JPS6430731A - Engineering method for lining pipeline - Google Patents

Engineering method for lining pipeline

Info

Publication number
JPS6430731A
JPS6430731A JP62188198A JP18819887A JPS6430731A JP S6430731 A JPS6430731 A JP S6430731A JP 62188198 A JP62188198 A JP 62188198A JP 18819887 A JP18819887 A JP 18819887A JP S6430731 A JPS6430731 A JP S6430731A
Authority
JP
Japan
Prior art keywords
pipeline
pipe
lining
plastic pipe
expanded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62188198A
Other languages
Japanese (ja)
Other versions
JPH0556255B2 (en
Inventor
Namio Imoto
Toshihiko Kikuchi
Akishi Kegasa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osaka Gas Co Ltd
Original Assignee
Osaka Gas Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osaka Gas Co Ltd filed Critical Osaka Gas Co Ltd
Priority to JP62188198A priority Critical patent/JPS6430731A/en
Priority to EP88900579A priority patent/EP0298125B1/en
Priority to PCT/JP1987/001027 priority patent/WO1988004987A1/en
Priority to KR1019880701038A priority patent/KR950013717B1/en
Priority to DE88900579T priority patent/DE3784926T2/en
Priority to US07/251,650 priority patent/US4950446A/en
Publication of JPS6430731A publication Critical patent/JPS6430731A/en
Publication of JPH0556255B2 publication Critical patent/JPH0556255B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To compensatingly absorb the difference between the linear expansions of pipeline and of lining and prevent buckling from occurring in the lining and at the same time make it possible to realize the favorable lining at the early stage of the execution by a method wherein a small bore thermoplastic pipe is inserted in a pipeline and heated so as to change the rate of expansion in radial direction alternately and in magnitude in order to cover the plastic pipe wavily onto the inner surface of the pipeline by pressurizing. CONSTITUTION:A plastic pipe 1, the bore of which is smaller than that of a pipeline (a), is inserted in the pipeline (a) and the outer diameter of the pipe 1 is preparatorily expanded at its basic end side to be nearly equal to the inner diameter of the pipeline (a). A heating pig 2, which incorporates an electric heater 2a and is installed in a diametrically expanded part 1a, is conical, for example, and has the maximum outer diameter, which is slightly smaller than the inner diameter of the pipeline, and is equipped with a traction rope on its top side and connecting cords 4 at its basic end side. Further, the plastic pipe 1, which is inserted in the pipeline (a), is internally heated through the travelling of the heating pig 2 in the pipe and at the same time internally pressed by the compressed air fed through a feeding port 7a in the pipe so as to be expanded radially in order to cover the inner surface of the pipeline (a).
JP62188198A 1986-12-26 1987-07-27 Engineering method for lining pipeline Granted JPS6430731A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP62188198A JPS6430731A (en) 1987-07-27 1987-07-27 Engineering method for lining pipeline
EP88900579A EP0298125B1 (en) 1986-12-26 1987-12-24 Duct lining method
PCT/JP1987/001027 WO1988004987A1 (en) 1986-12-26 1987-12-24 Duct lining method
KR1019880701038A KR950013717B1 (en) 1986-12-26 1987-12-24 Internal lining method of pipe
DE88900579T DE3784926T2 (en) 1986-12-26 1987-12-24 COATING METHOD FOR LINES.
US07/251,650 US4950446A (en) 1986-12-26 1987-12-24 Method of lining pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62188198A JPS6430731A (en) 1987-07-27 1987-07-27 Engineering method for lining pipeline

Publications (2)

Publication Number Publication Date
JPS6430731A true JPS6430731A (en) 1989-02-01
JPH0556255B2 JPH0556255B2 (en) 1993-08-19

Family

ID=16219487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62188198A Granted JPS6430731A (en) 1986-12-26 1987-07-27 Engineering method for lining pipeline

Country Status (1)

Country Link
JP (1) JPS6430731A (en)

Also Published As

Publication number Publication date
JPH0556255B2 (en) 1993-08-19

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