西北水电Issue(1)：44-50,7.DOI:10.3969/j.issn.1006-2610.2025.01.006
基于洪水预报模型的双溪口水库下游洪水演进模拟
Simulation of Flood Routing Downstream of Shuangxikou Reservoir Based on Flood Forecasting Model
摘要
Abstract
In order to accurately simulate the flood response risk situation downstream of Shuangxikou Reservoir under different intensities of rainfall,based on data such as river channels and sections,storm rainfall-runoff,two-dimensional terrain data,and land use types,the Xin'anjiang model and the GAST model are coupled to construct a flood simulation model to simulate the flood inundation process downstream of Shuangxikou Reservoir,and the empirical analysis method is used to evaluate the flood risk levels of the inundated areas.The results show that the total flood inundation areas under the recurrence periods of once every 5 years,once every 10 years,once every 20 years,once every 50 years,and once every 100 years are 1.41 km2,1.51 km2,1.59 km2,1.67 km2,and 2.03 km2 respectively,showing a gradually increasing trend.With the increase of the rainfall recurrence period,the proportion of the area of the low-risk zone decreases from 71.33%in the 5-year recurrence period to 65.61%in the 100-year recurrence period,the proportion of the area of the medium-risk zone increases from 0.51%in the 5-year recurrence period to 1.90%in the 100-year recurrence period,and the propor-tion of the area of the high-risk zone increases from 28.16%in the 5-year recurrence period to 32.49%in the 100-year recurrence peri-od.In addition,about 70%of the area is less threatened by floods,while towns or cultivated lands with low-lying and relatively flat ter-rain are more threatened by floods.The simulation results can provide important support for the prevention of flood disasters downstream of Shuangxikou Reservoir and the formulation of reasonable and effective emergency plans for safety management.关键词
洪水预报/洪水淹没模拟/风险等级评估/水库流域Key words
Flood Forecasting/Flood Inundation Simulation/Risk Level Assessment/Reservoir Basin分类
水利科学引用本文复制引用
吴焕苗,周敏,周庆诗,杨波,赵博..基于洪水预报模型的双溪口水库下游洪水演进模拟[J].西北水电,2025,(1):44-50,7.基金项目
国家重点研发计划(2024YFC3012403) （2024YFC3012403）
陕西省联合基金重点项目(2022JC-LHJJ-09) （2022JC-LHJJ-09）
