| 摘要 |
<p>PURPOSE:To prevent the damage of a resin pipe due to a crash with a shielding main girder at a time when the resin pipe is transported to the position of installation through the inside of a shield made of steel when the resin pipe is used as secondary lining in the shield made of steel. CONSTITUTION:Flat steel 4 stretched along the direction of carrying of a resin pipe 2 and welded and fixed is utilized as a guide for preventing a crash in a shielding main girder 5 at a position corresponding to the central height of the resin pipe 2 as a secondary lining pipe material transported in a shield 1 made of steel by a track 3. The pipe end of the resion pipe 2 is slid while using the surface of the flat steel 4 as a guide when the pipe end approaches to the shielding main girder 5, thus preventing the crash. Since transportable volume is increased, the more long-sized resin pipe 2 having a larger aperture can be carried.</p> |
