超大环形结构工程高精度测量控制研究

RESEARCH ON HIGH-PRECISION MEASUREMENT CONTROL OF SUPER-LARGE CIRCULAR STRUCTURE

高能同步辐射光源项目属超大型环形结构工程,占地面积大、放样要素多,不仅要克服大场区高精度的技术要求,还要统筹协调测量工作在时间和空间上的安排,选择有利的穿插布网时间,对于测量整体工作尤为关键。本工程应用了GNSS静态、导线测量等技术,有机自然地穿插在施工工序中,较好地保证了测量工作有序进行,各项测量工作均符合规范和设计文件的要求,取得了良好的经济效益和社会效益。

High energy photon source project is a super-large circular structure project. It covers large area and involves diversified samples. It needs not only to overcome the high-precision technical requirement of large area, but also to coordinate and arrange the time and area for the measurement.Selection of advantageous time for crossed network setting its critical for the overall measurement. This project used GNSS static and traverse measurement techniques to naturally cross with each other during construction and to effectively guarantee the smooth measurement. It was found that all measurements satisfied requirements of specification and design document and that favorable economic and social benefits were obtained.