深山峡谷高速公路GNSS高程测量技术  

GNSS Height Measurement Technology of Deep Canyon Expressway

作　　者：崔同菊 杨元林 罗鸿儒 CUI Tong-ju;YANG Yuan-lin;LUO Hong-ru(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)

机构地区：[1]中国水利水电第十四工程局有限公司,云南昆明650041

出　　处：《云南水力发电》2022年第5期206-210,共5页Yunnan Water Power

摘　　要：目前,国内基础设施建设正突飞猛进的发展,测量作为基础设施建设不可缺少的重要组成部分,随着科学技术的不断进步,GNSS测量正逐步取代传统测量技术。提出一种适合于高山隧道局部区域的似大地水准面模型优选方法,该方法利用已知点高程异常与EGM2008模型得到高程异常差,对残余项建立多种拟合函数模型进行优选,根据内、外符合精度确定最终模型,建立了最适合本区域的局部高程拟合模型。At present,domestic infrastructure construction is developing rapidly.Measurement is an indispensable and important part of infrastructure construction.With the continuous progress of science and technology,GNSS measurement is gradually replacing traditional measurement technology.This paper presents a method for optimizing the quasi-geoid model suitable for local area of alpine tunnels.This method obtains the elevation anomaly difference by using the known point elevation anomaly and EGM2008 model,establishes several fitting function models to optimize the residual items,determines the final model according to the internal and external coincidence accuracy,and establishes the local elevation fitting model which is most suitable for this area.

关 键 词：深山峡谷 高程测量 GNSS测量 EGM2008模型 北斗 

分 类 号：U412.24[交通运输工程—道路与铁道工程]