CONDUIT LINE RECOVERY METHOD

摘要

PROBLEM TO BE SOLVED: To reduce installation costs by unnecessitating factory producing structural members of a recovery pipe 32 and ensure efficient work execution without producing wasteful material. SOLUTION: A recover device 12 containing a pusher 16 is carried into a conduit line 10 when recovering the conduit line 10. A preset-size recovery pipe 32 being continuously pushed by the pusher 16 is pushed against and adhered to the inner face of the conduit line 10, and the recovery pipe 32 is cooled to be hardened.