Subjects
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Civil Engineering: structural, Geotechnical, reinforced concrete and s…nd sanitary engineering, Hydraulic, Railway, construction Management.
Abstract
Debris accumulation around bridge supports can constrict and redirect flow through the muti-vents bridges resulting in significant bridge foundation scour. The experimental study of this paper, aims to investigate the effect of different porosities of partial blockage at front of bridge pier on local scour depth formed around bridge supports. The permeable blockage with different relative heights (H/Bp= 0.4, 0.8 and 1.2) was fixed on and above the mobile bed. It was found that, for 15% porosity ratio of permeable blockage, the local scour depth at the left pier and right abutment was increased by 11.3% and 20% respectively compared to the no-blockage case. In addition the permeable blockage that placed at the water surface produces more local scour depth at multi-vents bridge supports compared to its location on the mobile bed.
DOI
10.21608/jesaun.2016.117585
Keywords
Local Scour, Pier, abutment, Permeable blockage, Hydraulic structures
Authors
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Faculty of Engineering, Benha University, Egypt.
Email
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-MiddleName
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Faculty of Engineering ,Zagazig University, Egypt.
Email
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-MiddleName
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Faculty of Engineering ,Zagazig University, Egypt.
Email
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-MiddleName
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Faculty of Engineering, Benha University, Egypt.
Email
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Amira Bahaa Abd-Elhasseb
MiddleName
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The Higher Institute of Engineering, El-Shorouk Academy, Egypt.
Email
amera.fares19@yahoo.com
City
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-Link
https://jesaun.journals.ekb.eg/article_117585.html
Detail API
https://jesaun.journals.ekb.eg/service?article_code=117585
Publication Title
JES. Journal of Engineering Sciences
Publication Link
https://jesaun.journals.ekb.eg/
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