城市轨道交通卫星定位控制网复测及稳定性分析  

Repetition and Stability Analysis of Satellite Positioning Control Network for Urban Rail Transit

作　　者：胡玉祥 张洪德 宋云记 孟庆年 王晓兵 HU Yuxiang;ZHANG Hongde;SONG Yunji;MENG Qingnian;WANG Xiaobing(Qingdao Surveying&Mapping Institute,Qingdao 266032,China;West Coast Geomatics Center of Qingdao Co.,Ltd.,Qingdao 266000,China;Qingdao Engineering Research Center of Geographical Information of Underground Space,Qingdao 266032,China)

机构地区：[1]青岛市勘察测绘研究院,山东青岛266032 [2]青岛市西海岸基础地理信息中心有限公司,山东青岛266000 [3]青岛市地下空间地理信息工程研究中心,山东青岛266032

出　　处：《测绘与空间地理信息》2023年第7期72-74,共3页Geomatics & Spatial Information Technology

摘　　要：地铁控制网稳定性直接关系到后续施工各阶段,是保证地铁精准贯通的基础。本文结合青岛城市轨道交通卫星定位控制网建立及复测实践,介绍地铁控制网复测原则、要求和技术方法,对复测结果进行精度评估,通过引入距离较差、坐标点位差与点位中误差等限差,对控制网点稳定性进行分析,给出成果取舍方法,为类似工程提供有益借鉴。The stability of subway control network is directly related to the subsequent construction stages,and it is the basis to ensure the accurate connection of subway.Combined with the establishment and repetition practice of Qingdao urban rail transit satellite positioning control network,this paper introduces the repetition principles,requirements and technical methods of metro control network,evaluates the accuracy of the repetition results,analyzes the stability of control network points by introducing the tolerance of distance difference,coordinate point position difference and point mean square error,and gives the result selection method,which provides a useful reference for similar projects.

关 键 词：城市轨道交通 卫星定位控制网 复测 精度评估 限差 稳定性分析 

分 类 号：P228.4[天文地球—大地测量学与测量工程]