基于三维激光扫描技术的隧道检测技术研究  

Study on the 3D laser scanning technology for tunnel inspection

作　　者：王令文[1] 程效军[1] 万程辉[1,2] 

机构地区：[1]同济大学测绘与地理信息学院,上海200092 [2]南昌工程学院水利与环境工程学院,南昌330099

出　　处：《工程勘察》2013年第7期53-57,共5页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金(项目编号:40971241);现代城市测绘国家测绘地理信息局重点实验室(项目编号:20111205W)

摘　　要：三维激光扫描技术是一种新型的三维测量技术,本文介绍了该技术在隧道检测中的应用,首先采用全站仪对点云数据绝对定位以实现点云自动拼接,然后以隧道设计中轴线为基准提取隧道横断面,最后结合扫描仪获得的影像数据进行断面收敛、渗水、裂缝等分析。实验表明,采用该检测技术可得到可靠的隧道检测信息,对隧道检测具有一定的实用价值。This paper describes the application of 3D laser scanning technology, which is a new three- dimensional measurement technology, in tunnel inspection. Firstly, the absolute positions of the point cloud for realizing automatic stitching are obtained by total station. Then it extracts tunnel cross-section with designed central axis of the tunnel. At last, it combines the image which is acquired by 3D scanner to analyze deformation of cross-section, seepage, cracks and so on. The experiment demonstrates that the inspection technology can acquire reliable tunnel deformation information, which is of great practical value to tunnel safety inspection.

关 键 词：三维激光扫描 隧道检测 横断面 影像 

分 类 号：P235[天文地球—摄影测量与遥感] U456[天文地球—测绘科学与技术]