Predicting scour at river bridge abutments over time
Good prediction of scour depth over time is essential for the design of river bridge foundations. In this study, two empirical models are developed to predict the temporal variation of local scour at uniform-section bridge abutments and those with enlarged bases, known as ‘compound’ abutments. The c...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
ICE Publishing
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/45929/ http://psasir.upm.edu.my/id/eprint/45929/1/Predicting%20scour%20at%20river%20bridge%20abutments%20over%20time.pdf |
| _version_ | 1848850561948975104 |
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| author | Mohammadpour, Reza Ab Ghani, Aminuddin Zakaria, Nor Azazi Mohamed, Thamer Ahmed |
| author_facet | Mohammadpour, Reza Ab Ghani, Aminuddin Zakaria, Nor Azazi Mohamed, Thamer Ahmed |
| author_sort | Mohammadpour, Reza |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Good prediction of scour depth over time is essential for the design of river bridge foundations. In this study, two empirical models are developed to predict the temporal variation of local scour at uniform-section bridge abutments and those with enlarged bases, known as ‘compound’ abutments. The concepts of the principal vortex and the volumetric rate of sediment transport theory are employed to develop the models. The critical bed-shear stress at the scour hole is chosen as a criterion to determine the equilibrium scour depth. To validate the models, experiments are conducted on compound and uniform abutments under clear water conditions. A comparison between the calculated and observed data indicates that the models are able to predict the temporal variation of the scour depth with reasonable accuracy, particularly for abutments with short lengths. |
| first_indexed | 2025-11-15T10:08:15Z |
| format | Article |
| id | upm-45929 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:08:15Z |
| publishDate | 2015 |
| publisher | ICE Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-459292022-05-19T04:42:59Z http://psasir.upm.edu.my/id/eprint/45929/ Predicting scour at river bridge abutments over time Mohammadpour, Reza Ab Ghani, Aminuddin Zakaria, Nor Azazi Mohamed, Thamer Ahmed Good prediction of scour depth over time is essential for the design of river bridge foundations. In this study, two empirical models are developed to predict the temporal variation of local scour at uniform-section bridge abutments and those with enlarged bases, known as ‘compound’ abutments. The concepts of the principal vortex and the volumetric rate of sediment transport theory are employed to develop the models. The critical bed-shear stress at the scour hole is chosen as a criterion to determine the equilibrium scour depth. To validate the models, experiments are conducted on compound and uniform abutments under clear water conditions. A comparison between the calculated and observed data indicates that the models are able to predict the temporal variation of the scour depth with reasonable accuracy, particularly for abutments with short lengths. ICE Publishing 2015 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/45929/1/Predicting%20scour%20at%20river%20bridge%20abutments%20over%20time.pdf Mohammadpour, Reza and Ab Ghani, Aminuddin and Zakaria, Nor Azazi and Mohamed, Thamer Ahmed (2015) Predicting scour at river bridge abutments over time. Proceedings of the Institution of Civil Engineers - Water Management, 170 (1). pp. 15-30. ISSN 1741-7589; ESSN:1751-7729 https://www.icevirtuallibrary.com/doi/10.1680/jwama.14.00136 10.1680/jwama.14.00136 |
| spellingShingle | Mohammadpour, Reza Ab Ghani, Aminuddin Zakaria, Nor Azazi Mohamed, Thamer Ahmed Predicting scour at river bridge abutments over time |
| title | Predicting scour at river bridge abutments over time |
| title_full | Predicting scour at river bridge abutments over time |
| title_fullStr | Predicting scour at river bridge abutments over time |
| title_full_unstemmed | Predicting scour at river bridge abutments over time |
| title_short | Predicting scour at river bridge abutments over time |
| title_sort | predicting scour at river bridge abutments over time |
| url | http://psasir.upm.edu.my/id/eprint/45929/ http://psasir.upm.edu.my/id/eprint/45929/ http://psasir.upm.edu.my/id/eprint/45929/ http://psasir.upm.edu.my/id/eprint/45929/1/Predicting%20scour%20at%20river%20bridge%20abutments%20over%20time.pdf |