基于InfoWorks ICM的深圳市民治片区洪涝风险评估  

Flood Risk Assessment of Minzhi Sub-District in Shenzhen City Based on InfoWorks ICM

作　　者：LI JIANGJUN 李佳玥 黄国如[1,2,3] 欧阳明宇 张泽中 LI JIANGJUN;LI Jiayue;HUANG Guoru;OUYANG Mingyu;ZHANG Zezhong(School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China;State Key Laboratory of Subtropical Building and Urban Science,South China University of Technology,Guangzhou 510640,China;Guangdong Engineering Technology Research Center of Safety and Greenization for Water Conservancy Project,Guangzhou 510640,China)

机构地区：[1]华南理工大学土木与交通学院,广州510640 [2]华南理工大学亚热带建筑与城市科学全国重点实验室,广州510640 [3]广东省水利工程安全与绿色水利工程技术研究中心,广州510640

出　　处：《广东水利水电》2024年第12期1-7,共7页Guangdong Water Resources and Hydropower

基　　金：国家自然科学基金项目(编号:52279015);亚热带建筑与城市科学全国重点实验室自主研究课题(编号:2023ZA01)。

摘　　要：以深圳市民治街道片区为例,构建基于InfoWorks ICM的一维—二维耦合城市洪涝模型,模拟研究区在设计暴雨重现期为100年一遇情景下洪水淹没深度与淹没历时分布,构建基于危险性—易损性的评估框架,并综合研究区的致灾因子、孕灾环境、承灾体和防灾减灾能力,基于情景模拟法和指标体系法绘制研究区洪涝灾害风险区划图。结果表明:一维—二维城市洪涝模型在模拟地面淹没水深上与实测数据误差较小,获取的致灾因子数据具有较好的精度;洪涝灾害风险等级主要受淹没深度和淹没历时影响;洪涝灾害高风险地区主要分布在片区北部和东部社区,西部区域风险等级相对较低。Urban regions are facing a persistent issue due to the rising occurrence of intense rainfall events,leading to frequent floods.Flood risk assessment offers a scientific foundation for flood prevention and drainage departments in making decisions.A coupled one-dimensional-two-dimensional(1D-2D)urban flood model was developed using InfoWorks ICM to simulate the distribution of flood inundation depth and duration in the Minzhi sub-district of Shenzhen.The model was used to analyze the effects of rainfall return periods of 100 years on the study area.A hazard-vulnerability-oriented assessment framework was chosen.Furthermore,the risk assessment included consideration of the disaster-causing,hazard-inducing environment,hazard-bearing body,and hazard prevention and mitigation capacity in the research region.Likewise,the flood risk assessment used scenario simulation method and indicator system approach to developed a flood risk zoning map for the study area.The results indicated that the 1D-2D urban flooding model accurately simulates the depth of water inundation,as evidenced by the small error when compared to measured data.This implied that the acquisition of data on the disaster-causing factors was reliable;The results of the risk zoning map further demonstrated that the level of flooding risk was primarily influenced by the depth of inundation and the duration of inundation;The regions with a high risk of flooding were primarily located in the Minzhi sub-district in the northern and eastern communities.In contrast,the western region had a relatively low degree of risk.

关 键 词：城市洪涝灾害 InfoWorks ICM 情景模拟法 指标体系法 洪涝风险评估 

分 类 号：TU998.4[建筑科学—市政工程]