Developement of Wave Dissipating Caisson with the Function of Water Exchange

A new concept of caisson having the function of water exchange and wawe dissipation is proposed in this paper. This caisson is a kind of a permeable slit caisson with a submerged vertical plate in a water camber. By carrying out the experiment, the following results were obtained;1) The caisson is able to generate one-way flow from outer sea into habor. Consequently, water exchange is enhanced effectively.2) The caisson has a good wave dissipating performance comparing ordinary caissons.In this paper, the design method of the caisson is also presented.