| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a renewing method for constructing newly installed pipes, by non-cutting method, on the inner peripheral surface of a sewage line constructed under the ground by utilizing the sewage line. SOLUTION: This renewing method for existing buried pipe 5 comprises a step where, based on the investigation of the existing buried pipe 5 for unevenness measured beforehand, a guide pipe 3 is disposed so as to form a planned line shape, and filler is filled into the existing buried pipe 5 to fix the guide pipe 3, a step where cutting means is moved forward along the guide pipe 3 to cut the inner wall surface of the existing buried pipe 5 in order to form an installation space for a newly installed pipe 6, and a process where the newly installed pipe 6 is installed in the space.</p> |
