| 摘要 |
PROBLEM TO BE SOLVED: To prevent defects, or the like, from being generated in a coating layer by rolling a corrosion protective coating layer of a pipe end joining part while a steel pipe is jacked in installing the steel pipe where the corrosion protective coating layer is formed on an outer surface of a tubular body by the pipe jacking method. SOLUTION: Steel pipes where corrosion protective coating layers 2, 2' with polyolefin resin are formed on an outer surface of tubular bodies 1, 1' are butted and joined with each other. A special polyolefin adhesive 7 is applied to the outer surface of the corrosion protective coating layers 2, 2' at a joint part 3 where no corrosion protective coating layers are formed, and then, a polyurea resin is coated thereon to form a coating layer 6 with the polyurea resin. |
