A 3D laser scanning mountain tunnel processing method based on ICP algorithm

• Main Authors: Han, Zhao, Wang, Yicheng, Xie, Xiongyao, Li, Peifeng, Tang, Genji
• Format: Conference Proceeding
• Language: English
• Published: SPIE 23.01.2024
• ISBN: 9781510672741; 1510672745
• ISSN: 0277-786X
• DOI: 10.1117/12.3020850

This article introduces three-dimensional laser scanning technology for monitoring in the application field of mountain tunnels, and proposes a full cycle deformation point cloud processing method ICP algorithm for mountain tunnels. Firstly, the tunnel point cloud is cut into a single circular point cloud. After denoising the point cloud, the ICP algorithm is used to accurately register the two phase point clouds. After registration, the corresponding original point cloud and target point cloud with the closest and farthest Euclidean distance are calculated, which are the maximum deformation points. At the same time, after registration, the deformation settlement at the top of the tunnel can be obtained by calculating the highest point deformation. Leica Scanstation C10 is used to obtain the data of Qinghe project mountain tunnel, which proves that the method proposed in this paper has practical significance in tunnel section Deformation monitoring.