基于地铁车辆段径流污染特征的雨水调蓄池布局优化  

Optimizing rainwater storage tank layout based on runoff pollution characteristics of a subway station

作　　者：屈沛臻 王力勇[3] 张志伟 聂金池 李全才[3] 吴彬 刘学志 李应龙 QU Peizhen;WANG Liyong;ZHANG Zhiwei;NIE Jinchi;LI Quancai;WU Bin;LIU Xuezhi;LI Yinglong(Zhongguancun Sponge City Engineering Research Institute Co.,LTD.,Beijing,China;Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology,Beijing,China;Beijing MTR Construction Administration Corporation,Beijing,China;Beijing Construction Engineering Quality Third Testing Institute Co.,LTD.,Beijing,China;Beijing Infrastructure Investment Co.,LTD.,Beijing,China)

机构地区：[1]中关村海绵城市工程研究院有限公司,北京 [2]城市水循环与海绵城市技术北京市重点实验室,北京 [3]北京市轨道交通建设管理有限公司,北京 [4]北京市建设工程质量第三检测所有限责任公司,北京 [5]北京市基础设施投资有限公司,北京

出　　处：《北京师范大学学报（自然科学版）》2024年第5期745-756,共12页Journal of Beijing Normal University(Natural Science)

基　　金：北京市轨道交通建设管理有限公司双创基金资助项目(SCJJ2023006)。

摘　　要：通过对北京市某地铁车辆段降雨径流事件监测,基于事件污染物平均质量浓度(EMC)和累积污染物质量-累积径流量曲线(m-V曲线),得到地铁车辆段不同下垫面径流中悬浮固体(SS)、化学需氧量(COD)、氨氮(NH_(4)^(+)-N)、总磷(TP)等的质量浓度及其变化规律均存在显著差异(P<0.05),且下垫面以建筑屋面为主的排水分区,初期冲刷强度强于以轨道为主的排水分区.通过动态降水-径流模拟(SWMM)模型,调整研究区雨水调蓄池参数和空间分布,进一步分析得到分散设计雨水调蓄池可进一步削减排口水量、提升排口及调蓄池水质,从而降低雨水回用的处理难度及成本.研究成果可为优化车辆段雨水调蓄池设计、提高雨水控制利用提供参考.In this study,rainfall runoff events are monitored in a subway depot in Beijing,by event mean concentration(EMC)and cumulative pollutant quality-cumulative runoff curve(M(v)curve).Significant differences were noted in suspended solids(SS),chemical oxygen demand(COD),ammonia nitrogen(NH_(4)^(+)-N)and total phosphorus(TP)concentrations in the runoff of different underlying surfaces of a subway car depot(P<0.05).Initial erosion intensity of the drainage area dominated by building roof was stronger than that dominated by track.Based on SWMM model,parameters and spatial distribution of rainwater storage tank in the study area were adjusted.Further analysis showed that decentralized design of rainwater storage tank could further reduce drainage volume and improve water quality of the drainage and storage tank,thus reducing treatment difficulty and cost of rainwater reuse.These data can provide some reference for optimizing design of stormwater storage tank and improving control and utilization of stormwater.

关 键 词：雨水调蓄池 径流污染 初期冲刷 雨水控制利用 

分 类 号：TU992.4[建筑科学—市政工程] TB21[一般工业技术—工程设计测绘]