上海国土资源2023，Vol.44Issue(4)：32-36,89,6.DOI:10.3969/j.issn.2095-1329.2023.04.007
长江口崇明岛域跨江高程测量基准网构建与完善
Construction and improvement of elevation measurement datum network for cross-river leveling survey in Chongming Island area of Yangtze River estuary
摘要
Abstract
Since the 1950s,surveyors have been trying to establish a precise elevation datum in Chongming Island which is unified with Shanghai land.Firstly,the elevation datum construction and unified history of Chongming Island was reviewed.Taking the repetition of Shanghai elevation control network in 2021 as an example,the elevation connect leveling from Shanghai land to Chongming Island was elaborated in detail.In the implementation of the project,two cross river leveling lines were realized by making full use of field conditions.The eastern line crossed the A line of LNG cross-river pipeline,and the western line crossed the North Channel of Yangtze Estuary.The key technologies and specific implementation of the two leveling lines were analyzed and discussed in detail.Through the repetition of Shanghai elevation control network in 2021,the unification of the elevation datum of Shanghai land and Chongming Island was realized.Finally,suggestions and prospects for future survey and similar projects were put forward.关键词
水准测量/测量基准/高程连测/跨江测量/基准网Key words
leveling survey/measurement datum/elevation joint survey/cross-river leveling/datum network分类
天文与地球科学引用本文复制引用
雷婉南,赵鹏飞..长江口崇明岛域跨江高程测量基准网构建与完善[J].上海国土资源,2023,44(4):32-36,89,6.基金项目
上海市科委"科技创新行动计划"社会发展科技攻关项目(21DZ1204100) （21DZ1204100）
