Title:
防水シートの敷設工法
Document Type and Number:
Japanese Patent JP7186155
Kind Code:
B2
Abstract:
To provide a method of laying a waterproof sheet in a short time on a trench where pipes, etc., have already been laid and hands cannot enter.SOLUTION: A method of laying a waterproof sheet 7 by crimping the waterproof sheet 7 to both side walls 12A, 12B and the bottom 12C on a trench 1 where piping 2 is installed includes: a step A to temporarily fix the air tube 3 to the pipe 2; a step B to temporarily fix the waterproof sheet 7 to the air tube 3; a step C to apply adhesive to both side walls 12A, 12B and the bottom 12C; a step D to release the temporary fixing of the waterproof sheet 7 and temporarily attach the waterproof sheet 7 to both side walls 12A, 12B and the bottom 12C; and a step E to maintain the internal pressure of the air tube 3 after supplying air to the air tube 3 and expanding the internal pressure to a predetermined value, with the temporary fixing of the air tube 3 released and the air tube 3 placed between the waterproof sheet 7 and the pipe 2.SELECTED DRAWING: Figure 9
Inventors:
Yuji Okiyoshi
Hiroshi Soura
Hiroshi Soura
Application Number:
JP2019180304A
Publication Date:
December 08, 2022
Filing Date:
September 30, 2019
Export Citation:
Assignee:
Mitsuboshi Belting Co., Ltd.
East Japan Railway Company
East Japan Railway Company
International Classes:
E03F5/04; E01C11/04; E01C23/09; E01D19/08; E01D22/00; E04D5/14
Domestic Patent References:
| JP57133949A | ||||
| JP3204748U | ||||
| JP2004285600A | ||||
| JP200737239A |
Attorney, Agent or Firm:
Patent Attorney Corporation ATEN
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