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

查看全文 作　　者：WU [1]Peng;HIRSHFIELD [1]Faye;SUI [1]Jueyi;[2]王军;[2]陈胖胖

机构地区：[1]Environmental Engineering,University of Northern British Columbia;[2]School of Civil Engineering,Hefei University of Technology

出　　处：《Journal of Hydrodynamics》索引2014年第26卷第1期,共9页

基　　金：funded partially by the Research Project Awards from UNBC;the Natural Science and Engineering Research Council of Canada(NSERC) 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. 关键词：局部冲刷半圆形冰盖桥墩最大冲刷深度水槽实验面积计算粗糙度

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

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