[1]苏定江,刘希,董佳,等.海绵城市年径流污染总量削减率定义及计算方式探讨[J].中国给水排水,2023,39(24):93-99.
　SUDing-jiang,LIUXi,DONGJia,et al.Definition and Calculation Method of Total Annual Runoff Pollutant Reduction Rate in Sponge City[J].China Water & Wastewater,2023,39(24):93-99.
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海绵城市年径流污染总量削减率定义及计算方式探讨

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第24期 页码: 93-99 栏目: 出版日期: 2023-12-17
Title:
Definition and Calculation Method of Total Annual Runoff Pollutant Reduction Rate in Sponge City
作者:
苏定江1,2， 刘希1,2， 董佳1,2， 蔡岚1,2， 毛绪昱1,2， 刘杰1,2
（1.重庆市市政设计研究院有限公司，重庆 400030；2.重庆市海绵城市建设工程技术研究中心，重庆 400030）
Author(s):
SU　Ding-jiang1，2， LIU　Xi1，2， DONG　Jia1，2， CAI　Lan1，2， MAO　Xu-yu1，2， LIU　Jie1，2
（1. Chongqing Municipal Research Institute of Design， Chongqing 400030， China； 2. Sponge City Engineering Technology Research Center of Chongqing， Chongqing 400030， China）
关键词:
海绵城市;  年径流污染总量削减率;  计算方式;  低影响开发
Keywords:
sponge city;  total annual runoff pollutant reduction rate;  calculation method;  low-impact development
摘要:
年径流污染总量削减率是我国海绵城市建设基本控制指标之一，从工程设计可行角度探讨了其存在的狭义和广义两种定义。狭义年径流污染总量削减率为雨水设施对已形成的径流中污染物去除比例，计算所需参数可通过现有标准取值，但采用“1-雨量径流系数”作为年径流总量控制率时不适用于该计算方式。广义年径流污染总量削减率为低影响开发模式下外排径流污染物减少比例，计算所需参数不能通过现有的标准取值，因此提出了近似计算方式。广义年径流污染总量削减率可以体现透水下垫面对径流污染的去除效果，现阶段工程设计中推荐采用广义年径流污染总量削减率定义及其近似计算方式。
Abstract:
Total annual runoff pollutant reduction rate is one of the basic control indicators of sponge city construction in China. This paper discussed the narrow and broad definitions of total annual runoff pollutant reduction rate from the perspective of engineering design feasibility. In the narrow sense, total annual runoff pollutant reduction rate is the proportion of pollutants removed from the formed runoff by rainwater facilities. The parameters required for calculation can be set according to the existing standards. However, it is not suitable to apply this calculation method when the total annual runoff control rate is selected from “1-rainfall runoff coefficient”. In the broad sense, total annual runoff pollutant reduction rate is the reduction ratio of runoff pollutants under low-impact development mode. The parameters required for calculation can not be calculated by existing standards. Therefore, an approximate calculation method was proposed. The generalized total annual runoff pollutant reduction rate can reflect the performance of permeable underlying surface for the removal of runoff pollutants. Therefore, it is recommended to adopt the definition of generalized total annual runoff pollutant reduction rate and its approximate calculation method in current engineering design.

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更新日期/Last Update: 2023-12-17