Effectiveness of urban distributed runoff model for discharge and water depth calculation in urban drainage pipe networks
作者机构：School of Water Resources and Hydropower EngineeringNorth China Electric Power UniversityBeijing102206China State Key Laboratory of Water Environment SimulationSchool of EnvironmentBeijing Normal UniversityBeijing100875China
出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)
年 卷 期：2024年第36卷第3期
页 面：582-591页
核心收录：
学科分类：070801[理学-固体地球物理学] 07[理学] 08[工学] 0708[理学-地球物理学] 0816[工学-测绘科学与技术] 0801[工学-力学（可授工学、理学学位）]
基 金：supported by the National Key Research and Development Program of China(Grant No.2022YFC3202002) the National Natural Science Foundation of China(Grant Nos.52025092,52209087 and 52379065)
主 题：Stormwater runoff water depth urban distributed runoff model urban drainage pipe networks urban land-use re-planning
摘 要：Effective urban land-use re-planning and the strategic arrangement of drainage pipe networks can significantly enhance urban flood defense *** at reducing the potential risks of urban flooding,this paper presents a straightforward and efficient approach to an urban distributed runoff model(UDRM).The model is developed to quantify the discharge and water depth within urban drainage pipe networks under varying rainfall intensities and land-use *** Nash efficiency coefficient of UDRM exceeds 0.9,which indicates its high computational efficiency and potential benefit in predicting urban *** prediction of drainage conditions under both current and re-planned land-use types is achieved by adopting different flood recurrence *** findings reveal that the re-planned land-use strategies could effectively diminish flood risk upstream of the drainage pipe network across 20-year and 50-year flood recurrence ***,in the case of extreme rainfall events(a 100-year flood recurrence),the re-planned land-use approach fell short of fulfilling the requirements necessary for flood disaster *** these instances,the adoption of larger-diameter drainage pipes becomes an essential requisite to satisfy drainage ***,the proposed UDRM effectively combines land-use information with pipeline data to give practical suggestions for pipeline modification and land-use optimization to combat urban ***,this methodology warrants further promotion in the field of urban re-planning.
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