精密三角高程测量技术在航电枢纽工程中的应用  

Application of precision triangulation elevation measurement technology in navigation and electricity hub projects

作　　者：卢自来 刘超群 LU Zi-lai;LIU Chao-qun(Sichuan Communication Surveying&Design Institute Co.,Ltd,Chengdu 610017,China)

机构地区：[1]四川省交通勘察设计研究院有限公司,四川成都610017

出　　处：《水运工程》2023年第S01期21-25,47,共6页Port & Waterway Engineering

基　　金：四川省交通勘察设计研究院有限公司科技项目(232022015)。

摘　　要：针对航电枢纽工程建设中无法实施传统跨江(河)水准测量的高等级高程控制测量的问题,开展精密三角高程测量技术的理论和应用实践研究。介绍三角高程测量技术的原理,分析三角高程测量误差影响因素,并提出误差削减措施。以犍为航电枢纽高程控制网测量为研究案例,采用徕卡TS50测量机器人,选择适宜的观测时间窗口,验证全站仪精密三角高程测量代替二等跨江(河)水准测量的可行性。实践表明该方法行之有效,能满足二等水准测量规范限差要求。研究成果对后续大型水运航电枢纽建设中的高等级高程控制测量具有指导意义。In the construction of navigation and electricity hub projects, traditional river-crossing leveling for high-grade elevation control measurement cannot be implemented. In view of this, this paper carries out research on the theory and application practice of a precision triangulation elevation measurement technology. The paper introduces the principle of triangulation elevation measurement technology, analyzes the factors affecting the error of triangulation elevation measurement, and proposes measures for mitigating errors. Taking the elevation control network measurement in Qianwei navigation and electricity hub as a case study, we use the Leica TS50 measuring robot and selects a suitable observation time window to verify the feasibility of replacing second-class river-crossing leveling with total station precision triangulation elevation measurement. Practice shows that the method is effective and can meet the difference limit requirements of second-class leveling specifications. The research results can provide guidance for the high-grade elevation control measurement in subsequent large-scale navigation and electricity hub construction.

关 键 词：航电枢纽工程 精密三角高程 跨江(河)二等水准 TS50测量机器人 

分 类 号：P216[天文地球—测绘科学与技术] U641[交通运输工程—船舶及航道工程]