CGTY-2型陀螺全站仪方位角测量实验及其精度分析  

The Azimuth Measurement Experiment and Accuracy Analysis of CGTY-2 Gyro Total Station

作　　者：倪先桃[1] 刘成龙 朱晓 Ni Xiantao;Liu Chenglong;Zhu Xiao(China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China;Faculty of Geosciences and Environmental Engineering,Southwest Jiaotong University,Chengdu 611756,China)

机构地区：[1]中铁二院工程集团有限责任公司,成都610031 [2]西南交通大学地球科学与环境工程学院,成都611756

出　　处：《铁道勘察》2021年第4期7-10,22,共5页Railway Investigation and Surveying

基　　金：中铁二院工程集团有限公司科研课题(KDNQ202030)。

摘　　要：陀螺定向测量不受天气、时间以及测量环境等多种条件的限制,可以在地理南、北纬度75°之间实现任意测站点的真北方位测定。采用陀螺仪加测陀螺方位角的方法来检核地下导线边的方位,可有效限制地下导线边方位角测量误差的累积,进而提高地下导线的精度。为了研究分析CGTY-2型悬挂带式陀螺全站仪方位角测量的精度及稳定性,设计基于该全站仪的工程控制网方位角测量实验,采集多源数据进行多方面比较,并利用实验数据进行内、外符合精度分析。研究表明,CGTY-2型陀螺全站仪操作便捷、精度可靠、仪器性能稳定,测量效率较陀螺仪有大幅度提升,可在铁路隧道、地铁及矿山测量等地下工程中推广应用。Gyro orientation measurement is not limited by weather,time,measurement environment and other conditions.It can be used to measure the earth's true north direction of any station at the latitude of less than 75 degrees in the South or the North of the earth.The method of gyro azimuth angle measurement is used to check the azimuth of underground traverse,limit the accumulation of azimuth angle measurement error of underground traverse,and improve the accuracy of the underground traverse.In order to study and analyze the accuracy and stability of azimuth measurement of cgty-2 suspended belt gyroscope total station,this paper designed and carried out an azimuth measurement experiment of engineering control network based on cgty-2 suspended belt gyroscope total station,collected and compared multi-source data.Experimental data was adopted to analyze the internal and external coincidence accuracy.The research shows that cgty-2 gyro total station is easy to operate,reliable in accuracy,stable in performance.Tts measurement efficiency is greatly improved compared with gyroscope.It can be widely used in underground engineering such as railway tunnel,subway and mine measurement.

关 键 词：陀螺全站仪 寻北定向 方位角测量 精度分析 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]