CAJ | 학술논문

城市降雨径流管理模型 SWMM模型采用离散化的空间参数来描述区域的水文变化特性，从物理意义上描述了城市雨洪过程。但众多不确定的参数影响了模型的应用效果，有必要对其参数进行敏感性分析。研究将 SWMM模型应用于北京市大红门排水片区，采用2000-2003年3场独立场次洪水资料对模型进行率定与验证。在此基础上利用Morris筛选法定量分析了模型参数对模拟结果的影响。结果显示，模型能够较好的模拟大红门片区的暴雨洪水过程，径流量相对误差皆在20%之内。在上述参数中，模拟洪峰和相对误差都对 N-Imperv(不透水区曼宁系数)、Imperv(不透水率)及 Slope(坡度)较为敏感，相关系数对 N-Imperv(不透水区曼宁系数)和 Slope(坡度)较敏感。
성시강우경류관리모형 SWMM모형채용리산화적공간삼수래묘술구역적수문변화특성，종물리의의상묘술료성시우홍과정。단음다불학정적삼수영향료모형적응용효과，유필요대기삼수진행민감성분석。연구장 SWMM모형응용우북경시대홍문배수편구，채용2000-2003년3장독립장차홍수자료대모형진행솔정여험증。재차기출상이용Morris사선법정량분석료모형삼수대모의결과적영향。결과현시，모형능구교호적모의대홍문편구적폭우홍수과정，경류량상대오차개재20%지내。재상술삼수중，모의홍봉화상대오차도대 N-Imperv(불투수구만저계수)、Imperv(불투수솔)급 Slope(파도)교위민감，상관계수대 N-Imperv(불투수구만저계수)화 Slope(파도)교민감。
Storm Water Management Model (SWMM ) uses spatial parameters to analyze regional hydrological characteristics and urban storm water process.Since many uncertain parameters affect the model, it is necessary to analyze the sensitivity of model parameters.Three floods from 2000-2003 in Dahongmen drainage districtin in Beij ing was selected for model calibration and validation.Morris screening was applied for parameter sensitivity analysis.SWMM model was found to be suitable for flood simulation.The manning roughness coefficient for impervious area,the percentage of imperviousness areas and slope were found to be sensitive to both flood peak and relative error,the percentage of imperviousness areas and slope were sensitive to correlation coefficient.