城市雨洪径流模型研究概述

Research overview of runoff model for urban rainwater

近年来,我国城市化进程加快,城市遭遇极端暴雨引发严重内涝灾害呈现加剧态势。欧美等发达国家很早就通过建立数学模拟模型,研究城市雨洪产汇流和径流排泄过程,评估区域淹没损失风险,并进行城市排水管网设计优化和内涝预警预报等工作。通过综合国内外城市雨洪径流模型研究文献和应用实例,归纳模型概念,结构和分类,对比分析典型模型特点和应用,得到模型不足和应用局限性,尝试给出解决思路,并指出模型发展具有多技术融合和模块化商业化的趋势,对于借鉴和指导模型应用有重要意义。

With the accelerated urbanization process,cities are suffering from extremely heavy rain and urban storm water logging disaster in recent years.The developed countries have adopted mathematical simulation models to study urban rainwater runoff and the drainage process,to assess the regional flood risk and losses and to do the urban drainage network optimal design and waterlogging warning and prediction.Through summarized the research literature and application examples of urban rainwater runoff simulation model at home and abroad,the paper concluded the model concept,structure and classification,comparatively analyzed the characteristics and applications of typical models,generalized the modeling software＇s shortage and limitation,and tried to give the solutions.The development of models trends toward multi-technology integration,modular and business.It will be of great significance for the reference and guidance of model application.