Abstract
In coastal construction, we have developed a wave absorbing breakwater using buttress in order to secure a desired work space with reduced wave height and secure a stage of heavy machinery etc. to be used for the work space on the sea. It is an earth retaining structure that buried a buttress which is an L-Type wall structure in the rubble mound breakwater, and stabilized against sliding and overturning by the weight and frictional resistance of the rubble stone. In order to contribute to the design of this wave absorbing breakwater using buttress, a hydraulic model test was carried out.
As a result, we clarified the estimation method of the wave force and the wave overtopping rate.