TUNNEL LINING FACE INVESTIGATION SYSTEM, AND WHEELED VEHICLE FOR USE IN THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a tunnel lining face investigation system that can, when a wheeled vehicle is traveling in a tunnel, measure the three-dimensional shape of the surface of the tunnel lining face by an optical cutting method using image pickup means mounted on the vehicle and slit laser light projecting means, and thereby accurately determine whether or not any crack found may lead to delamination.SOLUTION: By using the result of three-dimensional shape measurement of one flank of the tunnel lining face accomplished in a state in which image pickup means/slit laser light projecting means installing means are fixed in a first measurement position and the result of three-dimensional shape measurement of the other flank of the tunnel lining face accomplished in a state in which the image pickup means/slit laser light projecting means installing means are fixed in a second measurement position, an investigation object image for use in investigating the tunnel lining face is processed.SELECTED DRAWING: Figure 2