基于多智能体模型的城市洪涝灾害动态风险评估

被引:8
作者
卢兴超 [1 ,2 ]
徐宗学 [1 ,2 ]
李永坤 [2 ,3 ]
胡小红 [2 ,3 ]
机构
[1] 北京师范大学水科学研究院
[2] 城市水循环与海绵城市技术北京市重点实验室
[3] 北京市水科学技术研究院
基金
国家自然科学基金重点项目;
关键词
多智能体模型; 城市洪涝灾害; 人口动态风险; 避险策略; 水文水动力模型;
D O I
暂无
中图分类号
TU992 [排水工程(沟渠工程、下水道工程)];
学科分类号
0815 ;
摘要
围绕城市洪涝灾害过程中对人口动态风险评估的需求,在城市水文水动力模型基础上,提出了基于多智能体模型的城市洪涝灾害动态风险评估方法,分别设置孕灾环境智能体、致灾因子智能体、承灾体智能体的运行规则,并给出多智能体之间的通信机制,以实现城市洪涝灾害过程人口动态风险定量评估。以北京市海淀区清河流域某典型排水分区为例,利用SWMM和LISFLOOD-FP模型,模拟50年一遇设计降雨情景下的洪涝灾害过程,并基于NetLogo模型构建城市洪涝灾害承灾体动态风险评估模型对研究区中的人口动态风险进行了评估。结果表明:50年一遇设计降雨情景下,研究区洪涝风险面积从降雨历时T=4 h的0.608 km2增加到T=30h的2.202 km2;常规模拟情景下,研究区低风险人口数持续下降、高风险人口数持续上升,最终低风险人口数稳定占比为75.75%,高风险人口数稳定占比为22.85%;在设置救援避险策略后,研究区低风险人口数先下降后升高,在T=4.5 h时,最低人口数占比为92.30%,而高风险人口数先升高后降低,最高人口数占比为7.07%,最终低风险人口数稳定占比为100%。
引用
收藏
页码:36 / 47
页数:12
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