[1]薛万云,赵 勇,俞 雷,等.平原河道桥墩群阻水壅高试验研究[J].江苏水利,2021,(10):1-3.
　XUE Wanyun,ZHAO Yong,YU Lei,et al.Experimental study on backwater resistance of bridge piers in plain river[J].JIANGSU WATER RESOURCES,2021,(10):1-3.
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平原河道桥墩群阻水壅高试验研究()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2021年10期
页码:
1-3
栏目:
水文水资源
出版日期:
2021-12-15

文章信息/Info

Title:
Experimental study on backwater resistance of bridge piers in plain river
文章编号:
1007-7839(2021)10-0001-03
作者:
薛万云1; 赵 勇2; 俞 雷1; 吴修锋1; 郭 宁2; 吴时强1
(1.南京水利科学研究院水文水资源与水利工程科学国家重点实验室,江苏 南京 210029; 2.江苏省水利厅,江苏 南京 210029)
Author(s):
XUE Wanyun1; ZHAO Yong2; YU Lei1; WU Xiufeng1; GUO Ning2; WU Shiqiang1
(1.Key laboratory of Water Resource and Hydraulic Engineering,Nanjing Hydraulic Research Institute,Nanjing 210029,China; 2.Jiangsu Provincal Department of Water Resources,Nanjing 210029,China)
关键词:
壅水;  桥墩群;  试验;  阻水
Keywords:
backwater;  bridge piers;  experiment;  water blocking
分类号:
TV131.65
文献标志码:
B
摘要:
以南京秦淮新河为参考原型,建立河道桥群概化试验模型,定量研究平原河道桥群阻水叠加效应。试验结果表明:上游水流受桥墩阻水影响,水位壅高明显,壅水高度随桥墩数量的增加而增大,壅高范围随着桥墩数量的增多而延长; 对于概化河道(流量1 000 m3/s,流速2.5 m/s,阻水率6%),河道中心线最大壅水高度36 cm,壅水范围150 m; 在桥梁群上游150 m位置处,6座桥梁组成的桥梁群引起的壅高值为单座桥梁壅高值的1.5倍。研究成果对评估桥梁等涉水建筑物引起的阻水影响具有参考意义。
Abstract:
Taking the new Qinhuai River in Nanjing as a reference prototype,generalized test model of bridge group was established to quantitatively study water blocking superposition effect of river bridge group in plain river. The experimental results showed that the upstream water flow was affected by water blocking of bridge piers,and the water level raised more obviously. The water level increased with pier number,and the range of backwater height extended with pier number. For the generalized channel(flow rate 1000 m3/s,flow velocity 2.5m/s,water blocking rate 6%),the maximum backwater height of the river center line was 36cm,and the backwater range was 150m. At 150m upstream of the bridge group,the height of the bridge group composed of six bridges was 1.5 times the height of the single bridge. The research results could have important reference significance for evaluating the impact of water blocking caused by water-related buildings such as bridges.

参考文献/References:

[1] 耿艳芬,王志力. 桥渡对河道水流影响的二维无结构网格模型[J]. 水利水运工程学报,2008(4):78-83.
[2] 拾兵,贺如泓,于诰方. 斜交桥渡的壅水及设计计算[J]. 水科学进展,2001,12(2):201-205.
[3] 李付军,张佰战,戴荣尧. 桥下壅水高度计算方法的理论分析[J]. 铁道建筑,2009(6):31-33.
[4] HONG Y M,CHANG M L,LIN H C,et al. Experimental Study on Clear Water Scour around Bridge Piers[J]. Applied Mechanics and Materials,2012,121:162-166.
[5] JAIN S C,FISCHER E E. Scour around bridge piers at high flow velocities[J]. Journal of the Hydraulics Division,1980,106(11):1827-1842.
[6] CHRISOHOIDES A,SOTIROPOULOS F,STURM T W. Coherent structures in flat-bed about-ment flow:computational fluid dynamics simulations and experiments[J]. Journal of Hydraulic Engineering,2003,129(3):177-196.
[7] BRIAUD J L,CHEN H C,WANG J. Pier and contraction scour in cohesive soils[M]. Washington D C:National Cooperative Highway Project:Transportation Research Board,2004.
[8] SALAHELDIN T M,IMRAN J,HANIF C M. Numerical modeling of three-dimensional Flow field around circular piers[J]. Journal of Hydraulic Engineering,2004,130(2):91-100.
[9] 解鸣晓,张玮. 桩墩影响下的水动力数值模拟[J]. 水利水电科技进展,2008,28(3):20-24.
[10] GAMAL A A,ABOUZEID H I,MOHAMED,et al. 3-D Numerical Simulation of Flow and Clear Watersour by Interaction between Bridge Piers[C]//Tenth International Water Technology Conference. Alexandria,Egypt,2006:899-915.

备注/Memo

备注/Memo:
收稿日期:2021-03-23
基金项目:江苏省水利科技项目(2016019)
作者简介:薛万云(1986—),男,高级工程师,博士,主要从事水力学及河流动力学方面研究工作。E-mail:wyxue@nhri.cn
更新日期/Last Update: 2021-11-17