Title:
既設管更生方法
Document Type and Number:
Japanese Patent JP6956017
Kind Code:
B2
Abstract:
To surely prevent axial elongation and contraction of a regeneration pipe lined on an existing pipe, in an existing pipe regeneration method.SOLUTION: In a regeneration method of an existing pipe 2, following processes are successively executed, that is, a regeneration pipe insertion process for inserting a resin regeneration pipe 3 in a collapsed state to the existing pipe 2, a long member insertion process for inserting a long member 10 along an axial direction of the existing pipe 2, here, the long member is constituted by arranging a plurality of sealing bags 11 in which an adhesive agent 15 (binding material) is sealed, in a longitudinal direction, a process for lining the regeneration pipe 3 on an inner periphery of the existing pipe 2 by expanding a diameter of the regeneration pipe 3, here, the sealing bags 11 rupture so that the adhesive agent 15 is supplied to a clearance between the existing pipe 2 and the regeneration pipe 3, and a sealing process for sealing the whole periphery of a pipe end 2a of the existing pipe 2 and the regeneration pipe 3 by the cut-off material 20.SELECTED DRAWING: Figure 1
Inventors:
Terao Takeshi
Application Number:
JP2018004701A
Publication Date:
October 27, 2021
Filing Date:
January 16, 2018
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
F16L1/00; B29C63/34; E03F3/06; E03F7/00; F16L55/163
Domestic Patent References:
| JP2002018955A | ||||
| JP2004069053A | ||||
| JP8075043A | ||||
| JP2014001785A |
Foreign References:
| US20080047624 |
Attorney, Agent or Firm:
Noboru Watanabe
Harada Sanjugi
Tetsumi Aono
Harada Sanjugi
Tetsumi Aono