摘要
分析了影响西堠门大桥基准索股垂度测量精度的主要因素,提出了基于单向大气折光系数改正垂度的方法,并在应用中获得了较好的结果,能满足基准索股垂度测量的精度要求,对同类工程有借鉴意义。
Through analyzing the main factors that affect the surveying precision of datum wire strand sagging of the Xihoumen bridge, this paper proposes a method based on the single - refraction coefficient for sagging correcting, and the better surveying result is obtained during using, and it meets the precision requiring of sagging surveying. So the method has instructional significance to the similar project.
出处
《四川测绘》
2007年第5期235-237,共3页
Surveying and Mapping of Sichuan
关键词
基准索股
折光系数
垂度
精度
三角高程测量
Datum Wire Strand
Single- refraction coefficient
Sagging
Precision
Trigonometric leveling
