桥巩水电站首级施工控制网设计与施测

Design and Measurement of First Construction Control Network for Qiaogong Hydropower Station

介绍了桥巩水电站首级施工控制网的方案设计、施测和数据处理方法。在通视困难的平丘地区,在大比例尺施工总布置图上选点,并利用RTK放样。结合实地情况进行网形优化后,选取合适的平高点,提高了作业效率。通过精度统计和分析,表明桥巩水电站首级施工控制网的精度达到了规范的要求。

The design, measurement and data processing of first construction control network for Qiaogong Hydropower Station are introduced in this paper. Sites are selected on large-scale general construction plan for hilly areas that boast unfavorable visual conditions, and RTK is used for staking out. After the shape of the network is optimized by taking local conditions into consideration, working efficiency is promoted by selecting appropriate sites with the same height. The accuracy of first construction control network of Qiaogong Hydropower Station reaches standards through accuracy statistics and analysis.