No abstract

No abstract

No abstract

The estimation method of tsunami wave force acting on a land structure using hydraulic quantities around the structure was newly proposed in this study. Hydraulic experiments were conducted to estimate tsunami wave force acting on the structure. A 2D depth-integrated flow simulation under the installation of a land structure was carried out to examine runup tsunami deformation. Even though the maximum wave force due to the initial impact of the leading edge on the structure cannot be reproduced by the proposed method, the method could reasonably estimate the tsunami wave force. Tsunami wave forces calculated by CADMAS-SURF/3D were in good agreement with the experimental results on the wave condition that cannot be reproduced by the evaluation method using the 2D simulation results.

正会員 博（工） 関西電力株式会社 電力技術研究所（〒661-0974 兵庫県尼崎市若王寺3-11-20）2 正会員 工修 関西電力株式会社 電力技術研究所（〒661-0974 兵庫県尼崎市若王寺3-11-20） 3 正会員 博（工）名古屋大学准教授 大学院工学研究科 社会基盤工学専攻 （〒464-8601 名古屋市千種区不老町C1-3(651)） Hydraulic experiments were conducted to estimate tsunami wave pressure acting on a land structure and examine the influence of a seawall on tsunami inundation, velocity and wave pressure. Although inundation depth behind a low seawall became smaller than that without a seawall, velocity was increased. The existing hydrostatic formula tended to underestimate tsunami wave pressure on the condition of low seawall. For applying reduced parameter based on effect of reducing tsunami intensity by seawall, it is necessary to use inundation depth without seawall. Estimation method of tsunami wave pressure using inundation depth and horizontal velocity at the front of the structure could reproduce vertical distribution of the maximum tsunami wave pressure measured in the experiments.