使用GNSS进行高铁精密工程平面控制网复测——以新建铁路北京至唐山铁路为例

GNSS is Used to Retest the Plane Control Network of High-Speed Railway Precision Engineering——Take the New Beijing-Tangshan Railway as an Example

高速铁路精密工程平面控制网作为施工和轨道精调的基准,其精度的高低对轨道能否持久平稳地运行起着至关重要的作用。因此,定期开展控制网复测工作具有重要的现实意义。本研究以新建铁路北京至唐山铁路的精密控制测量平面网复测工作为例,对GNSS技术的观测方法、数据处理和观测精度进行分析。结果表明,该方法满足高铁精密测量的规范要求,对其他类型的铁路的控制网布网及复测具有重要的参考价值。

As the benchmark of construction and track fine adjustment,the accuracy of high-speed railway precision engineering plane control network plays an important role in the long-term and stable operation of the track. Therefore,it is of great practical significance to carry out the retest of control network regularly. In this study,the observation method,data processing and observation accuracy of GNSS technology are analyzed by taking the re-measurement of precision control survey plane network of Beijing-Tangshan railway as an example. The results show that the method meets the specification requirements of high-speed railway precision measurement,and has important reference value for other types of railway control network layout and retest.