摘要
特大城市中心城区轨道交通地形图测量复杂且禁止测量区域较多,文中提出了以静态GPS、水准测量、广州市城市连续运行卫星定位测量系统(Gzcors)及广州市似大地水准测量成果(Gzgeoid)相结合的控制网建立方法,介绍了轨道交通地形图碎步点采集特点及精度检验方法,最后利用影像来局部替代禁止测量地区。结果表明,本项目所采用的方法可以很好地满足特大城市中心城区轨道交通地形图测量的需要。
Urban rail transportation topography of megacity is very complex,which has many forbidden measurement areas. This paper proposes a combined control network establishing method by using the static GPS,leveling,Gzcors,and Gzgeoid. Moreover,the key points of field data acquisition and the precision test method are analyzed. The forbidden measurement areas are locally replaced by remote sensing images. The results showed that the method used in this project,which can well meet the needs of urban rail transportation topographic of megacity,has certain reference significance to the implementation of similar projects.
出处
《城市勘测》
2015年第5期115-117,共3页
Urban Geotechnical Investigation & Surveying
基金
国家自然科学基金重点项目(41431178)
