长距离多方案高精度跨江高程传递实践和改进  

Practice and improvement of high precision river crossing elevation transmission with long distance and multi schemes

作　　者：韩超斌 庞正辉 吴小串 李金涛 石林峰 邓廷银 HAN Chaobin;PANG Zhenghui;WU Xiaochuan;LI Jintao;SHI Linfeng;DENG Tingying(The First Geodetic Survey Team,MNR,Xi′an,Shaanxi 710054,China;Cewud Group Company Limited,Wuhan,Hubei 430070,China)

机构地区：[1]自然资源部第一大地测量队,陕西西安710054 [2]中工武大设计集团有限公司,湖北武汉430070

出　　处：《测绘标准化》2023年第3期49-54,共6页Standardization of Surveying and Mapping

基　　金：南昌市测绘地理信息“十三五”规划(JXZC2017-C170)。

摘　　要：目前在长距离跨江高程测量传递研究中,鲜有多种传递方案与多个闭合环线路水准测量比对方面的探讨,本文提出在途经赣江的水准路线中采用测距三角高程法和常规水准法2种观测方式,实施直跨、大桥、长隧及中桥4种高程传递方案,构成6个闭合环进行比对,同时对测距三角高程法进行改进试验,获得了多组高精度高程传递数据,各环路闭合差结果远优于二等水准测量限差要求。测量结果表明,测距三角高程法在长距离跨江水准测量中经济效益显著,可在水系发达地区推广采用。At present,there are few explorations on the comparison of multiple transmission schemes and multiple closed loop line leveling in the research of long distance river crossing elevation survey and transmission.this paper adopts ranging trigonometric leveling method and conventional leveling method in leveling routes passing through Gan River,and carries out four elevation transmission schemes of straight span,long bridge,long tunnel and middle bridge to form six closed loops for comparison.At the same time,the improvement experiment in the ranging trigonometric leveling method has obtained several sets of high precision elevation transmission data,and the closing error results of each loop are far better than the requirements of second class leveling limit error.The results show that the ranging trigonometric leveling method has significant social and economic benefits in long distance cross river leveling,and can be widely used in developed areas of water system.

关 键 词：测距三角高程 跨江高程传递 数据精度 方案改进 

分 类 号：P208[天文地球—地图制图学与地理信息工程]