| Autor: |
van Bergeijk, Vera M., Warmink, Jord J., Hulscher, Suzanne J.M.H. |
| Přispěvatelé: |
Marine and Fluvial Systems |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Zdroj: |
STARTPAGE=42;ENDPAGE=43;TITLE=NCR Days 2021 |
| Popis: |
Climate change increases the vulnerability of grass-covered river dikes due to increasing river discharges in the winter and weaking of the dike cover during droughts in the summer. Wave overtopping is one of the main failure mechanisms of grass-covered dikes. Large waves during a storm overtop the dike, flow over the crest and flow down along the landward slopes. The high flow velocities in combination with turbulence result in erosion of the grass cover (Figure 1). According to the WBI, the dike fails when an erosion depth of 20 cm is reached. Damages in the dike cover as the result of animal borrowings are weak spots that are vulnerable for wave overtopping erosion. In this study, we calculate the effect of these damages on the failure probability of wave overtopping to determine the vulnerability of these damages. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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