Study on Accuracy Confirmation for LiDAR Application on a Tunnel Face
摘要
The development of a system to monitor the tunnel face is an urgent issue because of the problem of occupational accidents caused by “rock fall,” i.e., the collapse of rock and sand near the tunnel face immediately after excavation. In this study, we aim to prevent damage caused by rock fall by acquiring information on the tunnel face using various sensors and evaluating the risk of rock fall based on this information. We focused on the overhang of the rock and tried to identify the overhang area using photogrammetry and a 3D sensor equipped with LiDAR.