Research on Urban Waterlogging Disaster Risk Assessment Based on ARCGIS and MIKE FLOOD andash; A Case Study on Shijiazhuang

Abstract

Urban flood risk assessment supported by accurate and precise modeling could make great contributions to urban flood management. In this paper, an urban drainage system model of Shijiazhuang city was built based on the MIKE21, MIKE URBAN and MIKE 11 modules in MIKE FLOOD platform in order to provide a storm sewer drainage capacity and waterlogging risk evaluation. The results show that in Shijiazhuang, 64.5% of storm sewer drainage criteria is less than 1-year return period storm, and only 28.9% of storm sewer can meet the drainage criteria of 2-year return period storm. The waterlogging risk area grows from 3.2, 15.1 to 18.5 square kilometer when the return period is 10, 20 and 50 years. Both the current condition and the drainage system model database indicate the reasons of the drainage issue in Shijiazhuang which can be summarized as the rapid urbanization, the low capacity of pipe network and pumping stations, the low construction standard, the lag between the sewer system construction and the demand, the lack of drainage outlet, and the imperfect management system.

Risk Assessment of the Bureau Storm Disaster by the Application of Extension Theory in Sichuan

“…用；蒋新宇等 [3] 综合运用 GIS 技术及相关方法绘制出 松花江的干流流域关于暴雨洪涝灾害的风险区划图； 孟翠丽等 [4] 综合运用主成分分析法（EOF） 、层次分 析法（AHP）以及 ArcGIS 技术建立了广西在农业方 面的暴雨灾害风险等级的实时评估模型；刘荆等 [5] 通过相关分析法以及加权求和法对淮河流域暴雨灾 害进行风险评估。Wei Zhang [6] 等通过精确的城市防 洪风险评估模型对城市防洪管理做出了巨大贡献。 Sijian Zhao [7] 等通过 IDW 方法，对洪涝灾害引起的灾 害进行风险评估。杨志双等 [8] 运用可拓理论等方法， 对西南典型山区泥石流灾害进行风险评估； 白利平等 [9] 将可拓理论运用于建立北京市泥石流预警预报模 型； 孙伟等 假设暴雨灾害风险等级的评价元素有 n 个， 即为 …”

Effectiveness Evaluation of Emergency Rescuing Plans Oriented to Urban Waterlogging Based on a Neural Network Model

“…This inherent challenge significantly complicates disaster management efforts. The acceleration of urbanization has led to an increased frequency of urban waterlogging disasters and subsequent losses, posing a substantial threat to the socio-economic fabric of cities [1]. Given the intricate nature [2], unpredictable characteristics [3], and extensive damage potential [4] associated with urban waterlogging disasters, urban emergency management faces multifaceted challenges encompassing establishing a harmonious and stable urban environment, judicious utilization of limited resources, and enhancing the emergency management department's ability to promptly respond to crises while mitigating risks.…”