Local scour at wide bridge piers
Laboratory data for local scour depth at the size of wide piers are presented. Clear water scour tests were performed various pier widths (0.06, 0.076, 0.102, 0.14 and 0.165 m), two type of pier shapes (circular and rectangular) and two types of uniform cohesionless bed sediment (d50 = 0.23 and d50...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Published: |
ESRSA Publication
2014
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/34395/ |
| _version_ | 1848847760697065472 |
|---|---|
| author | Ahmad, Nordila Mohammed Ali, Thamer Ahmed Ali, Faisal Yusuf, Badrunnisa |
| author_facet | Ahmad, Nordila Mohammed Ali, Thamer Ahmed Ali, Faisal Yusuf, Badrunnisa |
| author_sort | Ahmad, Nordila |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Laboratory data for local scour depth at the size of wide piers are presented. Clear water scour tests were performed various pier widths (0.06, 0.076, 0.102, 0.14 and 0.165 m), two type of pier shapes (circular and rectangular) and two types of uniform cohesionless bed sediment (d50 = 0.23 and d50 = 0.80 mm). New data are presented and used to demonstrate the effects of pier width, pier shape and sediment size on scour depth. The influence of equilibrium time (te on scouring processes also discussed. Equilibrium scour depths were found to decrease with increasing values of b/d50. The temporal development of equilibrium local scour depth with new laboratory data is demonstrated for flow intensity = 0.95. On the other hand, the result of scour mechanism have shown a significant relationship between normalized volume of scoured and deposited with pier width, b. The experimental data obtained in this study and data available from the literature for wide piers are used to evaluate predictions of existing methods. |
| first_indexed | 2025-11-15T09:23:44Z |
| format | Article |
| id | upm-34395 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T09:23:44Z |
| publishDate | 2014 |
| publisher | ESRSA Publication |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-343952015-12-15T00:30:47Z http://psasir.upm.edu.my/id/eprint/34395/ Local scour at wide bridge piers Ahmad, Nordila Mohammed Ali, Thamer Ahmed Ali, Faisal Yusuf, Badrunnisa Laboratory data for local scour depth at the size of wide piers are presented. Clear water scour tests were performed various pier widths (0.06, 0.076, 0.102, 0.14 and 0.165 m), two type of pier shapes (circular and rectangular) and two types of uniform cohesionless bed sediment (d50 = 0.23 and d50 = 0.80 mm). New data are presented and used to demonstrate the effects of pier width, pier shape and sediment size on scour depth. The influence of equilibrium time (te on scouring processes also discussed. Equilibrium scour depths were found to decrease with increasing values of b/d50. The temporal development of equilibrium local scour depth with new laboratory data is demonstrated for flow intensity = 0.95. On the other hand, the result of scour mechanism have shown a significant relationship between normalized volume of scoured and deposited with pier width, b. The experimental data obtained in this study and data available from the literature for wide piers are used to evaluate predictions of existing methods. ESRSA Publication 2014-01 Article PeerReviewed Ahmad, Nordila and Mohammed Ali, Thamer Ahmed and Ali, Faisal and Yusuf, Badrunnisa (2014) Local scour at wide bridge piers. International Journal of Engineering Research & Technology , 3 (1). pp. 742-754. ISSN 2278-0181 http://www.ijert.org/view-pdf/7447/local-scour-at-wide-bridge-piers |
| spellingShingle | Ahmad, Nordila Mohammed Ali, Thamer Ahmed Ali, Faisal Yusuf, Badrunnisa Local scour at wide bridge piers |
| title | Local scour at wide bridge piers |
| title_full | Local scour at wide bridge piers |
| title_fullStr | Local scour at wide bridge piers |
| title_full_unstemmed | Local scour at wide bridge piers |
| title_short | Local scour at wide bridge piers |
| title_sort | local scour at wide bridge piers |
| url | http://psasir.upm.edu.my/id/eprint/34395/ http://psasir.upm.edu.my/id/eprint/34395/ |