摘要
通过介绍双次对向观测法、中间设站观测法、单向双觇标(棱镜)三角高程测量法等测量方法,对全站仪三角高程测量方法的基本原理和精度进行了讨论。通过分析实际应用中的相关问题,认为影响以上观测方法高差测量精度的主要因素为天顶距的大小及其观测误差、大气垂直折光系数测定的误差,仪器高和目标高的量测误差亦是影响因素之一,测距误差的影响则较小。全站仪三角高程测量法可在城市和工程测量中广泛应用。
The basic principle and accuracy of total station trigonometric leveling method are discussed by introducing the measurement methods such as reciprocal leveling,intermediate station observation and one-way double targets(prism)trigonometric leveling.By analyzing the relevant problems in practical application,it is considered that the main factors affecting the height difference measurement accuracy of the above methods are the size of zenith distance and its observation error,the error of atmospheric vertical refraction coefficient measurement.The measurement error of instrument height and target height is also one of the influencing factors,and the influence of ranging error is slight.Total station trigonometric leveling method can be widely used in urban and engineering surveying.
作者
严伯铎
张立臣
孙久长
王宇平
孙会超
Yan Boduo;Zhang Lichen;Sun Jiuchang;Wang Yuping;Sun Huichao(Shandong Jiankan Group Co.,Ltd.,Jinan 250031,Shandong,China)
出处
《岩土工程技术》
2021年第6期351-355,360,共6页
Geotechnical Engineering Technique
关键词
全站仪
三角高程测量
测量精度分析
total station
trigonometric leveling
precision ananysis
