抄録
The flap type gate against storm surge and tsunami has many superior points in comparing with existing coastal structures for prevention of disasters. However, the flap gate has the problem that the gate itself sways because of waves from the open sea and generates waves into a harbor. In this study, a new flap type gate was designed, and the wave transmission characteristics on a new gate were investigated through a two-dimensional hydraulic experiment with the model of scale 1/35. The obtained results indicated that the transmission waves due to sway of the gate were reduced.
