隧道盾构管片非接触式全周形貌测量方法研究  

Study on the Measurement Method of Non-Contact Full Peripheral Morphology of Tunnel Shield Segment

作　　者：鲁志鹏[1] 吴鑫林 陈稳 张忆 龙葳 张心源 LU Zhi-peng;WU Xin-lin;CHEN Wen;ZHANG Yi;LONG Wei;ZHANG Xin-yuan(China Railway Siyuan Survey and Design Group Co.Ltd.,Wuhan 430063,China;Jiangsu Construction Bureau of Transportation Engineering,Nanjing 210004,China)

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063 [2]江苏省交通工程建设局,南京210004

出　　处：《工程建设与设计》2024年第21期66-69,共4页Construction & Design for Engineering

摘　　要：针对隧道盾构管片几何质量检测的需求,提出了非接触式全周形貌测量方法。首先,遥控移动载体移动至测点,投影仪投射散斑图像,工业相机捕获并计算得到的点云数据;然后,采集多个测点;最后,将各局部点云数据进行拼接,获得被测物体的全周形貌。该快速半自动的检测方法可获得隧道盾构管片全周尺寸,精度达到0.2%。Aiming at the requirement of geometric quality inspection of tunnel shield segments,a non-contact full circumference shape measurement method is proposed.First,the remote moving carrier moves to the measuring point,the projector projects the speckle image,the industrial camera captures and calculates the point cloud data,then collects multiple measuring points,and finally stitches the local point cloud data to obtain the full circumferential shape of the measured object.This rapid semi-automatic detection method can obtain the full circumference size of the tunnel shield segment with an accuracy of 0.2%.

关 键 词：隧道工程 盾构管片 非接触 移动载体 摄影测量 投影散斑 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]