CPIII平面网半盘位测量及其应用实验研究  

Research of half-face observation on CPIII plane network and application experiment

作　　者：刘志[1,2] 刘成龙[1,2] 白建国[3] 达乾龙 

机构地区：[1]西南交通大学地球科学与环境工程学院,四川成都610031 [2]西南交通大学高速铁路运营安全空间信息技术国家地方联合工程实验室,四川成都610031 [3]乌鲁木齐铁路局工务处,新疆乌鲁木齐830011

出　　处：《铁道科学与工程学报》2016年第11期2142-2147,共6页Journal of Railway Science and Engineering

基　　金：长江学者和创新团队发展计划资助项目(PCSIRT)

摘　　要：对实测于某高速铁路CPIII平面网的半盘位数据及其自由设站测量的数据进行平差处理,以CPIII平面网验后精度指标和高铁自由设站精度要求为依据,对平差结果的精度进行一系列的统计与分析,半盘位CPIII平面网的精度,不仅能够满足CPIII平面网的各项精度要求,而且能够满足高铁自由设站测量的精度要求。通过理论分析和实验数据,证明CPIII平面网半盘位测量方法具有可行性,据此提出CPIII平面网测量的新方法,具有测量效率成倍提高的优势,应该在高铁CPIII平面网实际测量中推广使用。On the basis of posteriori precision index, free station measurement precision index, adjustment of theHalf-face observation data of high - speed railway CPIII plane network and free station measurement data wereperformed through the statistical and analysis of the adjustment result. The results show that the precision of thehalf-face observation satisfy not only the accuracy requirements of CPIII plane network, but also the accuracy re-quirements of free station measurement. Through the analysis of theory and experimental data, the feasibility ofthe half-face observation was proved. A new method of measurement for CPIII plane network was proposed,which has the advantage of improving measuring efficiency. The application of half-face observation in actualmeasurement of CPIII plane network needs to be extended.

关 键 词：高速铁路 CPⅢ平面网 半盘位测量 2C互差 自由设站测量 

分 类 号：P258[天文地球—测绘科学与技术]