WIRE SUPPORT DEVICE FOR TUNNEL

PROBLEM TO BE SOLVED: To provide a wire support device which can adjust an angle of cant of a wire through displacement in a relatively small longitudinal direction, and is easy to secure insulation separation between a tunnel wall surface and a wire support fitting. SOLUTION: The wire support device 1 for a tunnel includes: a pair of pillar insulators 4 whose upper parts are fixed on the lower surface of a ceiling of the tunnel T; an insulator support board 5 for connecting their lower ends; a wire support board 6 supported on its central upper part through a pedestal 7; and a bolt 7 for fastening the insulator support board 5, the pedestal 7, and the wire support board 6. The insulator 4 is provided at a predetermined mutual interval in an extension direction of the wire. An upper surface of the pedestal 7 is a cylindrical surface 7a whose axial center is parallel to the extension direction of the wire. The wire support board 6 has its center supported on the pedestal 7, is extended right and left, that is, in the extension orthogonal direction of the wire, and supports a rigid body wire 41 under bilaterally-symmetric positions, respectively. The wire support board 6 has a circular concave surface 6a touching a surface of the cylindrical surface 7a of the pedestal 7, and has a bolt hole 6c for piercing a fastening bolt 8 with an allowance. COPYRIGHT: (C)2010,JPO&INPIT