摘要
城市内涝模型是当前城市内涝预警的主要技术手段,然而现阶段的城市内涝模型精度不高且较为复杂,因此建立一个精度高且简便的内涝模型是急需解决的重点问题。以SWMM一维模型作为研究基础,针对广州市海珠区历史内涝点建立内涝模型,实现了对城市内涝深度的模拟分析。结果表明,模型可准确推断出内涝等级及积水深度,实现对内涝积水的预警预报作用。该模型简化了传统复杂的地表二维模型,将暴雨对内涝积水点的影响转化为暴雨与管网之间的关系,大大减少了计算量。
Urban waterlogging model is the main technical means of urban waterlogging warning at present. However,the accuracy of urban waterlogging model at present is not high and complex. Therefore,the establishment of a waterlogging model with high accuracy and simplicity is a key problem needed to be solved urgently. Therefore,this paper takes SWMM one-dimensional model as the research basis,establishes a waterlogging model for historical waterlogging points in Haizhu District,Guangzhou,and realizes the simulation and analysis of urban waterlogging depth. The results show that the model can accurately infer the waterlogging grade and water depth,and realize the role of early warning and forecasting of waterlogging. This model simplifies the traditional complex two-dimensional surface model,and transforms the influence of rainstorm on waterlogging points into the relationship between rainstorm and pipe network,which greatly reduces the calculation amount.
作者
沈迪
武海霞
龙岩
康爱卿
SHEN Di;WU Hai-xia;LONG Yan;KANG Ai-qing(School of Water Conservancy and Hydroelectric Power,Hebei University of Engineering,Handan 056038,China;Hebei Key Laboratory of Intelligent Water Conservancy,Handan 056038,China;China Institute of Water Resources and Hydropower Research,Beijing 100038,China)
出处
《海河水利》
2023年第2期95-99,107,共6页
Haihe Water Resources
关键词
SWMM
历史内涝点
内涝深度
内涝等级
SWMM
historical waterlogging points
waterlogging depth
waterlogging grade
