Japan Geoscience Union Meeting 2023

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Poster

O (Public ) » Public

[O-06] Poster presentations by senior high school students

Sun. May 21, 2023 1:45 PM - 3:15 PM Poster (Exhibition Hall 8, Makuhari Messe)

convener:Tatsuhiko Hara(International Institute of Seismology and Earthquake Engineering, Building Research Institute), Katsuyoshi Michibayashi(Department of Earth and Planetary Sciences, Nagoya University), Miwa Kuri(Japan Meteorological Agency), Keiko Konya(Japan Agency for Marine-Earth Science and Technology)

On-site poster schedule (2023/5/21 13:45-15:15)

1:45 PM - 3:15 PM

[O06-P80] Verification of the effectiveness of biplane-type breakwater as a tsunami countermeasure in submerged conditions

*Mikio Ikeda1 (1. Ichikawagakuen Ichikawa high school)

Keywords:Tsunami Countermeasures, Biplane-type Breakwater


The effectiveness of biplane-type breakwaters as tsunami countermeasures was verified when they are submerged in water, with the aim of reducing the obstruction of the marine landscape by breakwaters and seawalls. Six types of biplane-type breakwaters were made of plaster, and wave height measurements were conducted in a tank. As a result, the probability of wave height decrease was high for the three biplane-type breakwaters above water, but the probability of wave height increase exceeded the probability of wave height decrease for the three biplane-type breakwaters submerged in water. Therefore, it is concluded that submerging biplane-type breakwaters in water is not effective against tsunamis.