摘要
下凹式绿地具有蓄渗雨水、削减洪峰流量、过滤水质和防止水土流失等优点 ,是城市雨洪利用的重要措施之一。对在设计暴雨条件下下凹式绿地的蓄渗、减洪效果进行了分析计算 ,结果表明 :在 1倍汇水面积的情况下 ,对于 10 ,5 0和 10 0年一遇的暴雨 ,下凹式绿地的降雨拦蓄率分别为 87.15 ,5 8.4 8和 5 0 .75 ;其减峰率分别为 71.0 4 ,4 6 .82和 4 1.5 2 ;蓄渗。
Sunken lawn have the advantage of storing and infiltrating the rainwater, cutting down flood flow and peak, filtrating water quality, preventing soil erosion and beautifying the environment, etc. It is one of effective measure of rainwater use in town. The effects of storage and infiltration is calculated and analyzed under the condition of designed storm. Results showed that it is very effective. It is suggested that the sunken lawn is adopted in program and construction of town.
出处
《中国农业大学学报》
CAS
CSCD
北大核心
2001年第6期53-58,共6页
Journal of China Agricultural University
关键词
下凹式绿地
设计暴雨
雨水蓄渗
雨洪利用
地面水
sunken lawn
design storm
rainwater storage and infiltration rainwater use
