A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FLAP GATE FOR TSUNAMI AND STORM SURGE
To provide a flap gate for tsunami and storm surge that holds the fully opened state normally and that can close the opening of a sluice gate automatically when an earthquake with a predetermined seismic intensity or greater occurs.SOLUTION: The flap gate for tsunami and storm surge includes a door body 3 that is swingable about a door body support pivot 22 and that is supported by a balance weight closing an opening 11 or opening it slightly, a hydraulic cylinder 4 opening and closing the door body 3, earthquake detection means 5 for detecting the occurrence of an earthquake with a predetermined seismic intensity or greater, and hydraulic control means 6 for controlling the pressure of hydraulic fluid supplied to the hydraulic cylinder 4. The hydraulic control means 6 normally controls the pressure of the hydraulic fluid supplied to the hydraulic cylinder 4 to hold the door body 3 in the fully opened state, and automatically opens a conduit 64 supplying the hydraulic fluid to the hydraulic cylinder 4, releases oil pressure on the hydraulic cylinder 4, and makes the door body 3 in the closed state using the balance weight when the earthquake detection means 5 detects an earthquake with a predetermined seismic intensity or greater.SELECTED DRAWING: Figure 1
【課題】 通常時には全開状態を保持するとともに、所定の震度以上の地震が発生した場合には自動的に水門の開口部を閉鎖することができる、津波用および高潮用フラップゲートを提供する。【解決手段】 扉体支持軸２２周りに揺動自在でかつ開口部１１を閉鎖または僅かに開口する重量バランスにて支持されている扉体３と、扉体３を開閉させる油圧シリンダー４と、所定の震度以上の地震の発生を検出する地震検出手段５と、油圧シリンダー４に供給される作動油の油圧を制御する油圧制御手段６とを有しており、油圧制御手段６は、通常時に油圧シリンダー４に供給される作動油の油圧を制御して扉体３を全開状態に保持するとともに、地震検出手段５が所定の震度以上の地震を検出した場合に油圧シリンダー４に作動油を供給する配管路６４を自動的に開放して油圧シリンダー４にかかる油圧を解除し、扉体３を重量バランスによって閉鎖状態にさせる。【選択図】 図１
FLAP GATE FOR TSUNAMI AND STORM SURGE
To provide a flap gate for tsunami and storm surge that holds the fully opened state normally and that can close the opening of a sluice gate automatically when an earthquake with a predetermined seismic intensity or greater occurs.SOLUTION: The flap gate for tsunami and storm surge includes a door body 3 that is swingable about a door body support pivot 22 and that is supported by a balance weight closing an opening 11 or opening it slightly, a hydraulic cylinder 4 opening and closing the door body 3, earthquake detection means 5 for detecting the occurrence of an earthquake with a predetermined seismic intensity or greater, and hydraulic control means 6 for controlling the pressure of hydraulic fluid supplied to the hydraulic cylinder 4. The hydraulic control means 6 normally controls the pressure of the hydraulic fluid supplied to the hydraulic cylinder 4 to hold the door body 3 in the fully opened state, and automatically opens a conduit 64 supplying the hydraulic fluid to the hydraulic cylinder 4, releases oil pressure on the hydraulic cylinder 4, and makes the door body 3 in the closed state using the balance weight when the earthquake detection means 5 detects an earthquake with a predetermined seismic intensity or greater.SELECTED DRAWING: Figure 1
【課題】 通常時には全開状態を保持するとともに、所定の震度以上の地震が発生した場合には自動的に水門の開口部を閉鎖することができる、津波用および高潮用フラップゲートを提供する。【解決手段】 扉体支持軸２２周りに揺動自在でかつ開口部１１を閉鎖または僅かに開口する重量バランスにて支持されている扉体３と、扉体３を開閉させる油圧シリンダー４と、所定の震度以上の地震の発生を検出する地震検出手段５と、油圧シリンダー４に供給される作動油の油圧を制御する油圧制御手段６とを有しており、油圧制御手段６は、通常時に油圧シリンダー４に供給される作動油の油圧を制御して扉体３を全開状態に保持するとともに、地震検出手段５が所定の震度以上の地震を検出した場合に油圧シリンダー４に作動油を供給する配管路６４を自動的に開放して油圧シリンダー４にかかる油圧を解除し、扉体３を重量バランスによって閉鎖状態にさせる。【選択図】 図１
FLAP GATE FOR TSUNAMI AND STORM SURGE
津波用および高潮用フラップゲート
TAKAHASHI MINORU (author) / ONODERA TETSUO (author)
2019-02-21
Patent
Electronic Resource
Japanese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
Hydraulic characteristics of flap gate for storm surge and tsunami barrier
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| Engineering Index Backfile | 1967
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