Clear-water local scouring around three piers in a tandem arrangement
Clear-water local scouring around three piers in a tandem arrangement
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串联布置的三个桥墩周围的清水局部冲刷
DOI：
10.1007/s11431-015-5905-1
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发表时间：
2016-03
期刊：
影响因子：
--
通讯作者：
Xiao Jianfeng
中科院分区：
文献类型：
--
作者：
Wang Hao;Tang Hongwu;Xiao Jianfeng
在恒定清水条件下，进行了三个桥墩的局部冲刷试验。我们研究了桥墩间距和流速在冲刷深度和进展中的作用。上游桥墩周围的钻孔深度与单墩相同，与桥墩间距无关。随着流速的增加，中、下游桥墩的冲刷行为经历了同步冲刷区、过渡区和径向偏离区。中、下游桥墩从同步冲刷区到过渡区的临界流速相同，随桥墩间距的增大而线性增大。中、下游桥墩径向偏差区的偏差程度取决于桥墩间距。中墩从过渡区到径向偏离区的临界流速随墩间距的增大而增大。当墩间距大于11倍墩径时，三墩结构的冲刷深度与单墩相同，表明墩间流固耦合作用的极限。最后，本研究的数据被用来推导调整系数，以预测三个桥墩周围的局部冲刷深度。
Experiments of local scouring around three piers were carried out under steady clear-water conditions. We investigated the role of pier spacing and flow rate in scour depth and progression. The scour-hole depth around the upstream pier was the same as that for single piers and independent of pier spacing. The scour behavior of the middle and downstream piers progressed through a synchronous scouring region, a transition region, and a radical deviation region as the fluid velocity increased. The critical velocity from the synchronous scouring region to the transition region for the middle and downstream piers was the same, which linearly increased with pier spacing. The degree of deviation in the radical deviation region for the middle and downstream piers was dependent on the pier spacing. The critical velocity from the transition region to the radical deviation region for the middle pier increased with the pier spacing. When the spacing was larger than 11 times the diameter of a pier, the scour depths of the three-pier configuration were the same as for the single piers, which indicates the limit of inter-pier fluid–structure interaction. Finally, the data from this study are used to derive adjustment factors to predict the local scour depth around three piers.
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影响因子：
2.4
作者：
C. Lauchlan;B. Melville
通讯作者：
C. Lauchlan;B. Melville
影响因子：
2.4
作者：
A. Yanmaz;H. Altinbilek
通讯作者：
A. Yanmaz;H. Altinbilek
影响因子：
2.4
作者：
Rui Lança;C. Fael;R. Maia;J. P. Pêgo;A. Cardoso
通讯作者：
Rui Lança;C. Fael;R. Maia;J. P. Pêgo;A. Cardoso
影响因子：
2.4
作者：
A. Laird
通讯作者：
A. Laird
DOI：
10.1061/(asce)0733-9429(1990)116:10(1197
发表时间：
1990-10-01
期刊：
JOURNAL OF HYDRAULIC ENGINEERING-ASCE
影响因子：
--
作者：
DARGAHI, B
通讯作者：
DARGAHI, B