摘要
在城市化进程中,城市面临着日益严重的雨洪和水质问题,海绵城市已成为解决城市水资源问题、改善生态环境、提高城市可持续性的重要策略。本文通过SWMM模拟分析了多种降雨条件对海绵城市小区雨水径流控制率的影响,得出以下结论:采用海绵改造后径流消减率处于18.7%~95.3%之间,径流控制率处于31.5%~96.3%之间,悬浮物(SS)消减率处于21.8%~97.5%之间。文中海绵城市小区的平均场降雨控制率为86.7%。随着降雨量的增加,海绵城市小区雨水径流控制效果的影响越差,当雨前干期超过6d,海绵城市小区雨水径流控制率达到90%以上。
In the process of urbanization,cities are facing increasingly serious problems of rainwater floods and water quality.Sponge City has become an important strategy to solve urban water problems,upgrade ecological environment and improve urban sustainability.In this paper,the SWMM simulation was used to analyze the influence of various rainfall conditions on the rainwater runoff control rate of the Sponge City community.The following conclusions were drawn:after the sponge transformation,the runoff reduction rate was between 18.7%and 95.3%,the runoff control rate was between 31.5%and 96.3%,and the suspended solids(SS)reduction rate was between 21.8%and 97.5%.The average rainfall control rate of the Sponge City community is 86.7%.With the increase of rainfall,the effect of rainwater runoff control community is worse in Sponge City.When the dry period before rain exceeds 6 days,the rainwater runoff control rate in Sponge City community reaches more than 90%.
作者
罗美丽
Luo Meii(Yunnan Jian'an Kunning Engineering Design Consulting Co.,Ltd.,Kunming,650300,Yunnan)
出处
《建设科技》
2023年第22期59-61,共3页
Construction Science and Technology
关键词
海绵城市
雨水径流
控制效果
Sponge City
rainwater runoff
control effect
