科技创新与应用2024，Vol.14Issue(21)：156-159,4.DOI:10.19981/j.CN23-1581/G3.2024.21.037
EGM2008全球重力场模型在输电线路工程中的应用
刘丰 1陈西强1
作者信息
- 1. 中国电建集团福建省电力勘测设计院有限公司,福州 350003
- 折叠
摘要
Abstract
In view of the normal height required by transmission line engineering,this paper introduces the basic principles of direct method,mean method and height difference method based on EGM2008 global gravity field model to obtain the normal height of a certain UHV transmission line project.It is concluded that the direct method can not meet the application requirements of transmission line engineering,but the mean method and high difference method can meet the requirements of transmission line engineering specifications,and the accuracy of the mean value method and the height difference method are the same in the whole application.After selecting the base point of the height difference method,there is a certain correlation between the accuracy of the normal height acquisition and the reference point in the spatial distance.In the case of excess known control points,the base point should be selected in stages to ensure that the control range of each base point is less than 30 km.关键词
EGM2008/输电线路/直接法/均值法/高差法Key words
EGM2008/transmission line/direct method/mean value method/height difference method分类
天文与地球科学引用本文复制引用
刘丰,陈西强..EGM2008全球重力场模型在输电线路工程中的应用[J].科技创新与应用,2024,14(21):156-159,4.
