DEVICE FOR GRINDING TUNNEL

摘要

PURPOSE: A device for grinding a tunnel is provided to grind the inner wall surface of the tunnel to finish the inner wall surface of the tunnel while traveling in the tunnel. CONSTITUTION: A device for grinding a tunnel includes a traveling body(1) traveling on the floor surface of the tunnel; a boom(10) installed to the traveling body movably up and down; a grinding unit(20) installed to the boom to grind the inner wall surface of the tunnel; and a turning unit(30) moving the grinding unit along the circumferential direction of the inner wall surface of the tunnel. The device for grinding the tunnel further includes a height control unit so that the grinding unit maintains contact with the inner wall surface of the tunnel.