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排水管网模型参数率定及分析 被引量:7

Calibration and Analysis of Drainage Network Model
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摘要 选择JZ市老城区某区域为研究对象,建立排水管网Info Works CS模型,基于实际降雨事件数据,率定降雨径流模型参数,并对主要参数进行敏感度分析。结果表明,影响径流洪峰量的最敏感参数是Horton模型的稳渗率,不透水表层的固定径流系数次之,且初渗率和初期损失值的敏感度最小。研究成果可为城市排水管网模型建立及参数选择提供理论依据和技术支撑。 Taking an area in the old town of JZ City as the research object, the drainage network InfoWorks CS model was built. The parameters of the rainfall-runoff model were calibrated using the measured data of rainfall events. The sensitivity of major parameters was analyzed. The results showed that the most sensitive parameter affecting the runoff peak was the steady infiltration rate of Horton model, followed by fixed runoff coefficient of impervious surface, and the sensitivity of the initial infiltration rate and the initial loss value was minimum. The research results can provide theory basis and technical support for the modeling of urban drainage network and selection of parameters.
出处 《中国给水排水》 CAS CSCD 北大核心 2016年第7期86-88,共3页 China Water & Wastewater
基金 国家自然科学基金资助项目(51078193 51478230)
关键词 排水管网 InfoWorks CS 降雨径流模型 参数率定 敏感度分析 drainage network InfoWorks CS rainfall-runoff model calibration of parameters sensitivity analysis
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