基于GNSS技术与全站仪济青高速改扩建工点测量中的应用及精度分析  

Application and Accuracy Analysis of GNSS Technology and Total Station Instrument on the Measurement of Reconstruction and Extension of Jiqing Expressway Project

作　　者：吴学超[1] 姜洲 WU Xuechao;JIANG Zhou(Shandong Provincial Institute of Land Surveying and Mapping,Ji′nan 250102,China;Ji′nan Geotechnical Investigation and Surveying Institute,Ji′nan 250101,China)

机构地区：[1]山东省国土测绘院,山东济南250102 [2]济南市勘察测绘研究院,山东济南250101

出　　处：《测绘与空间地理信息》2021年第5期110-113,共4页Geomatics & Spatial Information Technology

摘　　要：GNSS接收机和全站仪组合使用,在道路建设勘察设计阶段应用广泛,能够弥补相互缺点,快速完成工作。本文主要利用测量仪器对济青高速北线扩建进行工点测量,为设计提供精确的资料。首先,利用GNSS接收机在高速公路沿线布设了三等控制网和四等控制网;然后,采用GNSS-RTK技术和徕卡数字水准仪在沿线构筑物两侧布设图根点;最后,利用全站仪进行工点的详细测量,按照统一的顺序进行编号。通过与钢尺测量和设计数据进行比对分析可知,观测误差较小、变形较小,满足了构筑物扩建的测量精度。The combination of GNSS receiver and total station is widely used in the survey and design stage of road construction,which can make up for each other's shortcomings and complete the work quickly.This paper mainly uses measuring instruments to measure the construction site of the extension section of the north line of Jiqing expressway,providing accurate data for the design.Firstly,the third and fourth class control networks are set up along the highway by using GNSS receiver,then the mapping points are set up on both sides of the structures along the expressway by using GNSS-RTK technology and Leica digital level.Finally,the detailed measurement of the working points is carried out by using total station instrument,and points are numbered according to the unified order.Through comparison and analysis between the steel ruler measurement and design data,the observation error and the deformation are small,which meet the measurement accuracy of structure extension.

关 键 词：GNSS 高速扩建 工点 控制网 精度分析 

分 类 号：P228.4[天文地球—大地测量学与测量工程]