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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

第13卷    第11期    总第80期    2016年11月

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文章编号:1672-7029(2016)11-2142-06
CPIII平面网半盘位测量及其应用实验研究
刘志1,2,刘成龙1,2,白建国3,达乾龙1,2

(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)

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。

 

关键字: 高速铁路;CPIII平面网;半盘位测量;2C互差;自由设站测量

Research of half-face observation on CPIII plane network and application experiment
LIU Zhi1,2,LIU Chenglong1,2,BAI Jianguo3 ,DA Qianlong1,2

1. Faculty of Geosciences and Environment Engineering, Southwest Jiaotong University, Chengdu 610031, China; 2. State-province Joint Engineering Laboratory of Spatial Information Technology of High-Speed Rail Safety, Chengdu 610031, China; 3. Urumqi Railway Bureau, Urumqi 830011, China

Abstract:On the basis of posteriori precision index, free station measurement precision index, adjustment of the Half-face observation data of high - speed railway CPIII plane network and free station measurement data were performed through the statistical and analysis of the adjustment result. The results show that the precision of the half-face observation satisfy not only the accuracy requirements of CPIII plane network, but also the accuracy requirements of free station measurement. Through the analysis of theory and experimental data, the feasibility of the 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 actual measurement of CPIII plane network needs to be extended.

 

Key words: high-speed railway; CPIII plane network; half-face observation; 2C mutual differences; free station measurement

ISSN 1672-7029
CN 43-1423/U

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