Read : Furusyu Bodhi
Also known as kekshaban, kekshaban, kakushaban, kakushaban, kakushaban (sometimes written in hiragana because the "sha" is difficult to read), ryukai gate.
English: flashboard
Flushboards are small gates used to channel driftwood, debris, and other floating debris from the top of the gate downstream from the reservoir. It may be installed on top of the flood discharge gate, or it may be installed alone.
There are several ways to write 寫寫板, 欠寫寫板, 決瀉板, 欠瀉瀉板, and so on, even though the readings are the same. The Chinese characters "決" and "寫" mean "overflowing" and "pouring out," respectively, and "瀉" also means "to flow out" or "to spit out," and it is thought that these characters were used for this purpose. The character for "欠" (欠) may have been used because it gives the image of a missing part of a gate.
Since laws and the environment have changed and driftwood and trash can no longer be discharged downstream, there are few cases of their use today.
Flashboard of Tainai No. 2 Dam
Notch-like area at the top of the roller gate.
Kurose Dam flash board
Upper part of the radial gate on the left side facing you.
Flashboard of Komino Dam
The top of the radial gate in the center of the photo (third from the left as you face it).
Flash board at Shinaki Dam
A hydraulic cylinder flush board is attached to the top of the girder structure roller gate on the right bank side.
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