This paper introduces the horizontalcontrolsurvey of engineering was made by conventional instruments and handy adjustment methods.
本文介绍了利用常规仪器、简易平差方法进行工程平面控制测量。
2
Research purposes: Through the theoretical research, this paper puts forward some suitable suggestions on the main technical standards of horizontalcontrolsurvey for ballastless track construction.
研究目的：通过理论研究，对无碴轨道施工平面控制测量的主要技术标准提出适宜的建议。
3
Therefore, the survey key of excavation line is to controlhorizontal and vertical deviations of tunnel axis.