樋門ゲートに対する河川津波波力減勢工の提案とその効果について
キーワード:
Tsunami in Rivers,
Sluice Gate,
River-Tsunami Absorbing Pile,
Numerical Simulation,
Particle Method
2013 年 19 巻 p. 381-386
詳細
2013 年 19 巻 p. 381-386
This report presents a proposal of tsunami absorbing pile for a sluice gate. The tsunami generated by the 2011 Tohoku Pacific-Coast Earthquake intruded ten Class-1 Rivers in Hokkaido, Japan. Videotaped imagery showed the tsunami which propagated into Shin-Kushiro River struck a sluice gate with wave breaking. The main aim of this report is to develop a 3D particle based simulation model for analysis of interaction between river-tsunami and river facilities such as sluice gates. The model is applied to the estimation of wave impact on the sluice gate. Two cases of installation of tsunami absorbing piles are considered to confirm their effectiveness for attenuation of wave impact load on river structures.
