运营期高速铁路精测网复测技术探讨  

Discussion on repetition technology of high speed railway precise engineering control network during operation period

作　　者：宋卓阳 SONG Zhuoyang(China Railway Design Group Corporation,Tianjin 300251,China;Tianjin Key Laboratory of Rail Transit Navigation Positioning and SpaceTime Big Data Technology,Tianjin 300251,China)

机构地区：[1]中国铁路设计集团有限公司,天津300251 [2]天津市轨道交通导航定位及时空大数据技术重点实验室,天津300251

出　　处：《测绘标准化》2023年第3期61-67,共7页Standardization of Surveying and Mapping

基　　金：中国铁路设计集团有限公司科技研究计划重点课题(2022A02538011)。

摘　　要：常规的运营期高速铁路精测网复测技术存在效率低,占用天窗时间长,复测的平面坐标、高程成果与原测量成果吻合程度较差等问题,并且不能完全满足运营维护的需要。本文从各级精测网复测控制网布设、测量精度及数据处理方法出发,对各级精测网复测与数据处理方法进行优化改进,提出运营期高速铁路精测网正向与逆向复测技术,并基于国内某条运营期高速铁路精测网复测工程项目,验证新方法的可行性和适用性。结果表明,该技术不仅大幅提高了运营期高速铁路精测网复测工作效率,还提高了CPIII三维网的精度及与其原测成果的吻合程度,很好地解决了常规复测方法所存在的问题。The conventional repetition technology of high speed railway precise engineering control network during operation period has problems such as low efficiency,long skylight occupancy time,and poor consistency between the plane coordinates and elevation results of repetition survey and the original results,which cannot fully meet the needs of operation and maintenance.This paper starts from the control network layout,survey accuracy and data processing method of the repetition of precise engineering control network,optimizes and improves the repetition and data processing methods of the precise engineering control network at all levels,proposes forward and reverse repetition technologies of the high speed railway precise engineering control network during operation period,and verifies the feasibility and applicability of the new method based on an repetition project of a domestic high speed railway precise engineering control network during operation period.The results indicate that the technology not only greatly improves the efficiency of high speed railway precise engineering control network during operation period,but also improves the accuracy of CPIII three dimensional repetition network and the consistency between its repetition results and its original survey results,which well solves various problems existing in conventional repetition methods.

关 键 词：高速铁路精测网 复测技术 数据处理 运营维护 

分 类 号：P258[天文地球—测绘科学与技术]