| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2017: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
|---|
| Outline of Final Research Achievements |
Dike failures recently occur during floods, and it is of great importance to predict the dike failure process accurately for disaster mitigation. In this study, a density function method and a porous media approach are applied for the three-dimensional flow model, to consider water surface variations in unsteady flow conditions and the filtration through the embankment. The simulation of the dike breaching process due to overtopping is carried out, by using the developed flow model and the bed deformation model. In addition, a numerical model to predict the dike failure process due to seepage flows is proposed, coupling the flow model with the soil deformation model based on GIMP method.
|
