综合交通枢纽测量控制网技术研究

Research on Survey Control Network Technology of Comprehensive Traffic Junction

综合交通枢纽一般引入铁路、公路、城市轨道等工程项目,各勘察设计单位依据行业测量规范,分别建立适合工程的测量控制网,测量人员需要经常进行坐标系统之间的联测与坐标转换,给工程建设带来不便。结合徐宿淮盐铁路项目,对综合交通枢纽测量控制网进行研究,提出以磁悬浮和高速铁路为枢纽的核心,建立基于CGCS2000国家坐标系为基准的独立坐标系统,分级施测测量控制网,达到规划、设计、施工测量体系的统一,为运营维护、监测提供科学依据。

Comprehensive transportation hubs generally include railway, highway, urban rail and other engineering projects. In order to meet the specification requirements, engineers from the survey and design units establish independent engineering control network. As a result, the survey engineers need to convert coordinates between different coordinates system frequently, which brings inconvenience to engineering construction. Based on the project of Xuzhou-Yaneheng High- speed Railway, this paper studies the survey control network of comprehensive traffic junction, and presents the viewpoint of taking high-speed railway and magnetic levitation projects as the core. At the same time, we establish an independent coordinate system based on CGCS2000 and conduct the layout of the measurement control network gradually, in order to achieve the unity of planning, design and construction measurement system. It could provide scientific basis for operation and monitoring.