精密三角高程测量在毛乌素沙漠矿区测量中的应用  

Application of Precise Trigonometric Leveling in Mu Us Desert Mining Field Survey

作　　者：李松 李明 杨晓军 LI Song;LI Ming;YANG Xiaojun(China Coal Xi′an design engineering Co.,Ltd.,Xi'an,Shaanxi 710054,China)

机构地区：[1]中煤西安设计工程有限责任公司,陕西西安710054

出　　处：《测绘标准化》2022年第4期77-80,共4页Standardization of Surveying and Mapping

摘　　要：针对毛乌素沙漠地区大气垂直折光及垂线偏差大且变化不规律,造成单站和中间设站三角高程测量精度低等问题,提出一种精密三角高程测量方法。该方法基于几何水准测量方法,采用经改装后双台高精度自动照准全站仪进行对向观测,以消除毛乌素沙漠大气垂直折光和垂线偏差的影响。通过在毛乌素沙漠地区的矿区控制测量中的实践,验证该方法的可行性及可靠性。测量结果表明,该方法的测量精度可达到二等水准测量的精度要求,满足矿区建设要求。Aiming at the problem of low precision of trigonometric leveling with single station and intermediate stations caused by the large deviation and irregular variation of atmospheric vertical refraction and vertical line in Mu Us Desert, a precise trigonometric leveling method is proposed in this paper. This method is based on geometric leveling method, and the modified double high-precision automatic collimation total stations are used to observe the opposite direction, so as to eliminate the influence of vertical refraction and vertical line deviation of the atmosphere in Mu Us Desert. The feasibility and reliability of this method are verified through the practice of control survey in the mining field of Mu Us Desert. The results show that the survey accuracy of the method can meet the requirements of the specifications for the second order leveling and the mining field construction.

关 键 词：精密三角高程测量 矿山测量 大气垂直折光 垂线偏差 毛乌素沙漠 

分 类 号：P227.3[天文地球—大地测量学与测量工程]