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Title:
IMPERVIOUS SHEET AND IMPERVIOUS STRUCTURE
Document Type and Number:
Japanese Patent JP3895581
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide an impervious sheet having a structure that a stress generated by a traveling of a heavy machinery, etc., is relaxed and preventing a damage of the sheet caused by a concentration of the stress and a water- shielding structure using the water-shielding sheet.
SOLUTION: The impervious sheet 6 is used for the impervious structure established along a recessed part of a ground 1. An impervious sheet provided with an expandable/shrinkable expansion/shrinkage part provided at a predetermined interval is used.


Inventors:
Hiroaki Hiraoka
Keiichi Miyazaki
Tsutomu Tanaka
Yukio Sakai
Shigeru Miki
Application Number:
JP2001336082A
Publication Date:
March 22, 2007
Filing Date:
November 01, 2001
Export Citation:
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Assignee:
Nishimatsu Construction Co., Ltd.
Foundation Ground Consultants Co., Ltd.
International Classes:
B09B1/00; (IPC1-7): B09B1/00
Domestic Patent References:
JP4044512A
JP3033312A
JP3075999U
JP2001252634A
JP7031337U
JP7033631U
Attorney, Agent or Firm:
Shinya Mayama