TUNNEL LINING INVESTIGATION SYSTEM AND VEHICLE USED FOR THE SAME

摘要

It is possible to examine the soundness (degree of deterioration) of the tunnel every span. In a state in which the photographing means is fixed to the first photographing position, a first image indicating one side of one side of both sides of the tunnel reclaimed surface photographed by the photographing means, And a second image representing one side of the other of the two sides of the tunnel recoil surface photographed by the means is brought into contact with a portion of the tunnel recoil surface in the same span, And synthesized into an image representing both sides.