摘要
以深圳市西丽环保产业园为例,通过现场监测和雨洪管理模型(SWMM)模拟方法,分析海绵改造后产业园区的径流控制效果。结果表明,不同场次降雨中,雨水花园峰现时间延后12~40 min,且峰现时间延后作用为雨水花园>透水铺装,随着降雨历时增加,LID(低影响开发)设施的径流控制效果降低。海绵改造后,研究区年径流总量控制率达到73.9%,比改造前增加43.4%。通过分析,组合LID措施可以更大程度地减少径流系数、延迟峰现时间,更好地发挥海绵效益。
Taking Xili Environmental Conservation Industrial Park of Shenzhen City as an example,runoff control effect after sponge transformation was examined by field monitoring and simulation of Storm Water Management Model(SWMM).The results showed that the peak time of rainwater garden was delayed by 12~40 min in different rainfall events.The delayed effect of peak time indicated that rainwater garden was larger than permeable pavement.Along with increase of rainfall duration,the runoff control effect of lid facilities decreased.After sponge transformation,the control rate of total annual runoff in the study area reached 73.9%,43.4%higher than that before transformation.Combination of Low Impact Development measures could reduce runoff coefficient and delay peak time to a greater extent,so as to maximize benefits.
作者
景瑞瑛
卢巧慧
黄奕龙
郑妍妍
Jing Ruiying;Lu Qiaohui;Huang Yilong;Zheng Yanyan
出处
《中国水利》
2021年第5期43-45,39,共4页
China Water Resources
基金
深圳市水务发展专项资金项目(201826)。
关键词
海绵城市
产业园区
径流控制
透水铺装
雨水花园
sponge city
industrial park
runoff control
permeable pavement
rainwater garden
