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Laboratory Study on Erosion of Vegetated HPTRM System under High-Speed Open-Channel Flow
| 题名： | Laboratory Study on Erosion of Vegetated HPTRM System under High-Speed Open-Channel Flow |
| 其他题名： | ASCE Hurricane Katrina External Review Panel.(2007).The New Orleans hurricane protection system:What went wrong and why,ASCE,Reston,VA. |
| 正文语种： | 英文 |
| 作者： | Yi Pan |
| 关键词： | High-performance turf reinforcement mat (HPTRM);Rolled erosion-control product (RECP);Vegetation lining;Erosion;Laboratory test |
| 摘要： | High-performance turf reinforcement mat (HPTRM) is a technology to strengthen the vegetation lining and enhance its antierosion capability. Existing studies on the erosion resistance of vegetated HPTRM systems are mainly based on large-scale tests and focus on permissible flow velocity and shear stress. In this study, a specially designed flume was used to generate high-speed open-channel flow and investigate the erosion process of a vegetated HPTRM system. In total, 48 samples of natural vegetation and three types of vegetated HPTRM systems were cultivated and tested under different slopes and discharges. Both continuous and discontinuous tests were conducted. During the tests, erosion depths, flow discharges, and flow velocities were recorded. The difference between the erosion rates of continuous and discontinuous tests indicates that the first flushing of the flow induced most of the erosion of the vegetated HPTRM system. The erosion processes of the samples displayed a decrease in erosion rate with an increase in erosion depth, which can be explained by the exposure of HPTRM and consequent increase of anti-erosion capability. The influences of flow discharge and the structure of the HPTRM on the erosion process we also investigated. |
| 出版年： | 2018 |
| 论文唯一标识： | P-108Y2018V144N01006 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/(ASCE)WW.1943-5460.0000426 |
| 期刊名称： | Journal of Waterway, Port, Coastal, and Ocean Engineering |
| 拼音刊名(出版物代码)： | P-108 |
| 卷： | 144 |
| 期： | 01 |
| 页码： | 68-76 |
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