Title:
管路補修構造及び管路補修方法
Document Type and Number:
Japanese Patent JP6770814
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pipeline repairing structure and a pipeline repairing method which, in a pipeline repairing structure having a regeneration pipe installed inside an existing pipe, can prevent ground water and sand from flowing between the existing pipe and the regeneration pipe.SOLUTION: Provided is a pipeline repairing structure having inside of an existing pipe 100 covered with a regeneration pipe 102. A non-covered region 100a, which is not covered with the repairing pipe 102, is arranged at an end part of the existing pipe 100. The pipeline repairing structure includes a cylindrical elastic member 10 that covers a boundary between the non-covered region 100a and the repairing pipe 102 over both thereof from inside and a cylindrical rigid member 20 that presses the cylindrical elastic member 10 from inside. On an outer peripheral surface of the cylindrical elastic member 10 are formed projecting parts 14-1 and 14-2 that protrude outward in a radial direction, where the protruding parts 14-1 adheres to whole circumference of the non-covered region 100a of the existing pipe and the protruding parts 14-2 adheres to the inside of the regeneration pipe 102.SELECTED DRAWING: Figure 7
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Inventors:
Shinkichi Ooka
Tsune Kitajima
Zhang Manra
Tsune Kitajima
Zhang Manra
Application Number:
JP2016059795A
Publication Date:
October 21, 2020
Filing Date:
March 24, 2016
Export Citation:
Assignee:
Yoshika Engineering Co., Ltd.
International Classes:
B29C63/34; F16L1/00; F16L55/163; F16L55/18
Domestic Patent References:
| JP2014076592A | ||||
| JP2015175449A | ||||
| JP9123277A | ||||
| JP2014161978A | ||||
| JP3265798A |
Attorney, Agent or Firm:
Satoshi Eto