基于MIKE+的城市渠道初雨截流方案优化  

Optimization of Initial Rainfall Closure Scheme of Urban Canal Based on MIKE+

作　　者：张玉浩 米灿龙 杨长河 吴雪军 陈战利[2] 陈文 孙菲 王震 潘郴 朱丹霞[2] ZHANG Yu-hao;MI Can-long;YANG Chang-he;WU Xue-jun;CHEN Zhan-li;CHEN Wen;SUN Fei;WANG Zhen;PAN Chen;ZHU Dan-xia(Nanchang Urban Planning&Design Institute Group Co.Ltd.,Nanchang 330038,China;School of Resources and Environment,Nanchang University,Nanchang 330038,China;Danhua Water Environmental Technology Co.,LTD.,Shanghai 200030,China)

机构地区：[1]南昌市城市规划设计研究总院有限公司,江西南昌330038 [2]南昌大学资源与环境学院,江西南昌330038 [3]丹华水利环境技术有限公司,上海200030

出　　处：《水电能源科学》2024年第9期33-37,42,共6页Water Resources and Power

基　　金：江西省科技厅自然科学青年基金(2007gZC0075);江西省教育厅科学技术研究项目(〔2007〕51)。

摘　　要：以南昌市南北连通渠区域为例,基于MIKE+平台构建研究区域包含初雨截流管、智能分流井和调蓄池等的管网、汇水区及水质模型,分析了现状初雨截流方案下各汇水区径流污染浓度、进入调蓄池的污染物总量和总水量,根据模拟结果确定径流污染控制目标,并将汇水区划分为A、B、C三类汇水区,模拟优化方案下各区分流井在不同关闸时间下排入渠道的COD、TN、NH_(3)-N、TP平均浓度。结果表明,A、B、C区的分流井关闸时间分别为单次累计降雨5、8、9 mm后15 min时,能达到径流污染控制目标,优化方案较原方案调蓄池收集COD、TN、TP、NH_(3)-N总量分别提高21.59%、18.55%、17.30%、17.36%。研究结果亦可为类似初期雨水截流方案的选择提供建议及参考。Taking the north-south connecting canal of Nanchang City as an example,the pipe network,catchment area and water quality model of the study area including initial rain closure pipe,intelligent diversion well and regulation pool are constructed based on MIKE+platform.Under the current initial rain closure scheme,the runoff pollution concentration of each catchment area,the total amount of pollutants entering the regulation and storage tank and the total water volume are analyzed.The runoff pollution control target is determined according to the simulation results,and the catchment area is divided into A,B,C catchment areas.The average concentrations of COD,TN,NH_(3)-N and TP discharged into the channel of distributary wells in different shut-in times are simulated.The results show that when the gate closing time of distributary wells in A,B and C areas is 5 mm,8 mm and 9 mm respectively,the runoff pollution control target can be achieved,and the total amount of COD,TN,TP and NH_(3)-N collected by the optimized scheme is 21.59%,18.55%,17.30%and 17.36%higher than that of the original scheme.The research results can also provide suggestions and references for the selection of river closure schemes similar to those of rain water in the initial stage.

关 键 词：初期雨水 径流污染控制 MIKE+模型 智能分流井 

分 类 号：TU992[建筑科学—市政工程]