澳门地区水浸灾害仿真推演与防控效果分析OA

Against the backdrop of climate change,influenced by factors such as tidal backwater,rapid urbanization and high population density,coastal cities are plagued by frequent waterlogging disasters and show the problems of inadequate prevention and control capacity of waterlogging disasters and low intelligence level of decision-making analysis.Therefore,carrying out research on the simulation deduction of waterlogging disasters in coastal cities is of practical significance.By taking Macao as the research object,this study constructs a simulation deduction system for waterlogging disasters in coastal cities and carries out simulation deduction analysis on the prevention and control effectiveness of key projects.This system features functions such as urban waterlogging disaster simulation and 3D visual scenario deduction.By conducting a series of tests and validations based on historical waterlogging disaster events from Typhoon Hato,the system demonstrates high simulation accuracy and robust 3D visualization capabilities.Simulation deduction analysis of the prevention and control effectiveness of key projects including new tidal barrages and raised embankments reveals that while the construction of tidal barrages effectively blocks external tidal water and significantly reduces the influence of waterlogging disasters on the western side of the Peninsula of Macao,waterlogging still occurs in some areas on the northeastern side of the peninsula.After constructing the tidal barrages and raising the embankments in key areas of the peninsula,the northeastern part of it exhibits only isolated ponding with the maximum ponding depth less than 10 cm.The combination of constructing tidal barrages and raising embankments can effectively prevent and control the risk of waterlogging disasters in the Peninsula of Macao.This study can provide a scientific,systematic,and visual simulation platform for the prevention,response,and mitigation of waterlogging disasters in coastal cities.It serves as a reference for the scientific management and control of such disasters in coastal cities.