斜轴投影在公路勘察设计基础控制网建立中的应用探讨  

Application of oblique axis projection in establishment of basic control network in highway survey and design

作　　者：林小勇 

机构地区：[1]甘肃省交通规划勘察设计院股份有限公司,甘肃兰州730030

出　　处：《中国建材科技》2020年第4期112-114,共3页China Building Materials Science & Technology

摘　　要：工程基础控制网建立过程中,为了保证长度变形不超限,进行椭球投影时往往采用分区分带的方法,但对于东西跨度较大的带状工程,过多的分区会给设计、施工带来诸多不便。本文主要探讨采用新的投影方法以减少控制网分区数量,方便后续工作的开展。In the building process of the engineering foundation control network, in order to ensure that the deformation of length is not exceeding, the method of dividing zones is often used in ellipsoidal projection. However, for the banded project with large span from east to west, too many zones will bring a lot of inconvenience to design and construction. This paper mainly discusses the use of a new projection method to reduce the number of control network partition to facilitate the follow-up work.

关 键 词：高斯投影 长度变形 斜轴投影 

分 类 号：U412.2[交通运输工程—道路与铁道工程]