Application of all-terrain CCTV detection and 3D laser scanning technology in investigation of drainage culverts
To identify structural and functional defects inside drainage culverts,sewage mixing,section size,box culvert boundary,and top and bottom elevation and accurately locate spatial information,this paper applied all-terrain closed circuit television (CCTV) detection and three-dimensional (3D) laser scanning technology in the investigation of special hidden culvert sections. As a result,it solved the problem that conventional CCTV detection failed to accurately locate and measure the culvert,improved the efficiency and quality of drainage culvert detection,provided rich models,images,drawings,and data for design and renovation,reduced design party changes caused by insufficient investigation accuracy,and saved project costs.
drainage culvert investigationall-terrain closed circuit television (CCTV) detection technologythree-dimensional (3D) laser scanning technologypoint cloud processingdetection and evaluation