基于SWMM的小区排水能力校核及低影响开发解决措施  

Drainage Capacity Check and Low Impact Development Solution of District Based on SWMM

作　　者：侯煜堃[1] 郭宇超 HOU Yukun;GUO Yuchao(Institute of Urban Water Research, North China University of Water Resources and Electric Power, Zhengzhou 450046, China;School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, China)

机构地区：[1]华北水利水电大学城市水务研究院,河南郑州450046 [2]华北水利水电大学水利学院,河南郑州450046

出　　处：《河南教育学院学报（自然科学版）》2020年第1期50-57,共8页Journal of Henan Institute of Education(Natural Science Edition)

基　　金：来宾市给水系统信息化建设规划与微观水力模型构建技术咨询项目(KLLBC20183172)。

摘　　要：以武汉市青山区某居住小区为例,对该小区的排水管网进行合理概化,构建基于SWMM的水力模型,以1 a、3 a、5 a为重现期校核排水管网系统的排水能力。通过模型计算,该小区排水能力不符合现行的武汉市排水设计规范。在1 a、3 a、5 a重现期下该小区溢流节点随之增加,不同重现期下溢流节点所占比为40%、52%、64%。针对该小区排水能力不足的问题,通过3种不同低影响开发(LID)组合方案的措施,对该小区进行了改进。结果显示,1 a、3 a、5 a重现期下无节点发生溢流,降低了管网排水压力,满足了现行排水设计规范。Taking a residential district in Qingshan District of Wuhan as an example,the drainage network of the residential district was rationally generalized,and a hydraulic model based on SWMM was constructed to check the drainage capacity of the drainage network system in 1 a,3 a and 5 a.Through the model calculation,the drainage capacity of the residential area is not in line with the existing drainage design code of Wuhan.In the 1 a,3 a and 5 a recurrence period,the number of overflow nodes in the cell increases accordingly.The proportions of overflow nodes in different recurrence periods are 40%,52%and 64%respectively.To solve the problem of insufficient drainage capacity of the district,improves the district through three different low impacts of development(LID)combination schemes.The results show that no node overflow occurs in the 1 a,3 a and 5 a recurrence period,which reduces the drainage pressure of the pipeline network and meets the current drainage design specifications.

关 键 词：SWMM 排水能力校核 LID措施 小区改造 城市内涝 

分 类 号：TV213.9[水利工程—水文学及水资源]