广州天河智慧城SWMM参数敏感性分析  

Sensitivity analysis of SWMM parameters in Guangzhou Tianhe wisdom city

作　　者：曾家俊 麦叶鹏 李志威 任秀文 潘健[1] 黄国如[1,4] ZENG Jiajun;MAI Yepeng;LI Zhiwei;REN Xiuwen;PAN Jian;HUANG Guoru(South China University of Technology,School of civil engineering and transportation,Guangzhou 510640,China;Guangzhou Water Science Research Institute,Guangzhou 510220,China;South China Institute of Environmental Sciences,Ministry of Environmental Protection,Guangzhou 510530,China;South China University of Technology,State Key Laboratory of Subtropical Building Science,Guangzhou 510640,China)

机构地区：[1]华南理工大学土木与交通学院,广东广州510640 [2]广州市水务科学研究所,广东广州510220 [3]生态环境部华南环境科学研究所,广东广州510530 [4]华南理工大学亚热带建筑科学国家重点实验室,广东广州510640

出　　处：《水资源保护》2020年第3期15-21,共7页Water Resources Protection

基　　金：国家自然科学基金(51739011);国家水体污染控制与治理科技重大专项(2017ZX07202006-002);广东省水利科技创新项目(2016-32);广州市科技计划(201707020020,201803030021)。

摘　　要：为研究城市雨水模拟中参数对SWMM模拟结果的影响,构建了广州天河智慧城SWMM水文模型,开展降雨径流水量水质同步监测,对模型参数进行率定与验证,并使用Morris方法分析水文水力参数和水质参数的敏感性。结果表明:水文水力参数中最大下渗速率对总径流量敏感性最高,地表曼宁系数对峰值流量敏感性最高,下渗参数为影响水文水力模拟结果的主要参数;水质参数中冲刷指数对污染物模拟结果敏感性最高,前期干旱天数对污染物模拟结果敏感性比总径流量模拟的敏感性高。In order to study the influence of different parameters on SWMM simulation results in urban rainwater simulation,the SWMM hydrological model of Guangzhou Tianhe Wisdom City was constructed.Simultaneous monitoring of rainfall runoff water quality and water quantity was carried out in the study area.The model parameters were determined and verified,and the sensitivity of hydrological and hydraulic parameters and water quality parameters were analyzed based on the Morris method.The results show that the maximum infiltration rate in hydrological and hydraulic parameters is the most sensitive to the total runoff volume,and the surface Manning coefficient is the most sensitive to runoff peak.The infiltration parameter is the main parameter affecting hydrological hydraulic simulation results.The exponent in water quality parameters is the most sensitive to pollutant simulation results.The sensitivity of the antecedent dry days to the simulation results of pollutants is higher than that of runoff flow simulation.

关 键 词：暴雨洪水管理模型 敏感性分析 Morris方法 水文水力参数 水质参数 天河智慧城 

分 类 号：TV213.4[水利工程—水文学及水资源]