三维网平差计算在轨道交通铺轨控制测量中的应用  

Application of Three-dimensional Network Adjustment Calculation in Rail Transit Track Laying Control Measurement

作　　者：肖潇 黄志伟[1,2] 龚率 蔡树辉[1,2] 李春华 XIAO Xiao;HUANG Zhiwei;GONG Shuai;CAI Shuhui;LI Chunhua(Chengdu Institute of Survey and Mapping,Chengdu 610081,China;Sichuan Urban Informatization Surveying and Mapping Engineering Technology Research Center,Chengdu 610081,China)

机构地区：[1]成都市勘察测绘研究院,四川成都610081 [2]四川省城市信息化测绘工程技术研究中心,四川成都610081

出　　处：《城市勘测》2025年第2期187-189,共3页Urban Geotechnical Investigation & Surveying

摘　　要：在CPⅢ轨道铺轨控制网测量的基础上,针对现行方法平面高程数据分开处理的不足,提出了基于全站仪采集数据的水平方向值、天顶距和斜距三类观测值进行三维平差计算的数据处理方法。结合工程实例,通过实测数据精度分析,并与现行方法的计算结果进行比较,验证该方法的准确性,可更好地为轨道铺设提供控制基准。Based on the measurement of CPⅢtrack laying control network,this paper proposes a data processing method for three-dimensional adjustment calculation based on the horizontal direction value,zenith distance and slant distance of the data collected by the total station,aiming at the shortcomings of the current method of separate processing of plane elevation data.Combined with the engineering example,through the accuracy analysis of the measured data and the comparison with the calculation results of the current method,the accuracy of the method is verified,which can better provide the control benchmark for the track laying.

关 键 词：轨道交通 铺轨 CPⅢ 控制测量 三维平差 

分 类 号：P258[天文地球—测绘科学与技术] P207