Numerical Simulation of Damage to Soil Embankments by Tsunami Overflow

Autor:	Nobuo Shuto, Hiroyuki Fujii, Shintaro Hotta, Toshimitu Takagi
Rok vydání:	2010
Předmět:	geography geography.geographical_feature_category Computer simulation Field data Soil water Erosion Geotechnical engineering Levee Erosion rate Geology
Zdroj:	Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering). 66:246-250
ISSN:	1883-8944 1884-2399
DOI:	10.2208/kaigan.66.246
Popis:	There have been many studies on tsunami forces acting on structures, but few studies on tsunami-induced water flows that move a lot of sands or soils, resulting in damages to such structures as road embankments and seawalls. In the present study, the damage of soil embankments by tsunami overflow is discussed. Hydraulic experiments on movable beds reveal that the erosion of the downstream slope and the scouring at the rear toe are important factors in the erosion of soil embankments. An erosion rate law is experimentally established. A numerical method based on the CADMAS-SURF to simulate the erosion of soil embankments is developed using these data. It is applied to gain insight into the Shuto diagram (2001) about the damages of embankment obtained from field data in the past.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::da3e149dbf68ade8ec000b4013e640bf https://doi.org/10.2208/kaigan.66.246 Zobrazit plný text záznamu