| 摘要 |
<p>A method is proposed for lining a branch pipe (2) from a main pipe (1), wherein a particular sealing mechanism is adopted in attaching the collar (4A) of a liner bag (4) onto the flange (7b) of a fluid pressure sealing nozzle (7). Stopper tacks (18) are embedded in the collar (4A) at appropriate locations, each of the stopper tacks having its bottom end exposed from the back face of the collar and connected with a string (19). The back face of the collar (4A) of the branch pipe liner bag (4) is faced with the upper face of the flange (7b) of the fluid pressure sealing nozzle (7), which further comprises a hollow cylindrical part (7a), the flange (7b) extending perpendicularly from the side of the cylindrical part (7a), and at least one endless sealant (16, 17) is laid on the upper face of the flange (7b). A string puller (11, 12, 13) provided in the flange (7b), and the strings (19) are engaged with the string puller, and the string puller (11, 12, 13) pulls the strings (19) so that the collar (4A) and the flange (7b) are moved toward each other until sufficient sealing effect is obtained. <MATH></p> |
