2024-03-28T14:30:58Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02005377
2022-10-31T02:40:09Z
1642837622505:1642837855274:1642837875711
1642838403551:1642838406845
護岸上を越波する段波の反射率と波力に関する研究 -サーフビートなど長周期波の反射率と波力の算定式-
Forces and Reflections of Long period Waves Overtopping Sea Walls
仲座, 栄三
津嘉山, 正光
牧野, 敏明
北村, 康司
川満, 章秀
坂本, 哲史
Nakaza, Eizo
Tsukayama, Seikoh
Makino, Tosiaki
Kitamura, Yasushi
Kawamitu, Akihide
Sakamoto, Tetushi
open access
Wave Force
Wave Reflection
Tsunami
Surf Beat
Wave Overtopping
Coral Reef Coast
Sea walls are usually designed only for protection against storm waves, with no account being taken of the effect of long waves, e.g. Tsunamis or Bore-like surf beats. The estimation of the effectiveness of sea walls as protection against long waves is very important in the field of coastal countermeasures, particularly on coral reef coasts, where long waves can cause abnormally high rises in water levels. The establishment of estimation methods for wave forces, i.e. summing up the effect of long and short wave forces, has a special significance for coastal engineers working on reef coasts. There is as yet no formula for the estimation of either the force or reflection of strong non-linear long waves. In this study, we offer empirical calculation formulae for wave forces and wave reflections. The wave force formula has been derived from hydrostatic wave pressure, whilst the wave reflection coefficient was derived from the energy flux conservation rule.
紀要論文
琉球大学工学部
1999-09
jpn
departmental bulletin paper
VoR
http://hdl.handle.net/20.500.12000/15827
http://hdl.handle.net/20.500.12000/15827
https://u-ryukyu.repo.nii.ac.jp/records/2005377
0389-102X
AN0025048X
琉球大学工学部紀要
58
35
40
https://u-ryukyu.repo.nii.ac.jp/record/2005377/files/No58p035.pdf