天津市杨庄水库“2024.8.10”暴雨洪水复盘分析  

Analysis of"2024.8.10"rainstorm flood in Yangzhuang Reservoir of Tianjin City

作　　者：尹雅清 刘桓语 李匡[3,4] 刘成荣 赵英虎 李亭 张丽伟 YIN Yaqing;LIU Huanyu;LI Kuang;LIU Chengrong;ZHAO Yinghu;LI Ting;ZHANG Liwei(Tianjin Water Engineering Operation and Dispatching Center,Tianjin 300074;College of Hydrology and Water Resources,Hohai University,Nanjing 210098;China Institute of Water Resources and Hydropower Research,Beijing 100038;Research Center on Flood and Drought Disaster Prevention Reduction of the Ministry of Water Resources(Flood and Drought Disaster Defense Center),Beijing 100038;College of Surveying,Mapping and Geography,North China University of Water Resources and Electric Power,Zhengzhou 450046)

机构地区：[1]天津市水务工程运行调度中心,天津300074 [2]河海大学水文水资源学院,南京210098 [3]中国水利水电科学研究院,北京100038 [4]水利部防洪抗旱减灾工程技术研究中心(水旱灾害防御中心),北京100038 [5]华北水利水电大学测绘与地理学院,郑州450046

出　　处：《中国防汛抗旱》2025年第4期63-69,共7页China Flood & Drought Management

基　　金：国家重点研发计划项目(2023WFC203200);中国水利水电科学研究院十四五“五大人才”计划项目(WHO1458032021);天津市防洪调度应急指挥平台建设项目(JZ120205A0042024)。

摘　　要：2024年8月9—10日,泃河流域发生短时大暴雨过程,杨庄水库洪峰流量达到历史最大1100 m^(3)/s。基于中国山洪水文模型(China Flash Flood Hydrological Model,CNFF)、IFMS/Urban(IWHR-Integrated Flood Modeling System)构建水文、水动力模型复盘模拟了暴雨洪涝过程。结果表明:降雨重现期20~50 a,入库洪峰流量重现期10~20 a,最大下泄流量500 m^(3)/s;洪水调度有效削减了上游洪峰超50%,未出现最大出库流量与洪峰遭遇叠加的情况,充分发挥了杨庄水库的防洪作用;河道洪水分析、地面淹没分析模拟与水文观测、现场调研基本吻合。建议汛期水库结合天气预报尽量采用预泄手段,提前降低水库水位,泄流控制在300 m^(3)/s及以下。From August 9 to 10 of 2024,a short-term heavy rainstorm occurred in the Juhe River,and the flood peak flow of Yangzhuang Reservoir in Tianjin City reached the historical maximum of 1100 m^(3)/s.In this paper,based on the analysis of the characteristics of the rainstorm and flood characteristics,the hydrological and hydrodynamic models are constructed based on CNFF and IFMS/Urbans to simulate the rainstorm and flood process.The results show that:the return period of rainfall is 20~50 years,the return period of flood peak flow is 10~20 years,and the maximum discharge flow is 500 m^(3)/s;The flood dispatching process effectively reduced the upstream flood peak by more than 50%,and there was no superposition of the maximum outflow and the flood peak,which gave full play to the flood control role of Yangzhuang Reservoir;River flood analysis and ground inundation analysis simulation are basically consistent with hydrological observation and field investigation.It is suggested that the reservoir should adopt the pre-discharge method in combination with the weather forecast during flood seasons,reduce the water level of the reservoir in advance,and control the discharge as far as possible at 300 m^(3)/s and below.The research results can provide reference for flood forecasting and flood operation of Yangzhuang Reservoir.

关 键 词：杨庄水库 暴雨洪水 中国山洪水文模型 IFMS/Urbans 复盘分析 天津市 

分 类 号：TV122[水利工程—水文学及水资源] TV877