人民长江Issue(14)：65-69,87,6.DOI:10.16232/j.cnki.1001-4179.2015.14.019
港珠澳大桥工程宽海域高精度高程传递方法探讨
Discussion on high precision elevation transfer method in wide sea area of Gangzhu′ao Bridge
杨培兵 1赖金富 1吴有清1
作者信息
- 1. 长江三峡勘测研究院有限公司 武汉，湖北 武汉430074
- 折叠
摘要
Abstract
In the construction survey of Gangzhu′ao Bridge works, due to the large survey distance crossing the sea and the lack of specific national standard, a specified survey scheme should be designed according to the practical condition. In order to obtain the accurate and reliable elevation transfer result, 3 methods of theodolite angle method, triangle height method and GPS leveling method were adopted in elevation transfer survey. Based on the analysis of the main technological problems in wide sea elevation transfer, the special observation mark was designed, which solved the long-distance sighting problem; a set of effec-tive survey flow was made by considering the influence of the shake of offshore observation platform on the survey accuracy, which ensured the collection rate of effective data. The comparison and analysis of the survey results obtained by different units and sur-vey methods show that the elevation transfer results was reliable, meeting the technological index requirement by national second order leveling standard.关键词
高程传递/测量方案/经纬仪法/三角高程法/GPS水准法/岛隧工程/港珠澳大桥Key words
elevation transfer/measurement scheme/theodolite angle method/triangle height method/GPS leveling method/island and tunnel project/Gangzhu′ao Bridge分类
天文与地球科学引用本文复制引用
杨培兵,赖金富,吴有清..港珠澳大桥工程宽海域高精度高程传递方法探讨[J].人民长江,2015,(14):65-69,87,6.
