基于GNSS的地铁延长线控制测量

GNSS-based Control Survey of Subway Extension Line

以深圳地铁轨道交通3号线东延段GNSS控制测量为例,阐述了地铁延长线路的GNSS控制网布测、数据处理及精度分析等内容,结果表明该项目GNSS控制网布设合理,精度满足规范要求。针对深圳市地铁控制测量亟需解决的问题进行了归纳,给出了相应建议和研究方向,具有一定参考意义。

Taking the GNSS control survey of the eastern extension of Shenzhen Subway Line 3 as an example, this paper describes the GNSS control network layout and measurement, data processing and precision analysis of the extended subway line.The results show that the layout of GNSS control network is reasonable and the accuracy meets the specification requirements. The problems about metro control survey in Shenzhen that need to be solved are summarized, and the corresponding suggestions and research directions are given,which have certain reference significance.