基于GNSS的隧道控制网测量技术研究  

RESEARCH ON TUNNEL CONTROL NETWORK MEA SUREMENT TECHNOLOGY BASED ON GNSS

作　　者：赵洪章 ZHAO Hong-zhang(China Railway 18th Bureau Group Co.,Ltd.,300222,Tianjin,China)

机构地区：[1]中铁十八局集团有限公司,天津300222

出　　处：《建筑技术》2025年第6期703-706,共4页Architecture Technology

摘　　要：通过对长大隧道洞外独立控制网进行建网测量及高程控制网加密测量,能够有效消除贯通误差,提高工程质量。本研究以重庆至昆明高速铁路云贵段长大隧道群为工程对象,采用GNSS测量技术,对其中5座长大隧道洞外独立控制网进行建网测量及高程控制网加密测量。基于测量数据,使用RINEX格式的系列数据处理手段对隧道洞外后验横向贯通误差进行计算。研究和试验结果表明,洞内控制测量应严格以本次洞外测量确定的进洞点为基准,并尽可能采用长定向边进行进洞联系测量,以确保测量精度和贯通质量。总体而言,本次控制网建网控制点选点合理,埋设规范,GNSS量测与数据处理手段起到了较强的赋能作用。Through the construction of network measurement and encryption measurement of elevation control network outside the cave of large tunnels,the penetration error can be effectively eliminated and the quality of the project can be improved.In this study,we take the long tunnels in the Yunnan-Guizhou section of the high-speed railroad from Chongqing to Kunming as the project object,and use GNSS measurement technology to build the independent control network outside the tunnels of five long tunnels and carry out the encrypted measurement of the elevation control network.Based on the measurement data,a series of data processing means in RINEX format are used to calculate the a posteriori transverse penetration error outside the tunnels.The study and test show that the in-cave control measurement should be strictly based on the entry point determined by this out-of-cave measurement,and the long directional edge should be used as far as possible for the in-cave contact measurement,so as to ensure the accuracy of the measurement and the quality of the penetration.Generally speaking,the control points of this control network construction network are reasonably selected and buried in a standardized way,and the GNSS measurement and data processing means play a strong empowering role.

关 键 词：GNSS 隧道控制网 工程测量 RINEX 铁路隧道 

分 类 号：TU74[建筑科学—建筑技术科学]