IMPROVEMENT OF UNDERWATER INSPECTION OF FISHING PORT FACILITIES Study ON APPLICATION OF UNDERWATER 3D SCANNER

Inspection of the underwater part of fishing port facilities is mainly conducted by visual inspection by divers. For this reason, the results of visual inspection tend to vary depending on the skill of the diver and often lack objectivity. In this paper, in order to improve the inspection method of the underwater part, we focused on the underwater 3D scanner that can observe the deformation of the underwater part of the facility in detail, and examined the inspection method using the underwater 3D scanner.The main results are as follows. (1) Movement and scattering of the covering blocks and damage to the steel structure were accurately observed. (2) It was possible to observe near the water surface of the facility where environmental changes were large and deterioration was likely to progress.