基于排水模型的城区雨水径流削减潜力分析  

An Analysis of Potential Reduction of Runoff by Reformation of Urban Surface Based on Storm Water Model

作　　者：张练[1] 王晓晨 赵新华[1] 

机构地区：[1]天津大学环境科学与工程学院,天津300072 [2]中国市政工程中南设计研究总院有限公司,武汉430010

出　　处：《中国农村水利水电》2015年第4期38-41,46,共5页China Rural Water and Hydropower

基　　金：国家自然科学基金项目(51308385)

摘　　要：应用InfoWorks ICM水力模型软件建立了天津市某大学新建校区生活区地表和雨水管网模型,评估了现状地表在雨水管网设计降雨重现期下的产汇流及积水状况。采用下凹式绿地、绿色屋面和渗透路面等3种低影响措施对现状下垫面进行改造,改善其透水性。结果表明,低影响措施开发了城区地表的径流削减潜力,不同降雨条件下,地表径流削减率达47%~48.6%,雨水管网流量负荷降低了近40%。研究成果可为低影响工程措施的建设提供参考。To evaluate the runoff and water-logging of a student dormitory region in a newly built campus in Tianjin ,a terrain model and a storm drainage system model were built with InfoWorks ICM storm water modeling software .Three LID （Low Impact Devel‐opment） approaches-sunken lawn ,green roof and pervious pavement were selected to reconstruct the surface of the region ,the anal‐ysis of the new modeling indicated that the total runoff decreased greatly .Under different rainfalls the reduction rate of runoff range from 47% to 48 .6% ,the flow of outfall decreased by forty percent .The research has set an example for some other LID projects .

关 键 词：排水模型 雨洪控制 下凹式绿地 绿色屋面 渗透路面 

分 类 号：TU99[建筑科学—市政工程]