摘要
采用自动化全站仪[1]进行地铁保护区监测已经成为国内地铁监测的常规手段。该套自动化监测系统将全站仪安装于监测区域内,两端各设置4个(共8个)后视棱镜作为控制点,后视棱镜设置在影响区域外默认为不动的基准点,测站坐标通过8个后视棱镜实时更新,从而达到监测目的。但由于列车震动等多方面影响8个后视棱镜发生变形[2],会使得整套自动化监测系统发生整体变形,所以自动化后视棱镜需要定期进行人工复核。本文提出一种自动化监测系统平面控制网复核方法,通过在系统两端各设置1个复核支架和2个复核棱镜,再通过导线测量和相关方法解算能有效测量出后视棱镜及监测支架是否发生位移变形及精准求出变形量的大小。
The use of automated total stations for monitoring subway protection areas has become a common method of subway monitoring in China.The set of automatic monitoring system will be installed in the monitoring area,each end of the 4(a total of 8)rearview prisms as the control point,the rearview prism set outside the influence area defaults to a immovable reference point,the station coordinates through 8 rearview prisms updated in real time,so as to achieve the purpose of monitoring.However,due to the deformation of the 8 rearview prisms due to the impact of train vibration and other aspects,the overall deformation of the entire automatic monitoring system will occur,so the automated rearview prisms need to be manually reviewed regularly.This paper proposes a method for reviewing the plane control network of an automated monitoring system.By setting 1 review bracket and 2 review prisms at each end of the system,and then using wire measurement and related methods to calculate,it is possible to effectively measure whether the rearview prism and monitoring bracket have displacement deformation and accurately determine the size of the deformation.
作者
刘敏
王章华
LIU Min;WANG Zhanghua(Beijing Urban Construction Survey,Design and Research Institute Co.,Ltd.,Hangzhou Branch,Hangzhou 310000,China;Hangzhou Metro Operation Co.,Ltd.,Hangzhou 310000,China)
出处
《测绘与空间地理信息》
2024年第6期201-204,共4页
Geomatics & Spatial Information Technology
关键词
后视棱镜
平面控制网复核
复核支架
复核棱镜
rearview prism
plane control network review
review bracket
review prism
