| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the strip-like member usable for regenerating the straight pipe portion of an existing pipe having a curved part and usable also for regenerating the curved part thereof without reducing the width of a strip sheet member and lowering execution efficiency. SOLUTION: In a spiral pipe forming strip-like member 1 constituted by vertically providing joining parts 12, 14 on the single surfaces of both side edge portions of a strip-like substrate 11 and capable of being formed into a spiral pipe by spirally winding the strip-like substrate 11 so that the other single surface thereof becomes inside to join the mutually adjacent joining part 12, 14, narrow recessed grooves 16 are provided in the single surface of the strip-like substrate 11 along the longitudinal direction thereof and two narrow recessed grooves 17, 17 are provided in the parts on both sides of the narrow recessed groove 16 of the other single surface of the strip-like substrate 11 in the longitudinal direction thereof to make the strip-like substrate 11 freely bendable longitudinally along the narrow recessed grooves 16, 17, 17.</p> |
