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Pile Fence to Reduce Wave Overtopping and Overwash of Dune
| 题名： | Pile Fence to Reduce Wave Overtopping and Overwash of Dune |
| 其他题名： | Ayat,B.,and Kobayashi,N.(2015)."Vertical cylinder density and toppling effects on dune erosion and overwash."J.Waterway,Port,Coastal,Ocean Eng.,10.1061/(ASCE)WW.1943-5460.000026404014026. |
| 正文语种： | 英文 |
| 作者： | Rebecca Quan |
| 关键词： | Pile fence;Dune;Wave overtopping;Overwash;Erosion |
| 摘要： | An experiment was performed to examine the utility of a pile fence in reducing dune erosion and overwash during a storm. Six tests consisting of 58 runs of 400 s each were conducted to compare the effectiveness of six different pile fences arranged in a single row and staggered double rows. The preliminary experiment suggests that the pile fence with a porosity of about 0.5 should be placed near the toe of the dune foreslope with a sufficient burial depth to avoid toppling. A cross-shore numerical model is adjusted to simulate the drag force acting on the pile fence. The adjusted model is compared with the beach and dune profile evolution and the wave overtopping and sand overwash rates measured in the six tests. The model is expanded to predict the extreme (5, 1, and 0.013％ exceedance probabilities) of the free-surface elevation and onshore velocity for the future design of the pile fence against the wave forces. The proposed pile fence appears promising but will need to be tested at a field site. |
| 出版年： | 2015 |
| 论文唯一标识： | P-108Y2015V141N06003 |
| 英文栏目名称： | Technical Papers |
| doi： | 10.1061/(ASCE)WW.1943-5460.0000308 |
| 期刊名称： | Journal of Waterway, Port, Coastal, and Ocean Engineering |
| 拼音刊名(出版物代码)： | P-108 |
| 卷： | 141 |
| 期： | 06 |
| 页码： | 2-11 |
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