改进的二等跨河水准测量在广州市地铁建设中的应用  

Application of Improved Second-Class River-crossing Leveling in Guangzhou City Metro Construction

作　　者：刘演志[1] 秦亮军[1] 王齐林[1] 

机构地区：[1]广州市城市规划勘测设计研究院,广东广州510060

出　　处：《地矿测绘》2010年第1期27-28,32,共3页Surveying and Mapping of Geology and Mineral Resources

摘　　要：为实现广州市轨道交通建设目标,在广州地铁建设工程中布设了覆盖整个地铁线路的二等水准高程控制网。基于此,介绍了广州市地铁建设水准控制网二期工程中,改进的测微法二等跨河水准测量方法的施测及精度评定。通过施测检验,测量成果完全满足工程建设精度要求,为广州市地铁建设工程的顺利完成提供了可靠的数据支持。To achieve the goal of rail transit construction, the Guangzhou subway construction project at the height control emplaced cover the whole of the second subway line standard control network. This paper describes the Guangzhou subway construction quality control network in the second phase of the project, with the improved micrometer gauge of second-class fiver-crossing leveling measurement methods and its accuracy evaluation. The experimental results show that the measurement accuracy meets the construction requirements, provides reliable data to support for the Guangzhou City metro successful completion of the construction.

关 键 词：跨河水准 测微法 高程控制 精度 

分 类 号：P224.1[天文地球—大地测量学与测量工程]