NUMERICAL SIMULATIONS OF CHANNEL INFILLING ASSOCIATED WITH DEFORMATION OF RIVER MOUTH BAR

Proceedings of the International Conference on Coastal Engineering

Kenji Ishimoto²  Keiji Kuroki²  Jae Hyeng Lee¹  Yoshimasa Ito¹  Nobuyuki Ono² 

[1]ECOH Corporation

关键词: river mouth bar;    sand bar;    channel infilling;    morphology change;    flooding;    waves and current;   

DOI  :  10.9753/icce.v34.sediment.54

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

Masuda port is located in both sides of the mouth of Takatsu River, the access channel of which passes behind a river-mouth bar. This study intends to develop a tool for examination of countermeasures against channel infilling which is very linked with deformation of river-mouth bar. First, the relation between the sand bar deformation and channel infilling has been examined for the river mouth area of Takatsu River through analysis of aerial photos, current and wave data, bathymetric survey data, and so on. As the results, two dominant processes of flushing sand bar due to flood and reformation of sand bar by waves are confirmed. Also, numerical simulations for the two dominant processes have been conducted and the reproducibility of the model has been examined.

【 授权许可】

Unknown