| 摘要 |
<p>PURPOSE:To make it possible to build pipe bodies in a curved shape by using only one hooking ring provided between the ends of the pipe bodies, to enable material cost of the hooking ring to reduce and, at the same time, to reduce manhours and construction costs. CONSTITUTION:Cushion members 3 and holding-up plates 4 and an opening adjusting member 8 are made to lie between pipe bodies 1, and the pipe bodies 1 used for a jacking method building a plurality of pipe bodies 1 in a curved shape are provided. The cushion members 3 and holding-up members 4 are contacted with the end of one side and a bolt hole 2a is formed for bearing them. A bolt 5 screwed into the bolt hole 2a is used to contact the cushion members 3 and holding-up members 4 with the end of one side of the pipe bodies 1. A hooking ring 7 is provided to the end of the other side of the pipe bodies 1, and the cushion members 3 and holding-up members 4 are mounted to the hooking ring 7.</p> |
