了能够用于指导大型养路机械数字化捣固的起道量和拨道量。精测精捣实际作业完成后,对轨道静态TQI改善情况进行了统计分析,结果表明北斗-INS普速铁路精测精捣方法作业效率高且改善轨道质量效果显著。The skylight time for precise measurement and tamping of existing ordinary speed railway track is short,which requires high operation efficiency.The operation effect directly affects the track quality and passenger comfort.The use of the measurement system provided by large-scale road maintenance machinery for both measurement and tamping has poor rectification effects,and can only control the overall unevenness of the track.Using relative rail inspection instruments to measure data to guide large-scale road maintenance machinery in digital tamping has improved the tamping effect,but it is still unable to control absolute linear and long wave irregularities.In this paper,the principle of the BeiDou-inertial navigation system(INS)precision measurement and tamping method of the ordinary speed railway is described,and the actual line is measured using the BeiDou-INS track geometry state measuring instrument.Through the BeiDou data solution,integrated navigation fusion processing and track alignment fitting optimization,the track amount and track setting amount that can be used to guide the digital tamping of large road maintenance machinery are obtained.After the completion of the actual operation of precise measurement and tamping,statistical analysis is conducted on the improvement of the static TQI of the track.The results show that the BeiDou-INS precision measurement and tamping method for the ordinary speed railway has high operational efficiency and significant improvement in track quality.

关 键 词：普速铁路 精测精捣 组合导航 轨道质量 

分 类 号：P228[天文地球—大地测量学与测量工程]