考虑有效不透水下垫面的城市雨洪模拟模型——Ⅰ.模型原理与模型构建  

Development of an urban stormwater model considering effective impervious surface:Ⅰ:theory and development of model

作　　者：周宏[1,2] 刘俊[1,2] 高成[1,2] 周毅[3] 胡尊乐[4] 徐向阳 樊金璐[1] ZHOU Hong;LIU Jun;GAO Cheng;ZHOU Yi;HU Zunle;XU Xiangyang;FAN Jinlu(College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China;Institute of Water Science and Technology,Hohai University,Nanjing 211106,China;Jiangsu Province Hydrology and Water Resources Investigation Bureau,Nanjing 210029,China;Changzhou Hydrology and Water ResourcesInvestigation Bureau of Jiangsu Province,Changzhou 213022,China)

机构地区：[1]河海大学水文水资源学院,江苏南京210098 [2]河海大学水科学研究院,江苏南京211106 [3]江苏省水文水资源勘测局,江苏南京210029 [4]江苏省水文水资源勘测局常州分局,江苏常州213022

出　　处：《水科学进展》2022年第3期474-484,共11页Advances in Water Science

基　　金：国家重点研发计划资助项目(2018YFC0407201);中英联合科学创新基金资助项目(UUFRIP_100051)。

摘　　要：为满足新形势下雨洪管理实践的需求,揭示有效不透水下垫面对城市水文过程的影响,需研发考虑有效不透水下垫面的城市雨洪模拟模型。将不透水下垫面分为道路和屋顶,综合运用地理信息系统、城市雨洪模型等技术手段,基于不同分类属性分步确定有效不透水面积;考虑模型复杂性、建模数据可用性和模型预测能力,确定模型结构。区分有效不透水下垫面和非有效不透水下垫面产汇流过程,将具有高度异质性的城市下垫面离散成具有均匀或准均匀特性的子汇水区,考虑不同下垫面各子汇水区内部及子汇水区之间汇流路径,采用不同的产汇流计算方法,构建了精细模拟模型,可为城市洪涝防治及海绵城市建设提供技术支撑。To meet the requirements of current stormwater management practices,a model focusing on effective impervious surface and its influence on urban hydrological processes should be developed.Therefore,a model structure was developed based on model complexity,data availability,and prediction capability.The highly heterogeneous urban surface was discretized into subcatchments with uniform or“quasi-uniform”characteristics.Different hydrological calculation methods were used to develop a model that can explicitly distinguish the water generation and concentration processes of effective and non-effective impervious surfaces by considering the flow paths within and between subcatchments of different surfaces.This refined stormwater model can provide technical support for urban flood control and sponge city construction.

关 键 词：城市雨洪模型 有效不透水面积 总不透水面积 城市产汇流 城市水文学 

分 类 号：P333.2[天文地球—水文科学]