Reduction of Local Scour around Bridge Piers Using Different Countermeasures.
Allam, A., Shamaa, M., Zidan, A. (2021). Reduction of Local Scour around Bridge Piers Using Different Countermeasures.. EKB Journal Management System, 46(1), 1-9. doi: 10.21608/bfemu.2021.146320
Abdallah Mohammed Allam; Mohamed Tarek Shamaa; Abdel Razek Zidan. "Reduction of Local Scour around Bridge Piers Using Different Countermeasures.". EKB Journal Management System, 46, 1, 2021, 1-9. doi: 10.21608/bfemu.2021.146320
Allam, A., Shamaa, M., Zidan, A. (2021). 'Reduction of Local Scour around Bridge Piers Using Different Countermeasures.', EKB Journal Management System, 46(1), pp. 1-9. doi: 10.21608/bfemu.2021.146320
Allam, A., Shamaa, M., Zidan, A. Reduction of Local Scour around Bridge Piers Using Different Countermeasures.. EKB Journal Management System, 2021; 46(1): 1-9. doi: 10.21608/bfemu.2021.146320

Reduction of Local Scour around Bridge Piers Using Different Countermeasures.

MEJ- Mansoura Engineering Journal
Article 13, Volume 46, Issue 1, March 2021, Page 1-9  XML PDF (1.94 MB)
Document Type: Research Studies
DOI: 10.21608/bfemu.2021.146320
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Authors
Abdallah Mohammed Allam email 1; Mohamed Tarek Shamaa2; Abdel Razek Zidan3
1Irrigation Engineering and Hydraulics Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
2Associate Professor., Irrigation and Hydraulics Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
3Irrigation & Hydraulics Dept., Fac. of Engrg., Mansoura Univ., Mansoura, Egypt.
Abstract
 Local scour around bridge piers is one of the main causes of bridge failure. Experimental and hydraulic models were carried out to investigate three types of scour reduction methods around a single oblong pier, called slots, upstream curved face and sacrificial piles. First, these methods were used alone then combination of them was made to achieve the minimum scour depth. The results revealed that slots, in general, have more influence in reducing scour depth than upstream curved face, with a reduction in the scour depth of about 25% of maximum scour. On the other hand, the upstream curved face and straight slot together appeared to be the most effective in reducing the scour around the bridge oblong pier, with a percentage reduction equal to about 30%. When using two sacrificial piles with upstream curved face slotted oblong pier were used, the least scour amongst all the arrangement with about 49% reduction in maximum scour depth upstream of the pier was achieved.
Keywords
Clear water; Flow depth; Straight slot; Curved face; Sacrificial piles
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