大尺度无管流数据城区SWMM构建及模拟——Ⅱ.模型参数校验及暴雨径流模拟分析  

SWMM- based rainfall- runoff simulations in large- scale urban area with no pipeline- flow observations:Ⅱ:model calibration and analysis of rainfall- runoff simulations

作　　者：付潇然 王东[2,3] 栾清华 刘家宏[2] 王海潮[4] FU Xiaoran;WANG Dong;LUAN Qinghua;LIU Jiahong;WANG Haichao(College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China;State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources and Hydropower Research,Beijing 100038,China;School of Water Conservancy and Hydroelectric Power,Hebei University of Engineering,Handan 056038,China;China International Engineering Consulting Corporation,Beijing 100048,China)

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100038 [3]河北工程大学水利水电学院,河北邯郸056038 [4]中国国际工程咨询有限公司,北京100048

出　　处：《水科学进展》2020年第1期51-60,共10页Advances in Water Science

基　　金：国家重点研发计划资助项目(2016YFC0401401);国家自然科学基金资助项目(51739011)~~

摘　　要：目前,中国城区大多缺乏实测管道流量数据,给城市水文模型构建及精细化模拟带来了挑战。在北京亦庄经济开发核心区下垫面精细数字化的基础上,以典型点的最大径流深为验证要素,以实地踏勘为主、经验率定为辅,分别选取2012年"7·21"和2011年"6·23"两场典型大暴雨径流过程,完成了区域SWMM(Storm Water Management Model)模型的参数率定和验证;并就不同重现期设计暴雨下,不同典型用地子汇水区的产汇流响应特征及内涝交通拥堵风险进行了分析及评估。结果表明:随着重现期的增加,道路与交通设施用地对暴雨增幅的响应速率远高于公园绿地的响应速率,前者的内涝交通拥堵风险亦远高于后者;间接反映了不同下垫面条件造成产汇流响应的差异程度。相关成果可为区域城市洪涝管理与预警提供决策参考。At present,many cities in China are short of pipeline-flow observations,which leads to large challenges to construct urban hydrological models for detailed rainfall-runoff simulations. In this study,the core district of Yizhuang Economic Development Zone was selected as the study area. Based on the accurate digitalized land-surface data,field survey and empirical verification of urban storm process was carried out in terms of the maximum runoff depth at specific spots,and the SWMM model was calibrated and verified for the two typical storm events in July 21 st,2012 and June 23 rd,2011. Subsequently,the runoff response rate and traffic congestion risk of design rainstorms in different return periods were analyzed and evaluated in sub-catchments with various land-uses. The results show that as return period increases,street and transportation land-uses have a higher response rate to the increase of rainstorm than park and green land-uses do,and the former has a higher risk of waterlogging-triggered traffic congestion than the latter. This finding indirectly reflects the variability of runoff response rates under different land-surface conditions. This study is potential to provide decision-makers with valuable suggestions on effective local urban-flood control and early warning.

关 键 词：无管流数据 参数校验 设计暴雨 径流响应 交通影响评估 

分 类 号：P333.2[天文地球—水文科学]