东南大学学报（自然科学版）Issue(z2)：246-249,4.DOI:10.3969/j.issn.1001-0505.2013.S2.006
基于地面三维激光扫描技术的隧道安全监测
Tunnel safety monitoring based on terrestrial laser scanning technology
摘要
Abstract
The subway tunnel is selected as the research object, and a part of the tunnel is scanned by 3D terrestrial laser scanning technology to obtain the 3D point cloud data of the researched tun-nel.A novel point cloud data registration method based on geometrical feature points and the ICP( iterative closest point ) algorithm is used to register scans from multiple positions.After denoising and simplification, the registered point cloud data is modeled based on the method of NURBS( non-uniform rational B-spline) surface.By overlaying two-periodic point cloud data, the whole displace-ment of the tunnel's vertical and horizontal sections can be obtained.The experimental results show that 3D terrestrial laser scanning technology can obtain accurate and omni-directional subway tunnel spatial data, so it is a supplement to the current tunnel safety monitoring methods.关键词
隧道安全监测/地面三维激光扫描/点云数据配准/点云数据建模Key words
tunnel safety monitoring/3D terrestrial laser scanning/point cloud data registration/point cloud data modeling分类
天文与地球科学引用本文复制引用
史玉峰,张俊,张迎亚..基于地面三维激光扫描技术的隧道安全监测[J].东南大学学报（自然科学版）,2013,(z2):246-249,4.基金项目
江苏高校优势学科建设工程资助项目（PAPD）、住房和城乡建设部科学技术资助项目（2010-K9-19）． （）
