低影响开发对城市内涝节点雨洪控制效果研究——不同降雨特性下的情景模拟

被引：19

作者：

潘文斌

柯锦燕

郑鹏

占昕

机构：

[1] 不详

[2] 福州大学环境与资源学院

[3] 不详

来源：

中国环境科学 | 2018年 / 07期

基金：

国家重点研发计划;

关键词：

低影响开发; PCSWMM模型; 设计暴雨; 雨洪控制;

D O I：

10.19674/j.cnki.issn1000-6923.2018.0264

中图分类号：

TU992 [排水工程（沟渠工程、下水道工程）];

学科分类号：

0815 ;

摘要：

以中国福建省福州市晋安区解放溪流域高密度居民住宅区为例,针对不同降雨重现期、降雨历时和雨峰系数的降雨情景,利用PCSWMM模型模拟该地区的雨洪情况,并运用模型的低影响开发(LID)模块,研究7种不同LID用地布局情景对研究区内涝节点的雨洪控制效果.情景模拟结果表明:在不同降雨情景下,各LID用地布局情景会使节点的洪峰流量减小、积水时间减少、积水深度变小;植被浅沟措施和植被浅沟&绿色屋顶组合措施会使节点SS峰值浓度高于现状用地,其余布设情景下,SS峰值浓度均减小.LID措施对节点流量和水质的控制效果在低降雨重现期和长降雨历时的降雨情景下较为有效.在单个LID布设情景中,渗透铺装措施控制最佳,而组合LID布设情景中,渗透铺装&植被浅沟&绿色屋顶是最佳的组合控制措施.研究结果可为南方城市居民区实施海绵城市建设提供技术支持,并为地方制定相关规范和标准提供参考和借鉴.

引用

页码：2555 / 2563

页数：9

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