Effect of Wave-Dissipating Works on Wave Force Reduction of Tsunami with Soliton Fission

Abstract

A series of hydraulic model experiments was performed to clarify the effect of Wave-Dissipating works on wave force reduction of tsunami with soliton fission. First, under the conditions of a wide range of water depth and wave period, the process of tsunami deformation was examined to understand the characteristics of tsunami profiles at the soliton fission including the relation between degree of dispersion and travel distance. Then, the relationship between the pressure of the soliton waves acting on the vertical wall and the degree of dispersion was studied. Finally, the effect of wave-dissipating works on wave force reduction of tsunami was investigated by comparing the wave pressures on a caisson with and without the works under the condition of breaking and non-breaking soliton wave.

Estimation of Tsunami Force Acting on the Block Armored Breakwater Due to Soliton Fission

“…For this reason, establishment of a design method for block armored breakwaters against tsunami is an urgent issue. As a result, Maruyama et al (2015) conducted hydraulic model experiments on the tsunami wave force acting on the block armored breakwater. However, since their research aimed to clarify the fundamental characteristics of the tsunami wave with soliton fission, methods for calculating wave forces available for practical design work have not been proposed.…”