基于SWMM模型的绿色屋顶雨洪控制与效益分析  

Stormwater Control and Benefit Analysis of Green Roof Based on SWMM Model

作　　者：王雷 张少松 梁景坤 马爱华 安麒 钱刘洋 WANG Lei;ZHANG Shao-song;LIANG Jing-kun;MAAi-hua;AN Qi;QIAN Liu-yang(Hebei University of Water Resources and Electric Engineering,Cangzhou 06100l,China;Hebei Key Laboratory of Geotechnical Engineering Safety and Deformation Control,Cangzhou 061001,China;Water Resources Automation and InformationApplication Technology Research and Development Center of Hebei College,Cangzhou 061001,China)

机构地区：[1]河北水利电力学院,河北沧州061001 [2]河北省岩土工程安全与变形控制重点实验室,河北沧州061001 [3]河北省高校水利自动化与信息化应用技术研发中心,河北沧州061001

出　　处：《水电能源科学》2023年第2期65-69,共5页Water Resources and Power

基　　金：2020年河北省高等学校自然科学研究青年基金项目(QN2020174);2020年度河北省水利科研与推广计划项目(2020-63);2021年度河北水利电力学院基本科研业务费项目(SYKY2111)。

摘　　要：水环境安全一直是困扰我国社会经济健康发展的重要问题,低影响开发技术在应对水环境安全问题方面具有良好的韧性。以沧州中欧绿色产业园为研究区域,建立该区域的暴雨雨洪模型和雨水资源利用效益化模型。研究发现,绿色屋顶对地面径流具有明显的控制作用,径流总量的削减率和控制率分别为56.31%、68.32%,峰值流量削减率为48.58%,对TP、TN、SS、COD四种污染物的控制率分别为72.92%、74.82%、74.44%、73.89%;随着降雨强度的提高,径流控制率、污染物浓度控制率降低,分别呈现显著的四次、五次幂函数负相关关系;经测算,绿色屋顶能够产生较好的经济效益和环境效益。Water environment safety has always been an important issue that plagues the healthy development of country’s social economy. Low-impact development technologies have good resilience in dealing with water environment safety issues. Taking Cangzhou China-Europe Green Industrial Park as the research object, the rainstorm flood model and the rainwater resource utilization benefit model were established. The study found that green roofs have an obvious control effect on ground runoff. The reduction rate and control rate of the total runoff are 56.31% and 68.32%, respectively, and the peak flow reduction rate is 48.58%. The control rate for pollutants of TP, TN, SS and COD is 72.92%, 74.82%, 74.44% and 73.89%, respectively. However, with the increase of rainfall intensity, the runoff control rate and the pollutant concentration control rate decreased, showing a significant negative correlation between the fourth and fifth power functions. After calculation, green roof can produce better economic and environmental benefits.

关 键 词：SWMM 绿色屋顶 控制率 经济效益 环境效益 

分 类 号：TV12[水利工程—水文学及水资源] TU992[建筑科学—市政工程]