Evaluation of the Local Scour Downstream Untraditional Bridge Piers
The reduction of local scour downstream bridge piers got a massive concentration by several studies. In this study the D/S edge of the rectangular section semicircular bridge pier was reduced. This reduction was built to determine its influence on the local scour D/S these piers. Four models of the...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Arabic |
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Mustansiriyah University/College of Engineering
2012-09-01
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| Series: | Journal of Engineering and Sustainable Development |
| Subjects: | |
| Online Access: | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1259 |
| _version_ | 1811232962979561472 |
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| author | Hamid H. Hussein Inam A. K. Juma Nashwan I. Hammo |
| author_facet | Hamid H. Hussein Inam A. K. Juma Nashwan I. Hammo |
| author_sort | Hamid H. Hussein |
| collection | DOAJ |
| description |
The reduction of local scour downstream bridge piers got a massive concentration by several studies. In this study the D/S edge of the rectangular section semicircular bridge pier was reduced. This reduction was built to determine its influence on the local scour D/S these piers. Four models of the piers were manufactured from thermo-stone. The upstream semicircle diameter was fixed by a 10 cm, while the D/S diameter was changed to 4,6,8 and 10 cm . The experimental results provide evidence that the reduce of the D/S diameter of the pier leads to decrease the D/S scour depth and length . Moreover, in its place the sand was noticeably deposited D/S the pier. The experimental results was used to develop two liner empirical relations the first to estimate the ratio of maximum scour depth to U/S diameter of the pier ds/d1 . While the second to estimate the ratio of the length of scour to U/S diameter of the pier X/d1 , in terms of the ratio for D/S diameter of the pier to U/S diameter of the pier d2/d1 , length of the scour U/S the pier to D/S diameter Z1/d2, maximum width of scour to D/S diameter Z2/d2.
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| first_indexed | 2024-04-12T11:12:01Z |
| format | Article |
| id | doaj.art-2a25f6d5842f4c13a898526637279448 |
| institution | Directory Open Access Journal |
| issn | 2520-0917 2520-0925 |
| language | Arabic |
| last_indexed | 2024-04-12T11:12:01Z |
| publishDate | 2012-09-01 |
| publisher | Mustansiriyah University/College of Engineering |
| record_format | Article |
| series | Journal of Engineering and Sustainable Development |
| spelling | doaj.art-2a25f6d5842f4c13a8985266372794482022-12-22T03:35:35ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252012-09-01163Evaluation of the Local Scour Downstream Untraditional Bridge PiersHamid H. Hussein0Inam A. K. Juma1Nashwan I. Hammo2Technical Engineering College, Northern Technical University, Mosul, IraqEngineering College, University of Mosul, Mosul, IraqEngineering College, University of Mosul, Mosul, Iraq The reduction of local scour downstream bridge piers got a massive concentration by several studies. In this study the D/S edge of the rectangular section semicircular bridge pier was reduced. This reduction was built to determine its influence on the local scour D/S these piers. Four models of the piers were manufactured from thermo-stone. The upstream semicircle diameter was fixed by a 10 cm, while the D/S diameter was changed to 4,6,8 and 10 cm . The experimental results provide evidence that the reduce of the D/S diameter of the pier leads to decrease the D/S scour depth and length . Moreover, in its place the sand was noticeably deposited D/S the pier. The experimental results was used to develop two liner empirical relations the first to estimate the ratio of maximum scour depth to U/S diameter of the pier ds/d1 . While the second to estimate the ratio of the length of scour to U/S diameter of the pier X/d1 , in terms of the ratio for D/S diameter of the pier to U/S diameter of the pier d2/d1 , length of the scour U/S the pier to D/S diameter Z1/d2, maximum width of scour to D/S diameter Z2/d2. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1259Hydraulic structuresBridge pierslocal scourANN |
| spellingShingle | Hamid H. Hussein Inam A. K. Juma Nashwan I. Hammo Evaluation of the Local Scour Downstream Untraditional Bridge Piers Journal of Engineering and Sustainable Development Hydraulic structures Bridge piers local scour ANN |
| title | Evaluation of the Local Scour Downstream Untraditional Bridge Piers |
| title_full | Evaluation of the Local Scour Downstream Untraditional Bridge Piers |
| title_fullStr | Evaluation of the Local Scour Downstream Untraditional Bridge Piers |
| title_full_unstemmed | Evaluation of the Local Scour Downstream Untraditional Bridge Piers |
| title_short | Evaluation of the Local Scour Downstream Untraditional Bridge Piers |
| title_sort | evaluation of the local scour downstream untraditional bridge piers |
| topic | Hydraulic structures Bridge piers local scour ANN |
| url | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1259 |
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