自由设站三角高程测量在跨河水准测量中的应用  

Application of Free Station Triangulation Leveling in River-crossing Leveling

作　　者：王杏伟 WANG Xingwei(China Railway SIYUAN Survey and Design Group Co.,Ltd.,Wuhan 430079,China)

机构地区：[1]中铁第四勘测设计院集团有限公司,湖北武汉430079

出　　处：《城市勘测》2023年第2期153-156,共4页Urban Geotechnical Investigation & Surveying

摘　　要：提出了一种基于轨道控制网技术的自由设站三角高程跨河测量方法。该方法相对于已有的三角高程跨河测量方法,具有施测方便、作业效率高、自动化程度高等优势。通过多条铁路跨河水准测量实践,证明该方法可以达到二等水准测量精度的要求。In this paper,a free station triangulation elevation cross river survey method has been proposed,which is based on track control network technology.Compared with the existing river crossing survey methods of triangular elevation,our method has the advantages of convenient survey,high operation efficiency and high degree of automation.Through several applications of river crossing leveling survey in different railways,it is proved that this method can meet the requirements of second-class leveling accuracy.

关 键 词：自由设站 跨河测量 三角高程 轨道控制网 对向观测 

分 类 号：P258[天文地球—测绘科学与技术]