S. Nagai


As a new type of vertical-wall breakwater built in soft ground a breakwater, composed of a single row of large steel pipes with diameters of some 1.5 to 3.0 meters driven into a sea bottom, has been proposed for the water areas where are not directly exposed to a great ocean. Experiments for the fundamental study were conducted in the medium wave channel of the hydraulic laboratory in Osaka City University, and model experiments were performed for practical design of the steel pipe breakwater planned to build in the Port of Osaka at a 1/10 scale in the large wave tank in the Field Hydraulic Laboratory.


steel pipe breakwater; breakwater design

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