摘要
以深圳市某典型区域为研究对象,基于暴雨洪水管理模型(storm water management model,SWMM)和二维水动力模型LISFLOOD-FP构建了研究区水文水动力耦合模型,模拟了典型暴雨下研究区的内涝时空演进过程,结合设计暴雨和设计低影响开发(low impact development,LID)情景,探讨了不同重现期设计暴雨情景下研究区内涝积水分布,分析了不同LID布设措施对内涝积水深度的削减效果。结果表明:典型暴雨情况下研究区最大模拟积水深度为0.57 m,与实测内涝验证数据基本相符,模型能较好地适应研究区的内涝模拟。随着设计降雨重现期的增大,研究区的最大内涝积水深度和积水范围也逐渐增大,不同LID设施对内涝积水的削减效果都逐渐减弱,在100 a重现期时仅有约10%的削减率,且组合式LID和绿色屋顶的内涝积水深度削减率大于透水道路和下沉式绿地。
This study selects a typical area of Shenzhen as the study object,and constructs a hydrologicalhydrodynamic coupling model based on the storm water management model(SWMM)and two-dimensional hydrodynamic LISFLOOD-FP model.The spatial-temporal evolution process of waterlogging in the study area is simulated under typical rainstorms.Combined with designed low impact development(LID)scenarios,the distribution of waterlogging water in the study area is discussed under designed rainstorm scenarios with different recurrence periods,and the effect of different LID layout measures on the depth reduction of waterlogging is analysed.The results show that the maximum simulated water depth in the study area is 0.57 m under typical rainstorm conditions,which is basically consistent with the measured waterlogging verification data,and the model can better suit the waterlogging simulation in the study area.With the increase of the designed rainfall return period,the maximum depth and scope of waterlogging in the study area also increase gradually.The reduction effect of different LID facilities on waterlogging is gradually weakened,the reduction rate of waterlogging depth is only about 10% for the rainfall with the 100-year return period,and the reduction rate of waterlogging depth of green roof and combined LID is greater than that of permeable road and sunken green space.This study can provide some validation and reference for sponge city construction and urban waterlogging control.
作者
邓成
夏军
佘敦先
周延
DENG Cheng;XIA Jun;SHE Dunxian;ZHOU Yan(State Key Laboratory of Water Resources Engineering and Management,Wuhan University,Wuhan 430072,China;Hubei Key Laboratory of Water System Science for Sponge City Construction,Wuhan University,Wuhan 430072,China)
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2023年第8期912-921,共10页
Engineering Journal of Wuhan University
基金
中国科学院战略性先导科技专项项目(编号:XDA23040304)
国家自然科学基金重大项目(编号:41890823)。
作者简介
邓成(2001-),男,硕士研究生,主要从事城市内涝数值模拟研究,E-mail:dengcheng@whu.edu.cn;通讯作者:夏军(1954-),男,中国科学院院士,主要从事水文水资源研究,E-mail:xiajun666@whu.edu.cn。
