水利水电技术（中英文）2024，Vol.55Issue(2)：27-38,12.DOI:10.13928/j.cnki.wrahe.2024.02.003
城市内涝灾害对应急救援服务可达性的影响评估
Assessment of the impact of urban waterlogging disasters on the accessibility of emergency rescue services
摘要
Abstract
[Objective]The acceleration of the urbanization process and the impact of climate change led to the frequent occur-rence of urban flooding,[Results]ing in road closures and traffic congestion.The timeliness of urban emergency response was significantly affected.To accurately assess the emergency response capability during storm-induced flooding,[Methods]Liwan District was taken as an example.A hydrodynamic model was constructed to simulate flooding scenarios under different rainfall intensities.Road flooding risks were identified,blocked roads were specified,and,utilizing the Two-Step Floating Catchment Area(2SFCA)method,the accessibility of emergency rescue services for different vulnerable points of interest(POIs)was as-sessed.[Results]Results indicate that,with the increase in the return period of rainfall,the flooded area and average water depth increased.The number of affected roads and the length of blocked roads rose by over 300％.As the number of blocked roads increased,the accessibility of emergency rescue services to POIs showed a decreasing trend,dropping by more than 40％within different time thresholds.[Conclusion]The findings suggest that the overall pattern of blocked roads can be revealed by the coupled urban flood model,and the timeliness of emergency response can be rapidly estimated by the accessibility model.These results provide valuable insights for the evaluation of emergency response capabilities.关键词
暴雨内涝/水力耦合模型/两步移动搜寻法(2SFCA)/应急救援/可达性/气候变化/降水/洪水Key words
heavy rainfall-induced waterlogging/hydrodynamic coupling model/Two-Step Floating Catchment Area(2SFCA)/emergency rescue/accessibility/climate change/precipitation/flood分类
建筑与水利引用本文复制引用
施加福,王昊,周晋军,丁一,张树勋..城市内涝灾害对应急救援服务可达性的影响评估[J].水利水电技术（中英文）,2024,55(2):27-38,12.基金项目
北京市朝阳区科技计划项目(CYSF2237) （CYSF2237）
国家自然科学基金重大项目课题(52192671) （52192671）
