响应曲面法分析城市下凹式绿地渗蓄效果及结构参数  

On Infiltration Storage and Structure Parameter of Recessed Green Belt by Response Surface Method

作　　者：吴晓涛[1] 刘思佳[1] 陈书怡[1] 徐冉[1] 

机构地区：[1]同济大学环境科学与工程学院,上海200092

出　　处：《浙江水利水电专科学校学报》2013年第1期33-37,共5页Journal of Zhejiang Water Conservancy and Hydropower College

摘　　要：以上海浦东新区为实例,从绿地结构差异的不同角度,通过响应曲面法(RSM)建立了下凹式绿地设计参数的数学模型,分析了其对雨水径流调蓄的影响.结果表明:绿地面积比例(f)应大于25%,f越大,雨水入渗率越大;下凹深度(△h)宜选择0.2～0.3 m,一定范围内增加下凹深度可增加入渗效果;绿地土壤入渗速率(K)越大越好;P一般采用1～2 a,但为增加下凹式绿地的建设性价比,宜考虑P=10 a、P=20 a的强降雨情况.The mathematical model of recessed green space parameter is set up by response surface method （RSM） accord- ing to different green space structure and its impact on rainfall runoff regulation, combined with example analysis of Shang- hai Pudong New Area. The results show that the greenbelt area ratio （f） should be greater than 25% , the greater f, the higher rate of rainwater infiltration; and the concave depth （/k h） should within 0.2 -0.3 m, the deeper concave depth to a certain extent, the better infiltration effect; Green land soil infiltration rate （K） the bigger the better; while P within 1 - 2 a. It is better to take heavy rainfall when P = 10 a or P = 20 a into consideration, in order to increase the ratio of concave type of green space construction.

关 键 词：下凹式绿地 雨水渗蓄 响应曲面法 

分 类 号：TV213.9[水利工程—水文学及水资源]