摘要
从精密三角高程测量的原理入手,分析了精密三角高程测量中对向观测法的精度,并将该方法应用于武广客运专线大瑶山隧道群段高程控制测量,使测量结果达到了二等水准测量的精度要求。
On the basis of precise trigonometric leveling theory, this paper analyzes precision of the double-direction observation method for precise trigonometric leveling, and reveals that application of this method in vertical control survey in Dayaoshan tunnel groups section of the Wuhan-Guangzhou Passenger Dedicated Line. The result is successful and can meet requirements on precision of second grade leveling.
出处
《铁道建筑技术》
2009年第6期19-22,共4页
Railway Construction Technology
关键词
精密三角高程测量
二等水准
客运专线
precise trigonometric leveling
second grade leveling
passenger dedicated line
