Effect of tailwater depth on non-cohesive earth dam failure due to overtopping
The influence of tailwater depth on earth dam failure due to overtopping is investigated experimentally in this work. Four different values of tailwater depths are examined. For each experiment, the evolution of the dam bathymetry profile, the duration of failure, the eroded volume, and the outflow...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-08-01
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| Series: | Ain Shams Engineering Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2090447922003458 |
| _version_ | 1797826901006352384 |
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| author | Shaimaa Aman Mohamed Abdelrazek Rezk Rabiea Nasr |
| author_facet | Shaimaa Aman Mohamed Abdelrazek Rezk Rabiea Nasr |
| author_sort | Shaimaa Aman |
| collection | DOAJ |
| description | The influence of tailwater depth on earth dam failure due to overtopping is investigated experimentally in this work. Four different values of tailwater depths are examined. For each experiment, the evolution of the dam bathymetry profile, the duration of failure, the eroded volume, and the outflow hydrograph are observed and recorded. The results reveal that increasing the tailwater depth reduces the time of failure by up to 57% and decreases the relative eroded crest height by up to 77.6%. In addition, for relative tailwater depths equal to 3, 4, and 5, the reduction in the cumulative eroded volume is 23, 36.5, and 75%, while the reduction in peak discharge is 7, 14, and 17.35%, respectively. The experimental results are utilized to evaluate the performance of the Flow 3D software in replicating the erosion process. The numerical model successfully simulates the erosion process of non-cohesive earth dams. |
| first_indexed | 2024-04-09T12:39:42Z |
| format | Article |
| id | doaj.art-5a12c6603c12458fbd5eed8331e72ff3 |
| institution | Directory Open Access Journal |
| issn | 2090-4479 |
| language | English |
| last_indexed | 2024-04-09T12:39:42Z |
| publishDate | 2023-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ain Shams Engineering Journal |
| spelling | doaj.art-5a12c6603c12458fbd5eed8331e72ff32023-05-15T04:14:14ZengElsevierAin Shams Engineering Journal2090-44792023-08-01148102034Effect of tailwater depth on non-cohesive earth dam failure due to overtoppingShaimaa Aman0Mohamed Abdelrazek Rezk1Rabiea Nasr2Assistant Lecturer in Irrigation and Hydraulics Department, Alexandria University, Alexandria 11432, Egypt; Corresponding author at: Dept. of civil Engineering, University of Alexandria, 11432, Egypt.Professor of Hydraulic Structures in Irrigation and Hydraulics Department, Alexandria University, Alexandria 11432, EgyptProfessor of Hydraulic Structures in Irrigation and Hydraulics Department, Alexandria University, Alexandria 11432, EgyptThe influence of tailwater depth on earth dam failure due to overtopping is investigated experimentally in this work. Four different values of tailwater depths are examined. For each experiment, the evolution of the dam bathymetry profile, the duration of failure, the eroded volume, and the outflow hydrograph are observed and recorded. The results reveal that increasing the tailwater depth reduces the time of failure by up to 57% and decreases the relative eroded crest height by up to 77.6%. In addition, for relative tailwater depths equal to 3, 4, and 5, the reduction in the cumulative eroded volume is 23, 36.5, and 75%, while the reduction in peak discharge is 7, 14, and 17.35%, respectively. The experimental results are utilized to evaluate the performance of the Flow 3D software in replicating the erosion process. The numerical model successfully simulates the erosion process of non-cohesive earth dams.http://www.sciencedirect.com/science/article/pii/S2090447922003458Earth damEroded volumeFlow 3D modelNon-cohesive soilOvertopping failureTailwater depth |
| spellingShingle | Shaimaa Aman Mohamed Abdelrazek Rezk Rabiea Nasr Effect of tailwater depth on non-cohesive earth dam failure due to overtopping Ain Shams Engineering Journal Earth dam Eroded volume Flow 3D model Non-cohesive soil Overtopping failure Tailwater depth |
| title | Effect of tailwater depth on non-cohesive earth dam failure due to overtopping |
| title_full | Effect of tailwater depth on non-cohesive earth dam failure due to overtopping |
| title_fullStr | Effect of tailwater depth on non-cohesive earth dam failure due to overtopping |
| title_full_unstemmed | Effect of tailwater depth on non-cohesive earth dam failure due to overtopping |
| title_short | Effect of tailwater depth on non-cohesive earth dam failure due to overtopping |
| title_sort | effect of tailwater depth on non cohesive earth dam failure due to overtopping |
| topic | Earth dam Eroded volume Flow 3D model Non-cohesive soil Overtopping failure Tailwater depth |
| url | http://www.sciencedirect.com/science/article/pii/S2090447922003458 |
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