深圳新城公园低影响开发改造工程效果  

Effect of low impact development retrofitting in Shenzhen Xincheng Park

作　　者：田坤 宫永伟[1] 陈世杰 任心欣[3] 李俊奇[1] 王文亮[2] TIAN Kun;GONG Yongwei;CHEN Shijie;REN Xinxin;LI Junqi;WANG Wenliang(Key Laboratory of Urban Stormwater System and Water Environment(Ministry of Education),Beijing University of Civil Engineering and Architecture,Beijing 100044,P.R.China;Institute of Sponge City,Beijing University of Civil Engineering and Architecture,Beijing 100044,P.R.China;Shenzhen Urban Planning and Design Institute Co.Ltd.,Shenzhen 518049,Guangdong Province,P.R.China)

机构地区：[1]北京建筑大学城市雨水系统与水环境教育部重点实验室,北京100044 [2]北京建筑大学海绵城市研究院,北京100044 [3]深圳市城市规划设计研究院有限公司,广东深圳518049

出　　处：《深圳大学学报（理工版）》2023年第3期370-378,共9页Journal of Shenzhen University(Science and Engineering)

基　　金：国家自然科学基金资助项目(51879004);市属高校基本科研业务费资助项目(X20145)。

摘　　要：暴雨管理模型用于评价中国广东省深圳市新城公园低影响开发改造工程的径流控制效果.采用实测数据进行模型参数率定与验证,研究不同降雨条件下的场次径流总量削减率、径流峰值削减率、峰现时刻延后时间、年径流总量控制率及影响因素.模拟结果表明,当以2~50 a一遇的短历时设计降雨事件进行模拟时,改造后的径流过程线相对平缓,径流峰值削减率为30.4%~47.2%,峰现时刻延后了17~26 min;当以监测场次降雨事件和连续多年降雨事件作为模型输入时,改造后的径流总量控制率分别为70.7%~94.8%和79.8%.研究表明,深圳新城公园低影响开发改造工程对高频降雨条件下产生的径流总量、径流峰值具有良好的削减作用,对低频降雨条件下产生的径流总量及峰值削减效果有限,新城公园低影响开发设施长期运行工况下的雨水径流控制效果依然显著.The storm water management model(SWMM)was used to evaluate the stormwater control effect of the low impact development(LID)retrofitting of the Xincheng Park in Shenzhen,Guangdong Province,China.The calibration and validation of the model parameters were carried out using the measured data.The control rate of individual rainfall runoff events,the peak flow control rate,the peak time and the volume capture ratio of annual rainfall runoff volume as well as the related influence factors were analyzed under the different conditions of rainfall.The peak flow control rate reached from 30.4%to 47.2%,and the peak time delayed from 17 to 26 min with a relatively smooth runoff process line after retrofitting for the different return-period rainfall events.For monitored rainfall events and continuous rainfall events,the volume capture ratio of annual rainfall runoff volume after retrofitting reached from 70.7%to 94.8%,and 79.8%,respectively,in two situations.The results indicate that LID retrofitting has good performance in reduction of runoff and peak flow in high return-period rainfall events,while the reduction effect on the total and peak runoff generated under low-frequency rainfall conditions is limited.The stormwater runoff control effect of low impact development retrofitting facilities in Xincheng Park is still significant under long-term operating conditions.

关 键 词：海绵城市 雨水径流 雨水管理 低影响开发 暴雨管理模型 率定验证 

分 类 号：TV122.1[水利工程—水文学及水资源] TU992[建筑科学—市政工程]