基于InfoWorks ICM模型的城市小区LID组合方案成本效益研究  

Cost-effectiveness of LID combination schemes for city area based on InfoWorks ICM model

作　　者：李军 刘学峰 王德淇 李欢 祁军业 刘建林 张婷婷 未碧贵[1,2] LI Jun;LIU Xuefeng;WANG Deqi;LI Huan;QI Junye;LIU Jianlin;ZHANG Tingting;WEI Bigui(School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;Key laboratory of Yellow River Water Environment in Gansu Province,Lanzhou 730070,China;Beijing General Municipal Engineering Design and Research Institute Co.,Ltd.,Beijing 100082,China)

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]甘肃省黄河水环境重点实验室,甘肃兰州730070 [3]北京市市政工程设计研究总院有限公司,北京100082

出　　处：《水资源与水工程学报》2024年第4期66-75,共10页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金项目(52060014);甘肃省科技计划项目(21JR7RA340);国家重点研发计划项目(2018YFE0206200)。

摘　　要：针对低影响开发(LID)雨水系统建设中存在成本与效益难以平衡的问题,选取甘肃省天水市某居住小区为研究对象,构建InfoWorks ICM一、二维耦合模型,以不同LID组合方案在不同降雨重现期下的径流总量控制率、径流峰值削减率、积水面积削减率、积水量削减率、固体悬浮物(SS)削减率、化学需氧量(COD)削减率为效益表征量,结合LID设施的生命周期成本定量分析成本效益。结果表明:包含绿色屋顶的LID组合方案成本效益偏低,但对于高重现期降雨具有较强的适应能力,更适用于暴雨频发地区;LID组合方案对于积水面积削减率与积水量削减率的成本效益较高,能有效缓解内涝积水,对于COD削减率的成本效益较低,需进一步优化;雨水桶+生物滞留设施+透水铺装作为总成本效益最高的方案,更适用于研究区域LID雨水系统的建设。研究成果对LID雨水系统的优化设计具有重要参考意义。In response to the problem of cost and benefit imbalance in the construction of low impact development(LID)rainwater systems,a residential area in Tianshui City,Gansu Province was selected as the research area to construct an InfoWorks ICM one and two dimensional coupled model.The total runoff control rate,peak runoff reduction rate,water accumulation area reduction rate,water accumulation reduction rate,suspended solids(SS)reduction rate and chemical oxygen demand(COD)reduction rate of different LID combination schemes under different rainfall return periods were quantitatively analyzed for the study of cost-effectiveness of LID facilities,with the consideration of their life cycle cost.The results show that the LID combination scheme with green roof is less cost-effective,but it has a strong adaptability to heavy rainfall,and is more suitable for rainstorm prone areas.The LID combination schemes are highly cost-effective in reducing the area and volume of water accumulation,and can effectively alleviate waterlogging;however,the cost-effectiveness of COD reduction rate is relatively low,and further optimization is needed.The combination of rainwater buckets,biological retention facilities and permeable paving,as the most cost-effective solution,is more suitable for the construction of LID rainwater systems in the study area.The research results have important reference significance for the optimization design of LID rainwater systems.

关 键 词：低影响开发 成本效益 InfoWorks ICM模型 生命周期成本 

分 类 号：TU992[建筑科学—市政工程] TV121.2[水利工程—水文学及水资源]