摘要
GPS静态定位技术已逐步取代传统的三角测量技术,成为桥梁施工平面控制网的主流建网技术。结合多年来的桥梁工程测量实践,系统地分析和总结了GPS桥梁施工平面控制网精度、基准及网形优化设计、控制点布设、外业观测及数据处理的方法和技术要点,并在某长江铁路特大桥工程中得到了应用和验证。最后指出了需要进一步研究的相关技术问题。
Static GPS positioning has been gradually taking the place of the traditional triangulation method, and it has become the main technology of horizontal control network for bridge construction. Combining with the practice ofbridgeengineeringsurveyingovertheyears, the methods and technical points of accuracy and datum design, network optimization, reconnaissance for control point selection, field observation and data processing of GPS horizontal control network for bridge construction are analyzed and summarized systematically, which are then applied to a super Yangtze railway bridge engineering and got verified. Finally the related technical problems, which are needed to be studied further, are brought forward.
出处
《地理空间信息》
2009年第1期49-51,共3页
Geospatial Information
关键词
GPS
静态定位
桥梁施工
平面控制网
GPS
static positioning
bridge construction
horizontal control network
