| ID |
2964 |
| Citation |
Wu P., Hirshfield F. and Sui J. (2014) Further studies of incipient motion and shear stress on local scour around bridge abutments under ice cover, Canadian Journal of Civil Engineering 41: pp. 892–899. DOI:10.1139/cjce-2013-0552 |
| Organization |
University of Northern British Columbia |
| URL |
http://www.unbc.ca/sites/default/files/sections/quesnel-river-research-centre/wuetal2014.pdf |
| Abstract/Description or Keywords |
An experimental study was conducted to investigate the scour development around bridge abutments under ice cover with non-uniform natural sands. Two abutments and three non-uniform sediments were used in the research. The mechanism of incipient motion for non-uniform sediments under ice cover was analyzed. By introducing scour angles around two abutments, a relationship between maximum scour depth and velocity was established for clear-water scour under ice cover. Dimensionless shear stress was also calculated and compared with shear Reynolds number for non-uniform sediments. The maximum scour depth and dimensionless shear stress were investigated under both open channel, smooth cover and rough covered conditions. Results show that around the square abutment, the scour angle is smaller than that of the semi-circular abutment. For clear water scour, the maximum scour depth increases due to the presence of ice cover. bridge abutment; dimensionless shear stress; ice cover; incipient motion; scour angle |
| Information Type |
Article |
| Regional Watershed |
Quesnel River |
| Sub-watershed if known |
|
| Aquifer # |
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| Comments |
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| Project status |
|
| Contact Name |
Jueyi Sui |
| Contact Email |
[email protected] |
