摘要
指出了渗透性能是衡量雨水花园运行能力的重要指标,其大小直接反映雨水花园的堵塞性问题。针对南京地区的径流特点和雨水水质,在选定雨水花园基质厚度配比的基础上,通过试验研究了模拟不同水平的进水浊度和进水频率下雨水花园运行,分析了其渗透系数的变化规律,探讨了进水浊度和进水频率与渗透系数的相关性。结果表明:雨水浊度值的增加和进水频率的增大都会使渗透系数变小;即浊度值越大,进水频率越大,雨水花园越容易发生堵塞。
Permeability is an important index to measure the operation ability and blocking problem of rainwater garden.This research is about the influence of turbidity and irrigation frequency on permeability coefficient of rainwater garden based on the determined substrate ratio and analysis of runoff characteristics and rainwater quality in Nanjing.Research shows that permeability coefficient decreases with increasing turbidity and irrigation frequency.And the higher they are,the easier the rain garden will be blocked.
作者
庹菁
曹世玮
马瑜蔚
Tuo Jing;Cao Shiwei;Ma Yuwei(College of Civil Engineering,Nanjing Forestry University,Nanjing,Jiangsu 210037,China)
出处
《绿色科技》
2020年第12期188-190,194,共4页
Journal of Green Science and Technology
基金
国家科技支撑计划项目(编号:2015BAL02B04)
南京林业大学2019年大学生实践创新训练计划项目(编号:2019NFUSPITP0463)。
关键词
雨水花园
渗透系数
浊度
进水频率
rain garden
permeability
turbidity
irrigation frequency
