Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
FISHWAY INSTALLED ON RIVERBED
PROBLEM TO BE SOLVED: To provide a highly workable fishway installed on a riverbed that allows a fish and other aquatic lives to ascend even when a water amount is small.SOLUTION: A fishway installed on a riverbed includes: raising parts 3, 4 fixed on a riverbed 6a on a downstream side of a weir 11 at a set interval, with a height increasing gradually in a stepwise state toward the weir 11; a water storage part 2 fixed on the rising parts; and a slope part 5 connected to an outlet 2a of the water storage part 2 tiltably in a vertical direction with a hinge 9, to be spread over the water storage part 2 on the downstream side or landed on the riverbed 6b. A periphery of the hinge 9 at a lower end of the outlet 2a on the downstream side is formed in an R-shape form, for facilitating tilting of the slope part 5 and expanding a range of the tilting.SELECTED DRAWING: Figure 1
【課題】水量が少なくても魚類等の水棲生物の遡上が行え、施工性のよい河床用の魚道を提供する。【解決手段】堰１１より下流側の河床６ａに一定間隔をおいて堰１１に向かい高さが階段状に高くなるように固定状態で設置される嵩上げ部３、４と、該嵩上げ部上に固定される貯水部２と、該貯水部２の流出口２ａにヒンジ９により上下に傾動可能に連結され、下流側の貯水部２に掛けられるか、或いは河床６ｂに着床するスロープ部５より構成され、スロープ部５の傾動を容易にし、かつその範囲を広げるため流出口２ａの下流側下端のヒンジ９の周りはＲ状に形成される。【選択図】図１
FISHWAY INSTALLED ON RIVERBED
PROBLEM TO BE SOLVED: To provide a highly workable fishway installed on a riverbed that allows a fish and other aquatic lives to ascend even when a water amount is small.SOLUTION: A fishway installed on a riverbed includes: raising parts 3, 4 fixed on a riverbed 6a on a downstream side of a weir 11 at a set interval, with a height increasing gradually in a stepwise state toward the weir 11; a water storage part 2 fixed on the rising parts; and a slope part 5 connected to an outlet 2a of the water storage part 2 tiltably in a vertical direction with a hinge 9, to be spread over the water storage part 2 on the downstream side or landed on the riverbed 6b. A periphery of the hinge 9 at a lower end of the outlet 2a on the downstream side is formed in an R-shape form, for facilitating tilting of the slope part 5 and expanding a range of the tilting.SELECTED DRAWING: Figure 1
【課題】水量が少なくても魚類等の水棲生物の遡上が行え、施工性のよい河床用の魚道を提供する。【解決手段】堰１１より下流側の河床６ａに一定間隔をおいて堰１１に向かい高さが階段状に高くなるように固定状態で設置される嵩上げ部３、４と、該嵩上げ部上に固定される貯水部２と、該貯水部２の流出口２ａにヒンジ９により上下に傾動可能に連結され、下流側の貯水部２に掛けられるか、或いは河床６ｂに着床するスロープ部５より構成され、スロープ部５の傾動を容易にし、かつその範囲を広げるため流出口２ａの下流側下端のヒンジ９の周りはＲ状に形成される。【選択図】図１
FISHWAY INSTALLED ON RIVERBED
河床に設置される魚道
TAKEYA YOSHIHISA (Autor:in) / KAWAGUCHI TAKANAO (Autor:in)
15.12.2016
Patent
Elektronische Ressource
Japanisch
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
Ecological Fishway Installed with Arc-Type Baffles
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