Impacts of ice cover on local scour around semi-circular bridge abutment

被引：0
|
作者：
WU Peng [1 ]
HIRSHFIELD Faye [1 ]
SUI Jueyi [1 ]
王军 [2 ]
陈胖胖 [2 ]
机构：
[1] Environmental Engineering,University of Northern British Columbia
[2] School of Civil Engineering,Hefei University of Technology
来源：
Journal of Hydrodynamics | 2014年 / 26卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
ice cover; local scour; semi-circular abutment; maximum scour depth; scour pattern;
D O I：
暂无
中图分类号：
U443.22 [桥墩]; U442.3 [桥涵水文勘测与计算];
学科分类号：
摘要：
The presence of ice cover in winter can significantly change the flow field around bridge abutments,which can also cause a different local scour pattern.To investigate the impacts of ice cover,results from a recent flume experiments were presented.Smooth and rough ice covers were created to investigate the impacts of ice cover roughness on the scour geometry around the semi-circular abutment.Three bed materials were used,with50D s of 0.58 mm,0.50 mm,0.47 mm respectively.Scour volume and scour area were calculated.It was found that the maximum scour depth was located 75o inclined to the flume wall.Under rough ice cover,the scour area and scour depth were the largest.An empirical equation on the maximum scour depth was also developed.
引用
收藏
页码：10 / 18
页数：9
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