浅谈GPS和精密导线在轨道交通控制测量中的应用

The Application of GPS and Precise Traverse in Rail Transit Control Survey

城市轨道交通线路铺设项目施工前,需要进行控制测量,包含平面和高程两部分,其对精度的要求都很高,控制测量精度的好坏直接影响施工项目的精度和质量,本文主要针对其中的平面控制测量部分,论述GPS和精密导线测量在轨道交通控制测量中的应用方法,总结经验,探讨如何更好得完成控制测量的实施,优化工作流程,提高测量精度,为类似项目的实施提供参考依据。

We need to do control survey before lay the urban rail transit, including the plane control survey and elevation control survey, which require the high accuracy because it directly affects the quality of the construction project. In this paper, we discuss application methods of GPS and precision traverse survey, and summarize the experience to explore a better method to implement the plane control survey and optimize workflow to improve the precision of plane control sur- vey which provided an example for similar project.