基于MIKE21的河南省东安透水桩坝水流数值模拟  

Numerical simulation of water flow of Dong’an permeable pile dike in Henan Province based on MIKE21

作　　者：栗铭阳 张宝森[1,2] 方国华[3] 汪自力[1,2] LI Mingyang;ZHANG Baosen;FANG Guohua;WANG Zili(Yellow River Hydraulic Research Institute,Yellow River Conservancy Commission,Zhengzhou 450003;Research Center of Levee Safety and Disaster Prevention,Ministry of Water Resources,Zhengzhou 450003;School of Water Conservancy and Hydropower,Hohai University,Nanjing 210098)

机构地区：[1]黄河水利委员会黄河水利科学研究院,郑州450003 [2]水利部堤防安全与病害防治工程技术研究中心,郑州450003 [3]河海大学水利水电学院,南京210098

出　　处：《中国防汛抗旱》2022年第10期67-72,共6页China Flood & Drought Management

基　　金：推转基金项目(HKY-YF-2022-05);水利部堤防安全与病害防治工程技术研究中心开放课题基金资助项目(LSDP202107)。

摘　　要：透水桩坝作为新型河道整治建筑物,因其独特的缓流落淤效果而作为不抢险坝在黄河下游得以应用。不同透水桩坝的透水率在修建时已经确定,但在实际运行过程中,透水桩坝在复杂的水流情况下出现了不同程度的磨损、位移,造成了桩坝与设计工况出入较大。以东安透水桩坝工程为研究对象,根据花园口水文站水文资料,利用MIKE21 FM软件构建了东安工程二维水动力模型,对2021年1月1日至4月12日现场进行模拟,并利用4月12日实测资料对模型进行验证。结果表明:模拟断面流速与实测断面流速最大误差为8.55%,模拟结果比较理想;MIKE21 FM软件对东安工程河道水动力模拟有较好的适用性。研究成果可为透水桩坝的安全运行提供参考。As a new type of river regulation structure,permeable pile dikes has been applied in the lower reaches of the Yellow River as a non-rescue dikes because of its unique effect of slow flow and sedimentation.The permeability of different permeable pile dikes has been determined during construction.However,in the actual operation process,the permeable pile dikes have been worn and displaces to varying degrees under complex water flow,resulting in a large difference between the pile dikes and the design working condition.Therefore,taking Dong’an Permeable Pile Dike project as the research object,according to the hydrological data of Huayuankou station,a two-dimensional hydrodynamic model of Dong’an project is constructed by using MIKE21 FM software for the simulation from January 1 to April 12,2021,and the measured data on April 12 were used to verify the model.The results show that the maximum error between the simulated section velocity and the measured section velocity is about 8.55%,and the simulation results are satisfactory;MIKE21 FM software has good applicability for river hydrodynamic simulation of Dong’an project.The research results can provide reference for the safe operation of permeable pile dikes.

关 键 词：东安 透水桩坝 缓流落淤 数值模拟 MIKE21 FM 

分 类 号：TV133[水利工程—水力学及河流动力学] TV882.1