UNIT TYPE FLAP GATE

To provide a unit type flap gate capable of reducing labor without removing existing gate poles, gates and the like, as well as allowing its installation to be economically carried out without reconstruction of wing walls and with a little reconstruction and to be easily carried out without requiring partial repair work of an inside of a skeleton.SOLUTION: A unit type flap gate UG is attached inside of a support caisson 18J by adding the support caisson 18J through an adjustment segment 30 on a rear side inflow port 19B of a river of an existing sluice gate caisson 18 of the existing sluice gate 20.SELECTED DRAWING: Figure 2 【課題】既存の門柱、ゲート等の撤去を要することなく、また、翼壁の改築もなく軽微な改築で経済的に設置できるばかりでなく、筐体内部の部分的な修復作業を要することなく簡便に施工することができ労力を削減できるユニット式フラップゲートを提供する。【解決手段】既設樋門２０の既設樋門函体１８川裏側流入口１９Ｂに、調整区間３０を介して支持函体１８Ｊを増設し、この支持函体１８Ｊ内にはユニット式フラップゲートＵＧが取り付けられる。【選択図】図２