给水排水
給水排水
급수배수
2009年
11期
213-217
,共5页
雨水管网%降雨径流模型%参数校准%径流系数%灵敏度分析%SWMM
雨水管網%降雨徑流模型%參數校準%徑流繫數%靈敏度分析%SWMM
우수관망%강우경류모형%삼수교준%경류계수%령민도분석%SWMM
Storm sewer networks%Rainfall-runoff model%Parameter calibration%Runoff coeffi-cient%Sensitivity analysis%SWMM
为了解决我国城市降雨径流模型参数校准数据欠缺的问题,应用较易获得的径流系数作为校准目标,以峰现时间作为径流系数模拟值的计算依据,以合成单峰降雨作为校准降雨事件,在SWMM平台上进行模型参数校准.通过校准模型适用性和灵敏度分析,表明该法既可以满足模型参数预校准的要求,也可以在模型参数不确定性分析的基础上用于实践.因此,该法是改善城市降雨径流模型参数校准状况的有效途径.
為瞭解決我國城市降雨徑流模型參數校準數據欠缺的問題,應用較易穫得的徑流繫數作為校準目標,以峰現時間作為徑流繫數模擬值的計算依據,以閤成單峰降雨作為校準降雨事件,在SWMM平檯上進行模型參數校準.通過校準模型適用性和靈敏度分析,錶明該法既可以滿足模型參數預校準的要求,也可以在模型參數不確定性分析的基礎上用于實踐.因此,該法是改善城市降雨徑流模型參數校準狀況的有效途徑.
위료해결아국성시강우경류모형삼수교준수거흠결적문제,응용교역획득적경류계수작위교준목표,이봉현시간작위경류계수모의치적계산의거,이합성단봉강우작위교준강우사건,재SWMM평태상진행모형삼수교준.통과교준모형괄용성화령민도분석,표명해법기가이만족모형삼수예교준적요구,야가이재모형삼수불학정성분석적기출상용우실천.인차,해법시개선성시강우경류모형삼수교준상황적유효도경.
In order to deal with the calibration data scarcity problem in China, the parameter calibration of urban rainfall-runoff model is conducted based on SWMM, which uses the easy-access runoff coefficient as parameter calibration target, time of runoff peak as the basis of runoff coefficient simulation, and the synthesized single-peak rainfall events as the calibrated rainfall scenarios. According to the applicability and sensitivity analysis for the calibrated model, it shows that the method can meet the demand for model parameter pre-calibration and for practices on the basis of model parameter uncertainty analysis. Therefore, it is an effective approach to improve the parameter calibration condition for urban rainfall-runoff model.
