基于Mike Flood模型的丘陵地区叉网式河流洪水风险分析  

Flood routing risk analysis of fork network river in hilly region based on mike flood model

作　　者：魏博文[1,2] 陈良捷 程颖新 姚斯洋[1] 金戎 WEI Bowen;CHEN Liangjie;CHENG Yingxin;YAO Siyang;JIN Rong(School of Civil Engineering and Architecture,Nanchang University,Nanchang 330031,China;National Key Laboratory of Water Resources and Hydraulic Engineering Science,Nanjing 210098,China;Hydrographic Bureau of Jiujiang City,Jiujiang 332000,China)

机构地区：[1]南昌大学建筑工程学院,江西南昌330031 [2]水文水资源与水利工程科学国家重点实验室,江苏南京210098 [3]九江市水文局,江西九江332000

出　　处：《南昌大学学报（工科版）》2019年第1期45-50,共6页Journal of Nanchang University(Engineering & Technology)

基　　金：国家自然科学基金资助项目(51779115;51669013;51569014)

摘　　要：针对丘陵地区叉网式河流洪水因地形地势复杂和民房散乱等因素引起的控制管理难度较大且居民生命财产安全易受到威胁等问题,以江西省修河郭家滩至安坪港段为研究对象,基于Mike Flood模型将Mike11一维河道模型和Mike21二维洪泛区模型进行动态耦合,对实际洪水在研究区的演进过程进行数值仿真模拟,以及计算出不同频率设计洪水条件下研究区行洪过程和淹没范围,分析可能受灾地区的淹没程度及数种风险要素。结果表明:文中所建模型较好地模拟丘陵地区叉网式河流在5种不同频率下的洪水演进过程,有效预测了相应频率降雨下洪水的淹没范围及流态等情况,可为丘陵地区的洪水风险预报和紧急避洪转移工作提供决策依据和技术支撑。For the knotty problems of fork network river floods in hilly region due to complex topography and terrain,scattered houses and other factors that make it difficult to manage and keep lives and property of residents safe from threats,this paper uses the Guojiatan-Anping section of Xiuhe River in Jiangxi Province as the research object,based on the Mike Flood model to dynamically couple the Mike11 one-dimensional river model and the Mike21 two-dimensional floodplain model,It simulated numerical simulation of the actual flood process in the study area and simulated the study area under different frequency design flood conditions to analyzethe flooded areas and several risk factors.The results show that the model can simulate the evolution process of floods in the study area quickly and accurately and can better indicate the hazardous areas and predict flood disasters,and provide decision basis and technologysupportfor flood risk forecasting and emergency flood avoidance.

关 键 词：丘陵地区 叉网式河流 MIKE FLOOD 数值模拟 洪水风险 

分 类 号：P33[天文地球—水文科学] TV121[水利工程—水文学及水资源]