| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a lining pipe capable of being minimized in bending strain in a deformed state, generating no crack or the like, capable of being easily introduced into an existing pipeline from an manhole at the time of winding around a drum or execution and capable of sufficiently ensuring a steam passage at the time of restoration of a shape to perform uniform and sufficient heating. SOLUTION: The lining pipe is formed from a thermoplastic resin and characterized by that the whole cross-sectional outer shape thereof is reduced in such a state that capacity restoring the shape of a cylindrical pipe is imparted at a shape memory temperature and the cross-sectional shape thereof has a plurality of loop-shaped folded back parts 12, 13 and 14 and is deformed so that the loop-shaped folded-back parts are arranged asymmetrically.</p> |
