摘要
滨海城市受台风风暴潮、上游洪水、暴雨、外江潮位等复合致灾因子的影响,洪涝灾害事件频发,洪水安全成为社会经济高质量发展的重要制约因素。为降低滨海城市面对洪涝灾害的脆弱性,以杭州市钱塘区下沙片为研究对象,考虑滨海城市复杂的下垫面地形因素,构建了能够模拟河道、管道和地表洪水演进的水动力学模型,经率定和验证后进行暴雨、外江潮位等复合致灾因子情景下的洪水淹没情分析,提出洪涝灾害防御措施和建议,提升洪水灾情预判和应急管理能力。
Because the coastal cities are jointly affected by compound disaster causing factors such as typhoon storm surge,upstream flood,rainstorm and tide level of outer river,the flood disasters occur frequently,and the flood safety has become an important constraint factor for the high-quality social and economic development.In order to improve the vulnerability of coastal cities to flood and waterlogging disasters,taking Xiasha District of Qiantang District,Hangzhou as the research object,a hydrodynamic model that can simulate the evolution of river,pipeline and surface floods is built by taking into account the complex topographic factors of the underlying surface of coastal cities.After calibration and verification,the model is used to analyze the flood inundation situation under the scenario of composite disaster causing factors such as rainstorm and tide level of outer river.The flood and waterlogging disaster prevention measures and suggestions are finally put forward to achieve the purpose of improving flood disaster prediction and emergency management ability.
作者
吴宗阳
吴晓翔
林源君
商华岭
WU Zongyang;WU Xiaoxiang;LIN Yuanjun;SHANG Hualing(Longyou Forestry and Water Resources Bureau,Longyou 324400,Zhejiang,China;Zhejiang Water Conservancy and Hydropower Engineering Quality and Safety Supervision and Management Center,Hangzhou 310012,Zhejiang,China;College of Hydrology and Water Resources,Hohai University,Nanjing 210024,Jiangsu,China)
出处
《水力发电》
CAS
2022年第12期22-27,47,共7页
Water Power
基金
国家重点研发计划项目(2019YFC0409000)
国家自然科学基金资助项目(52179011)
浙江省水利厅科技项目(RA1903)。
关键词
滨海城市
复合致灾因子
水动力学模型
洪水淹没
洪水模拟
浙江省
coastal city
compound disaster causing factor
hydrodynamic model
flood inundation
flood simulation
Zhejiang Province
