| 摘要 |
<p>PROBLEM TO BE SOLVED: To make any local deformation of buckling or the like due to the quake and ground uneven settlement of an existing pipe so as to be preventable without stopping a supply of gas or the like. SOLUTION: A pipe joint structure 1 is integrally constituted by a split type corrugated pipe joint 2 and a split type live pipe joint 3, and it is assembled by two split type corrugated pipe joints 2a, 2b and split type live pipe joints 3a and 3b being halved respectively. One end of each of these pipe joints 3a and 3b is connected to the split type corrugated pipe joints 2a and 2b on an outer surface of the end of a straight pipe part of an existing pipe 7b, and the other end is directly attached to the end outer surface of this straight pipe part of the existing pipe 7a by means of welding. The straight pipe of the existing pipe 7 is parted into the existing pipe 7a and the existing pipe 7b at the inside of the split type live pipe joint 3. Displacement due to an earthquake or the like is absorbed by the split type corrugated pipe joint 2.</p> |
