摘要
城市内涝问题日益严重,海绵校园建设作为海绵城市建设的重要一环备受关注。为解决校园内涝问题,以郑州大学新校区为研究区,以解决校园内涝问题为立足点,利用暴雨洪水管理模型(SWMM)和无实测资料降雨径流模型参数率定方法,在不同设计暴雨情景下,模拟评估现状、3种单项(绿色屋顶、透水铺装、下凹式绿地),以及1种组合(绿色屋顶+透水铺装+下凹式绿地)海绵城市措施下的雨洪调蓄效果。研究结果表明:单项措施对校园路面雨洪调蓄有一定效果,洪峰流量和地表径流分别下降29.4%~67.1%和24.6%~62.0%,但不足以解决内涝问题;采用组合措施对校园雨洪调蓄有明显效果,洪峰流量和地表径流分别下降90.45%和86.5%,基本解决校园内涝问题,对校园建设有指导意义。
The problem of urban waterlogging is becoming more and more serious,and the construction of sponge campus has attracted much attention as an important part of the construction of sponge cities.In order to solve the problem of campus waterlogging,taking the new campus of Zhengzhou University as the research area,and using the storm flood management model(SWMM)and the parameter calibration method of rainfall runoff model without measured data,this paper simulates and evaluates the rainwater regulation and storage effect of sponge city measures under different design rainstorm situations in terms of the current situation,three kinds of single options(green roof,permeable pavement,concave green space)and one kind of combination measure(green roof+permeable pavement+concave green space).The study results show that a single measure has a certain effect on rainwater storage and storage on campus pavements.The peak flow and surface runoff decrease by 29.4%-67.1%and 24.6%-62.0%respectively,but it is not enough to solve the problem of waterlogging.The combination measure has obvious effect on the rain flood regulation and storage in campus,and the peak flow and surface runoff decreased by 90.45%and 86.5%respectively,which basically solves the problem of campus waterlogging and has guiding significance for campus construction.
作者
刘成帅
邬强
胡彩虹
姚依晨
徐源浩
陈游倩
Liu Chengshuai;Wu Qiang;Hu Caihong;Yao Yichen;Xu Yuanhao;Chen Youqian(School of Water Conservancy Engineering of Zhengzhou University,Zhengzhou 450001,China)
出处
《气象与环境科学》
2022年第6期59-66,共8页
Meteorological and Environmental Sciences
基金
国家自然科学基金重点项目(51739009)
国家自然科学基金(51979250)
国家重点研发计划(2016YFC040240203)。
