Investigating the Performance of Enhanced Permeable Groins in Series
The enhanced permeable groin is a novel eco-friendly and cost-effective technique for bank protection and restoration of meander bends. The behavior of bed deformations due to the distance between the structures has to be studied to design enhanced permeable groins in series properly. In this study,...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/12/12/3531 |
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| author | Manoochehr Shokrian Hajibehzad Mahmood Shafai Bejestan Vito Ferro |
| author_facet | Manoochehr Shokrian Hajibehzad Mahmood Shafai Bejestan Vito Ferro |
| author_sort | Manoochehr Shokrian Hajibehzad |
| collection | DOAJ |
| description | The enhanced permeable groin is a novel eco-friendly and cost-effective technique for bank protection and restoration of meander bends. The behavior of bed deformations due to the distance between the structures has to be studied to design enhanced permeable groins in series properly. In this study, scour morphologies around enhanced permeable groins in series, characterized by four different distances and located in a 180° mild flume bend, for clear water conditions were investigated. The analysis indicated that scour geometrical patterns such as the maximum scour depth nearby the structures and the maximum deposition height between them are strongly affected by the distance between the groins. The results revealed that the maximum scour depth around the structures increases with the distance between structures, the scour holes develop towards the outer bank and create a series of pools that can lead to the bank collapse. All experiments, carried out with different structure distances, demonstrated that the location of thalweg effectively shifted towards the middle of the channel and near the inner bank for high and low particle Froude numbers, respectively. As a general result, a distance between enhanced permeable groins equal to four times the effective length of the structure is recommended for a 180° mild flume bend for the investigated particle Froude numbers. Finally, a general design guideline is presented to a proper design of enhanced permeable groins in series. |
| first_indexed | 2024-03-10T14:01:59Z |
| format | Article |
| id | doaj.art-58bcb4f430ac41fcae8a09cbf942602f |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T14:01:59Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-58bcb4f430ac41fcae8a09cbf942602f2023-11-21T01:01:23ZengMDPI AGWater2073-44412020-12-011212353110.3390/w12123531Investigating the Performance of Enhanced Permeable Groins in SeriesManoochehr Shokrian Hajibehzad0Mahmood Shafai Bejestan1Vito Ferro2Department of Civil Engineering, Islamic Azad University Miandoab Branch, Miandoab 5936159351, IranDepartment of Water Structures, Shahid Chamran University of Ahvaz, Ahvaz 6135783151, IranDepartment of Earth and Marine Science, University of Palermo, Via Archirafi 20, 90128 Palermo, ItalyThe enhanced permeable groin is a novel eco-friendly and cost-effective technique for bank protection and restoration of meander bends. The behavior of bed deformations due to the distance between the structures has to be studied to design enhanced permeable groins in series properly. In this study, scour morphologies around enhanced permeable groins in series, characterized by four different distances and located in a 180° mild flume bend, for clear water conditions were investigated. The analysis indicated that scour geometrical patterns such as the maximum scour depth nearby the structures and the maximum deposition height between them are strongly affected by the distance between the groins. The results revealed that the maximum scour depth around the structures increases with the distance between structures, the scour holes develop towards the outer bank and create a series of pools that can lead to the bank collapse. All experiments, carried out with different structure distances, demonstrated that the location of thalweg effectively shifted towards the middle of the channel and near the inner bank for high and low particle Froude numbers, respectively. As a general result, a distance between enhanced permeable groins equal to four times the effective length of the structure is recommended for a 180° mild flume bend for the investigated particle Froude numbers. Finally, a general design guideline is presented to a proper design of enhanced permeable groins in series.https://www.mdpi.com/2073-4441/12/12/3531river bendriver restorationscourbank protectionenhanced permeable groin |
| spellingShingle | Manoochehr Shokrian Hajibehzad Mahmood Shafai Bejestan Vito Ferro Investigating the Performance of Enhanced Permeable Groins in Series Water river bend river restoration scour bank protection enhanced permeable groin |
| title | Investigating the Performance of Enhanced Permeable Groins in Series |
| title_full | Investigating the Performance of Enhanced Permeable Groins in Series |
| title_fullStr | Investigating the Performance of Enhanced Permeable Groins in Series |
| title_full_unstemmed | Investigating the Performance of Enhanced Permeable Groins in Series |
| title_short | Investigating the Performance of Enhanced Permeable Groins in Series |
| title_sort | investigating the performance of enhanced permeable groins in series |
| topic | river bend river restoration scour bank protection enhanced permeable groin |
| url | https://www.mdpi.com/2073-4441/12/12/3531 |
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