感潮河川流場における空気防波堤の現地実験

抄録

At the Edogawa moterboat racing stadium located at a tidal river channel in Tokyo, moterboat races have sometimes become difficult to open by wind waves during spring gales. A pneumatic breakwater has been planned to be adopted to protect the racing field from the wind waves because it has an advantage of no interruption of common boat navigations through the river channel. However, the breakwater performance of wave damping in the water field where the tidal current exists in addition to the river current is not clear yet.
The present study shows the results of the field test and discusses the applicability of the pneumatic breakwater to tidal rivers. It is found from the data analysis that the pneumatic breakwater in the field with the tidal current maintains almost same performance of wave damping as that without the current.