| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for support of a cable on a wall face in a tunnel, which reliably keeps an initial supporting state of the cable. SOLUTION: A bracket 3 is projected, being attached detachably to the front plate 1a of a supporting frame 1 attached on the wall face w in the tunnel, and the bracket 3 bears a cable c, and both sides of a spiral rod 7, the middle of which is locked to the under edge of the bracket 3, are wound around the cable c, while its inner rim is under pressure contact. COPYRIGHT: (C)2010,JPO&INPIT |
