水利学报2017，Vol.48Issue(5)：588-593,6.DOI:10.13243/j.cnki.slxb.20160717
桥墩影响下弯槽冰塞形成临界条件和冰厚变化的试验研究
Impacts of bridge pier on ice jam initiation and ice thickness in a curved channel-an experimental study
摘要
Abstract
The presence of bridge piers in natural rivers would change the local flow field characteristics,and influence initiation and evolution of ice jam.Through model experiment study in which the location of bridge pier constantly changes,the ice jam evolution process under different position of bridge pipers were studied.The experiment results show that the presence of bridge piers changes the local flow field characteristics,relatively enhancing the ability of ice conveyance around and reducing the ice thickness;the ice conveyance efficiency intends to increase if bridge pier is placed at the apex of a bend,compared to be placed at the midway between two consecutive bends.If bridge piers are synchronously placed at midway between two consecutive bends and the apex of a bend,the balance of ice jam is not smaller than the single bridge pier placed at two different location of pipers,but between them.关键词
桥墩/冰塞/厚度/输冰能力/试验研究Key words
bridge pier/ice jam/thickness/ice conveyance/experimental study分类
建筑与水利引用本文复制引用
王军,汪涛,李淑祎,陈胖胖..桥墩影响下弯槽冰塞形成临界条件和冰厚变化的试验研究[J].水利学报,2017,48(5):588-593,6.基金项目
国家自然科学基金资助项目(51379054) （51379054）
