为了对城市暴雨洪水进行快速响应，基于元胞自动机构建城市暴雨洪水模型，以期在发生暴雨事件时能够快速模拟洪水演进过程。设置符合城市复杂下垫面特征的产汇流规则，充分考虑各种产流因素以及特殊情况下的解决方案。以济南市主城区为研究区域进行案例分析，结果表明：元胞自动机对大区域洪水模拟除本身具有快速计算的优点外，也能得出可靠的结果，计算得到的淹没水深与实测数据大致吻合。与传统基于数学物理方程的模型相比，元胞自动机模型对数据需求较低，表现形式直观，能够很好的应用于城市洪涝演化模拟中。
Abstract
In order to respond quickly to urban storms and floods, an urban storm flood model is constructed based on cellular automata to quickly simulate the flood evolution process in the event of a heavy rain. It is necessary to set the rules of runoff generation and confluence that meet the characteristics of the city's complex underlying surface, and fully consider various runoff generation factors and solutions under special circumstances. Case study of the main urban area of Jinan City is carried out. The results show that the cellular automata can obtain reliable results in addition to the advantages of fast calculation in large area flood simulation. The calculated submerged water depth and measured data are approximate. Compared with traditional models based on mathematical physics equations, the cellular automata model has low data requirements and intuitive expression, and can be well applied to urban flood evolution simulation. Key words:
关键词
城市雨洪 /
元胞自动机 /
产汇流计算 /
淹没水深
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Key words
urban flood /
cellular automata /
runoff calculation /
submerged water depth
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基金
山东省自然科学基金资助项目;山东省省级水利科研与技术推广项目
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参考文献
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