摘要
国外普遍采用WGS-84椭球,UTM投影,但是UTM投影在大部分国家存在投影变形量超出规范规定的2.5cm/km的问题。本文基于UTM投影变形的特点介绍了两种简便的处理投影变形超限的方法,对在实际工程项目中UTM投影变形超限的处理方法进行探讨和研究。
WGS-84 ellipsoid and UTM projection are widely used in foreign countries. But UTM projection deformation exceeds 2. 5 cm/km in most countries which doesn’t meet the requirement of specification. In this paper,two simple methods for processing UTM projection deformation overrun are introduced based on the characteristics of UTM projection deformation. The purpose of this article is to discuss and study the methods of processing UTM projection deformation overrun in actual projects.
作者
朱国峰
Zhu Guofeng(CCCC-FHDI Engineering Co.,Ltd.,Guangzhou 510230,China)
出处
《工程勘察》
2020年第7期65-68,共4页
Geotechnical Investigation & Surveying
关键词
UTM投影
投影变形
中央经线
比例系数
UTM projection
projection deformation
central meridian
scale factor
