Title:
WATERPROOF SHEET CONTINUUM FOR TUNNEL
Document Type and Number:
Japanese Patent JP2019138044
Kind Code:
A
Abstract:
To provide a water proof continuum preventing a large air reservoir from being formed between a permeable sheet member and an impermeable sheet on a top end of a tunnel.SOLUTION: A waterproof sheet continuum 10 is formed by laying a plurality of water proof sheets 11, 12 in a row in a width direction. Each of the water proof sheets 11, 12 includes an impermeable sheet member 20 and a permeable sheet member 30. An impermeable joint margin sheet continuous part 40 and a permeable joint margin sheet continuous part 50 are formed with joint margin sheet parts 25, 35 of end sides in the width direction of these sheet members 20, 30. Further, the impermeable joint margin sheet continuous part 40 and the permeable joint margin sheet continuous part 50 are joined to each other in a dotted, linear, or planar configuration.SELECTED DRAWING: Figure 2
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Inventors:
TAKAHASHI TOSHIAKI
Application Number:
JP2018021698A
Publication Date:
August 22, 2019
Filing Date:
February 09, 2018
Export Citation:
Assignee:
FUJIMORI KOGYO CO
International Classes:
E21D11/38
Domestic Patent References:
| JP2015505919A | 2015-02-26 | |||
| JPS4936715U | 1974-04-01 | |||
| JPS61183632U | 1986-11-15 | |||
| JPH04265399A | 1992-09-21 | |||
| JP2017101450A | 2017-06-08 | |||
| JPS55113556A | 1980-09-02 |
Foreign References:
| US20090126291A1 | 2009-05-21 |
Attorney, Agent or Firm:
Noboru Watanabe
Harada Sanjugi
Tetsumi Aono
Harada Sanjugi
Tetsumi Aono