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Title:
FOLDED WATERPROOF SHEET, AND FITTING METHOD FOR WATERPROOF SHEET
Document Type and Number:
Japanese Patent JP2016069862
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To enhance workability and reduce costs when fitting a waterproof sheet on an inner peripheral part of an adit.SOLUTION: A waterproof sheet 1 is fitted on an inner periphery of an excavated adit. The waterproof sheet 1 is rectangular, and a first direction X of two directions toward which the waterproof sheet extends coincides with the excavation direction of the adit. The waterproof sheet 1 is folded such that a plurality of first folding lines 11, 12 is positioned repeatedly at one edge side and the other edge side in the first direction X, the folding lines being orthogonal to the first direction X and parallel to each other, and one surface and the other surface of the waterproof sheet 1 appear alternately. The folded waterproof sheet 1 extends when pulled in the first direction X at an end 10 in the first direction X, for solving the problem.SELECTED DRAWING: Figure 2

Inventors:
TAKAHASHI TOSHIAKI
TAKANAMI MASAMITSU
Application Number:
JP2014198579A
Publication Date:
May 09, 2016
Filing Date:
September 29, 2014
Export Citation:
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Assignee:
FUJIMORI KOGYO CO
International Classes:
E21D11/38
Domestic Patent References:
JPH05163804A1993-06-29
JP2001037353A2001-02-13
JP2011196087A2011-10-06
JPH11117691A1999-04-27
JPH08170498A1996-07-02
Foreign References:
US20020175432A12002-11-28
Other References:
横澤圭一郎 他: "防水工に関する研究", 建設の施工企画, JPN7018002170, April 2011 (2011-04-01), pages 74 - 77, ISSN: 0003964722
鈴木健之 他: "防水シートに関する研究", 土木学会第66回年次学術講演会, JPN6018024195, 2011, pages 855 - 856, ISSN: 0003825855
Attorney, Agent or Firm:
Shunichi Yoshimura



 
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