Its construction equipment and lining construction method of the tube within culvert with simultaneous injection of backfill material

摘要

In the sewer P, the lining pipe R formed by spirally winding the band-shaped member 500 formed of a long plate-like body is left, and a new lining pipe is additionally formed in front of the remaining lining pipe. In the lining work to be performed, a lining work apparatus S having a bending frame 1 made of a link body and using a flexible frame 1 is used. In addition, the lining tube R is formed while being forcedly folded inward by utilizing the flexibility of the molding frame 1, and at the same time, a backfill material is injected into the folded portion. The folding part then returns to its original state. Alternatively, the small-diameter lining pipe R wound and formed around the molding frames 201 and 401 is expanded, and in the process of expanding the diameter, a backfill material is injected and lined. By this lining work, the lining pipe R is formed to fill the cross section of the sewer P, and at the same time, the back lining work can be performed on the long lining pipe R.