Title:
EXISTING PIPE REGENERATION METHOD, SEALING RECEIVER FRAME AND SEALING RECEIVER MEMBER
Document Type and Number:
Japanese Patent JP2018185039
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an existing pipe regeneration method capable of reducing a construction cost, and preventing a back-filling material from entering a regeneration pipe from a communication port in back-filling, without hindering various kinds of work.SOLUTION: A regeneration pipe 3 is inserted into an existing pipe 1 along an inner wall of the existing pipe 1. Before a connection port correspondence position 3p corresponding to a connection port 2b in the regeneration pipe 3 is inserted into the existing pipe 1, at the connection port correspondence position 3p a communication port 3b is bored. In the regeneration pipe 3 an annular sealing receiver frame 5 is installed along a circumferential direction of an inner peripheral surface of the regeneration pipe 3. A sealing material 5p received by a sealing receiver member 5c of the sealing receiver frame 5 is sealed so as to straddle from the connection port 2b to the communication port 3b. In a sealed state, an in-pipe interval 1g between an inner periphery of the existing pipe 1 and an outer periphery of the regeneration pipe 3 is filled with a back-filling material a.SELECTED DRAWING: Figure 1
Inventors:
KUBO YOSHIHISA
Application Number:
JP2018033405A
Publication Date:
November 22, 2018
Filing Date:
February 27, 2018
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
F16L1/00; B29C63/32; E03F3/06
Attorney, Agent or Firm:
Noboru Watanabe
Harada Sanjugi
Tetsumi Aono
Harada Sanjugi
Tetsumi Aono