基于HEC-RAS对阿什河流域洪水模拟及制作洪水淹没图  

Flood Simulation and Flood Inundation Map Making in Ashi River Basin Based on HEC-RAS

作　　者：王宁 孙颖娜[1,2] 胡金辉 WANG Ning;SUN Ying-na;HU Jin-hui(Heilongjiang University College of Water Conservancy and Hydropower,Harbin 150080,China;Heilongjiang University Joint Laboratory of Hydrology and Hydraulic Engineering in Cold Regions of China and Russia,Harbin 150080,China)

机构地区：[1]黑龙江大学水利电力学院,哈尔滨150080 [2]黑龙江大学中俄寒区水文和水利工程联合实验室,哈尔滨150080

出　　处：《水利科技与经济》2023年第4期94-98,共5页Water Conservancy Science and Technology and Economy

摘　　要：阿什河流域洪水灾害事件频发,通过HEC-RAS软件,对研究区进行洪水模拟及制作洪水淹没图,既丰富中小型流域洪水研究区领域,又对当地防灾减灾和风险控制具有重要的指导意义。通过对不同重现期洪水模拟,得到5年、10年、20年、50年一遇洪水淹没最大水深、最大流速等,表明流域在河道拐角处洪水淹没水深一般偏大,在河道拐角前洪水流速会增加;并结合arcGIS等绘图工具,制作研究区洪水淹没图,丰富我国不同地区中小型流域洪水淹没图。Ashi river basin has frequent flood disasters.This paper mainly uses HEC-RAS software to simulate the flood in the study area and make flood inundation map,which not only enriches the blank field of the flood study area in small and medium-sized basins,but also has important guiding significance for local disaster prevention and mitigation and risk control.Through the flood simulation of different return periods,the maximum submergence depth and maximum flow velocity of 5-year,10-year,20-year and 50-year floods are obtained.It is found that the flood submergence depth of the basin at the river corner is generally large,and the flood flow velocity before the river corner will increase.Subsequently,flood inundation map of the study area was prepared with arcGIS and other mapping tools,which enriched flood inundation map of small and medium-sized basins in different regions of China.

关 键 词：洪水 HEC-RAS 流域 洪水模拟 

分 类 号：TV122[水利工程—水文学及水资源]