[1]张飞,朱丽丽,陈青青,等.MIKE21模型在桥墩壅水模拟分析中的应用[J].江苏水利,2025,(03):47-52.
 ZHANG Fei,ZHU Lili,CHEN Qingqing,et al.Application of MIKE 21 model in simulation analysis of bridge pier backwater[J].JIANGSU WATER RESOURCES,2025,(03):47-52.
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MIKE21模型在桥墩壅水模拟分析中的应用()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2025年03期
页码:
47-52
栏目:
水利工程管理
出版日期:
2025-03-15

文章信息/Info

Title:
Application of MIKE 21 model in simulation analysis of bridge pier backwater
文章编号:
1007-7839(2025)03-0047-0006
作者:
张飞朱丽丽陈青青王邦玮王洁
(南京市水利规划设计院股份有限公司,江苏 南京 210006)
Author(s):
ZHANG Fei ZHU Lili CHEN Qingqing WANG Bangwei WANG Jie
(Nanjing Water Conservancy Planning and Design Institute Co., Ltd., Nanjing 210006, China)
关键词:
桥墩壅水MIKE21模型数值模拟白马河
Keywords:
bridge pier backwater MIKE21 model numerical simulation Baima River
分类号:
TV698
文献标志码:
B
摘要:
为分析桥墩对河道行洪安全的影响,以白马河上2座新建桥梁为研究对象,利用MIKE21构建水动力模型,对工程段河道水位和流场进行数值模拟,对比分析建桥前后水位和流场的变化情况。结果表明:桥墩引起的上游水位壅高值较低,河道流场变化主要局限于桥梁附近,流速有所增大,流向变化较小。总体来说,建桥前后工程河段整体流态变化不大,增大桥梁跨径能够进一步减轻桥墩对河道行洪的影响,分析结果可为桥梁工程设计和防洪评价工作提供技术参考。
Abstract:
In order to analyze the impact of bridge piers on river flood safety, the two newly built bridges on Baima river was taken as an example. MIKE21 FM hydrodynamic model was established to simulate the water level and flow field of river, the changes in water level and flow field before and after bridge construction was comparative analyzed. The results showed that the backwater height of the upstream water level caused by the bridge piers was relatively low. The change of the river flow field was mainly limited to the vicinity of the bridge. The flow velocity increased to some extent, while the change in the flow direction was relatively small. Overall, the changes in river flow regime were small before and after bridge construction. Increasing the bridge span can further reduce the impact of bridge piers on river flood discharge. The analysis results can provide technical references for bridge engineering design and flood control assessment.

参考文献/References:

[1]毛北平,钟艳红,肖潇. 基于实测资料的桥墩壅水计算经验公式比较研究[J]. 人民长江,2021,52(12):157-161.
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[7]何双. 基于ORD的河道BIM设计与MIKE21的联合应用[J]. 水利规划与设计,2020(11):144-147.
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相似文献/References:

[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.
 XUE Wanyun,ZHAO Yong,YU Lei,et al.Experimental study on backwater resistance of bridge piers in plain river[J].JIANGSU WATER RESOURCES,2021,(03):1.

备注/Memo

备注/Memo:
收稿日期:2024-11-01
作者简介:张飞(1991—),男,工程师,硕士,主要从事水利规划工作。E-mail:616389455@qq.com
更新日期/Last Update: 2025-03-15