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.
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
关键词
跨河水准
测微法
高程控制
精度
river-crossing leveling
micrometer gauge
elevation control
precision
