三角高程法跨海高程传递实验及应用  

Experiment and application of sea-crossing elevation transference based on trigonometric levelling

作　　者：吴迪军[1] 熊伟[1] 

机构地区：[1]中铁大桥勘测设计院集团有限公司,武汉430050

出　　处：《测绘科学》2016年第6期130-134,共5页Science of Surveying and Mapping

基　　金：中国中铁股份有限公司科技开发计划项目(2012-重大-2)

摘　　要：针对海上恶劣的气候环境和不利的观测条件致使长距离跨海高程传递测量难度加大的问题,该文设计了一套基于全站仪三角高程法的跨海高程传递测量技术方法,并在4.3km跨距的跨海场地上进行实验,实验结果达到国家二等水准测量的精度要求。该方法已应用于港珠澳大桥跨海高程传递中,目前已完成30跨次的跨海高程测量,测量成果全部达到二等跨河水准测量的精度要求;路线总长约45.7km的全桥跨海高程贯通测量高差与陆域一等水准测量高差的互差仅为24.8mm,小于二等检测限差(40.56mm)。实验研究及工程应用分析结果表明,全站仪三角高程法适用于10km以内跨距的跨海高程传递,成果精度可达国家二等水准测量标准。In view of the sea abominable climate environment and unfavorable conditions of observation,a method of sea-crossing leveling technology based on total station trigonometric leveling was proposed in this paper.Experimental surveying were carried out on the 4.3km span sea-crossing site and the results met the precision requirements of national second order leveling.This method was applied to the sea-crossing levelling of Hong Kong—Zhuhai—Macao Bridge,of which 30 crossing segments of survey were completed,and the measurement results met the accuracy requirements of national second order river-crossing leveling;the error between the total sea-crossing height difference on the approximately45.7km long levelling route over the sea and the height difference of the first order land levelling was only24.8mm,which was less than the check survey tolerance of national second order leveling（40.56mm）.Engineering application results showed that the sea-crossing trigonometric levelling based on total station was applicable for sea-crossing levelling of crossing span within 10 km,and its accuracy could meet the standard of national second order levelling.

关 键 词：三角高程法 跨海高程传递 全站仪 跨海大桥 

分 类 号：P224.2[天文地球—大地测量学与测量工程]