摘要
近几年SWMM模型逐渐应用到建设海绵城市相关的规划设计中,如何提高模型参数选择、率定的效率,以提高模型的应用效果,是重要的工作之一。文中以迁安典型片区为例,结合设计资料、人工试验和自然降雨条件下的监测数据,参考相关文献,提出参数的选择和率定方法。参考模型手册和相关文献,明确敏感性高的参数,并确定参数的先验分布范围,采用拉丁超立方抽样法(LHS)从中选取参数样本,对其进行率定和验证,确定参数的最佳取值范围和最优值。在此基础上,进一步对LID措施的非结构性参数进行率定与验证,为当地海绵城市建设提供经验,也为我国SWMM模型应用提供参考和借鉴。
In recent years,SWMM model has been gradually applied to the planning and design related to sponge city construction.How to improve the efficiency of model parameter selection and calibration to improve the application effect of the model is one of the important tasks.Taking the typical area of Qian’an as an example,this paper put forward the method of parameter selection and calibration based on the design data,artificial test and monitoring data under natural rainfall conditions,and referring to relevant literatures.With reference to model manual and relevant literature,parameters with high sensitivity were identified and their prior distribution range was determined.Latin hypercube sampling(LHS) was used to select parameter samples,calibrate and verify them,and determine the optimal value range and optimal value of parameters.On this basis,the non-structural parameters of LID measures were calibrated and verified.It provides experience for local sponge city construction,and also provides reference for SWMM model application at home.
作者
王建富
郭豪
秦祎
张超
WANG Jianfu;GUO Hao;QIN Yi;ZHANG Chao(Beijing Tsinghua Tongheng Urban Planning and Design Institute Co.,Ltd.,Beijing100083,China;School of Environment,Tsinghua University,Beijing100084,China;Beijing Urban Construction Design and Development Group Co.,Ltd.,Beijing100037,China)
出处
《净水技术》
CAS
2022年第5期122-130,共9页
Water Purification Technology
