2020 Volume 76 Issue 1 Pages 62-78
NEXCO’s lining inspection system is a combination of desktop inspection using lining image recording and recording using lining vehicle imaging technology using traveling vehicles and detailed implementation inspection on site by technicians It consists of. In this study, for the purpose of high precision and advanced use of the lining inspection system, we conducted a trial test on the lining inspection in a real tunnel about the possibility of using the image photography as a substitute of the visual inspection. As a result, it was clarified that although there was a problem of grasping the internal defect, it could be replaced by changing the inspection content according to the number of inspections, excluding the rebar section.
