河川津波の特性把握に関する実験的検討

概要

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In this study, tsunami run-up experimental model with a scale of 1 to 330 was set up in a tank with 33m length, 30m width and 0.5m height, which reproduces topography around Kitakami River 10 km long with Oppa bay. In the experiments, two types of tsunami were made by tsunami generator and influences of presence of river spit, high-water channel, riverbed roughness, presence of levee breach in some section to tsunami run-up. To recognize these influences, water levels in the river and land area, water volume going up through 10kilometer post of the river were measured during tsunami run-up. It was recognized that presence of river spit, decrease of riverbed roughness make distance of tsunami run-up longer and levee breach sometimes makes the distance shorter.
Japan Society of Civil Engineersの論文