浅谈利用GPS布设大型桥梁施工控制网

Discussion on Construction Control Network Layout for Big Bridge Using GPS Technology

结合本公司实施的一个大桥施工控制网测量项目,详细介绍了利用GPS进行大型桥梁施工控制网布设的方法,从方案比选、选点埋石、坐标系和投影面选择、测量过程中的质量控制措施、控制网的复测与维护等方面做了较为详细的介绍。

Based on the control network surveying project of big bridge implemented by author＇s company, the paper introduces the method of construction control network layout for big bridge using GPS technology including technology scheme comparison and selection, control point selection and markstone building, coordinate system and projection selection,engineering quality control, resurveying and maintaining of control network and etc.