GPS控制网在把总湾大桥控制测量中的应用

Application of GPS Control Network in the Control Surveying for Bazongwan Bridge

基于GPS测量建立的施工测量控制网具有精度高、布网方便等优点,笔者根据国家高速公路杭州至瑞丽线湖南境内凤凰至大兴(湘黔界)段,一个特大桥——把总湾大桥工程GPS控制网的实际情况,阐述了GPS控制网设计、实施、数据处理方法及精度控制等,以便在今后的工作中进行参考。

The construction surveying control network by GPS surveying techniques has the advantages of high accuracy,convenient for setting out the control network,etc.According to the practical situation of GPS control network of Bazongwan Grand Bridge project in the section of Fenghuang to Daxing of Hangzhou-Ruili National Expressway,this paper discussed the design,implementation,data processing method,accuracy control of GPS control network.It will provide reference for the further project.