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文中介绍了曹娥江引水工程施工控制网的布设和计算;主要针对施工支洞这一施工特点建立符合施工放样精度要求的施工平面控制网;增加夜间观测时段、采用高精度光电实测边长与GPS观测数据混合网平差方法,以便提高控制网的可靠性和精度。
This paper introduces the layout and calculation of construction control network of Cao’e River diversion project. The construction plane control net which meets the requirements of construction lofting accuracy is mainly constructed according to the construction characteristics of construction branch holes. The nighttime observation period is increased, Data hybrid network adjustment method to improve the control network reliability and accuracy.