| 摘要 |
PROBLEM TO BE SOLVED: To provide a reinforcement support fitting, by which waterproofness and the support function of a reinforcement are ensured sufficiently, cost of which is reduced and workability of which is improved, in the reinforcement support fitting used at the time of the execution of an underground structure such as a tunnel. SOLUTION: The reinforcement support fitting for executing the underground structure consists of a base metal fitting 10, in which opposed U-shaped sectional retaining sections 12 are formed bending both side ends of a vertical substrate 11, and a hinge-shaped retaining section 20 with a pair of left-right hinge pieces 21, 22 capable of being retained to the retaining sections, and at least one of control levers 24 for opening and closing hinges is projected detachably from the fronts of each hinge piece in the reinforcement support fitting. When a part of a waterproof sheet is bitten into the interior section of the base metal fitting 10, the hinge pieces are brought to a bent state, and fitted into the retaining sections of the base metal fitting and a hooked holder 27 is rotate and fastened to the supporter 26 of another control lever at that time, the waterproof sheet is fixed without requiring boring.
|
