Title:
PERMEABLE WEIR FOR CAPTURING DRIFTWOOD
Document Type and Number:
Japanese Patent JP2023026836
Kind Code:
A
Abstract:
To provide a permeable weir for capturing driftwood for capturing mainly large driftwood in an upstream area of a mountainous area.SOLUTION: This invention discloses a protective weir with a screen made of a wire net stretched across left and right banks of a valley among mountains to allow debris flows including small gravels to pass through during a flood and trap and dam driftwood. A passage space is provided on a stream bed near at least the lower end of the screen to allow flow of rocks including boulders in the debris flow. The passage space is provided between the side edge of the screen and the banks to allow the flow of rocks including boulders in the debris flow, and the screens are installed in multiple stages in the direction of the debris flow at predetermined intervals in the valley.SELECTED DRAWING: Figure 1
Inventors:
SEZAKI SHIGERU
Application Number:
JP2021132232A
Publication Date:
March 01, 2023
Filing Date:
August 16, 2021
Export Citation:
Assignee:
SHAMEN TAISAKU KENKYUSHO KK
International Classes:
E02B5/08; E02B7/02
Attorney, Agent or Firm:
Kono Makoto
Ikugo Kono
Ikugo Kono
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