| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent generation of vibration when a fluid flows down at the inside by constituting a jig for fixing vertical pipe for fixing a vertical pipe within a manhole by a plurality of suspension seats provided projectingly in the horizontal direction from an inner wall of the manhole and a supporting beam freely movable in only the projectingly providing directions of the suspension seats between the two suspension seats of the same height. SOLUTION: When a vertical pipe 5 in which a spiral guide part is formed at the inside to reduce drop and impact of sewage is installed within a manhole, a jig for fixing vertical pipe constituted of a plurality of suspension seats 1 which are projectingly provided in the horizontal direction from an inner wall of the manhole and a supporting beam 2 arranged between the two suspension seats 1, 1 of the same height is used. When the supporting beam 2 is disposed on the two suspension seats 1, 1 of the same height, a joining part is fixed with a bolt and the supporting beam 2 is provided so as to be freely movable along oblong holes of the horizontal direction formed on the suspension seats 1. Each suspension seat 1 is fixed to the inner wall of the manhole with the bolt and the vertical pipe 5 is fixed by a U-type fastening ring 6 which is put on the semicircle and is tightened on the suspension seats 1 at both end parts.</p> |
