LID措施降低老城区合流制溢流污染的模拟研究  

Simulation on LID Measures for Control of Combined Sewer Overflows in Existing Urban Areas

作　　者：张颖[1] 李田[1] 

机构地区：[1]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《中国给水排水》2016年第11期127-131,共5页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2011ZX07303-002)

摘　　要：以合肥市老城区杏花排水系统为案例,运用水力模型工具,探讨在老城区设置低影响开发(LID)设施,从源头缓解合流制溢流(CSO)污染的效果与可行性。根据土地紧缺、土壤渗透性差等情况,进行LID措施选择和方案布置;以Info Works ICM为工具,采用典型年降雨数据进行长期连续模拟,讨论LID设施下排水管及生物滞留池储水层的合理设计,分析在老城区增设源头控制设施对CSO溢流水量及溢流次数的控制效果。结果表明,在现有土地使用条件下增设LID设施,可以明显提高现有系统的CSO控制效果。Taking the Xinghua drainage system in existing areas of Hefei City as an example, the effect and feasibility of introducing low impact development （LID） facilities to existing urban areas for the control of combined sewer overflows （CSO） at the source were discussed using the hydraulic model of the pipeline network. The selection and layout of LID measures were conducted in the case of land use limita- tion, poor soil permeability and so on. Based on the long-term continuous simulation with typical hydro- logical year rainfall data through the InfoWorks ICM model, the reasonable design of underdrain pipes of LID facilities and water storage layer of bio-retention tank were discussed, and the control effect of source control infrastructure,on the volume and frequency of CSO was analyzed. The results showed that under the existing land use conditions, adding LID facilities could effectively improve the control effect of CSO from the existing system.

关 键 词：低影响开发 老城区改造 合流制溢流 模拟 

分 类 号：TU992[建筑科学—市政工程]