【作者】 陈鹏； 张继权； 张立峰； 孙滢悦；

【Author】 Peng Chen;Jiquan Zhang;Lingfeng Zhang;Yingyue Sun;Jilin Normal University,College of Tourism and Geographical Sciences;School of Environment,Northeast Normal University;

【机构】 吉林师范大学旅游与地理科学学院； 东北师范大学环境学院；

【摘要】 随着全球气候变暖、城市化进程加快,城市积涝问题日趋严重,己经成为当今研究热点。城市暴雨积涝灾害居民避难迁安研究过程中,城市暴雨积涝情景模拟是其重要环节之一。开展城市暴雨积涝情景模拟研究可以指导我们确定积涝影响范围及发生位置。本研究利用一、二维非恒定流为基本控制方程,以不规则网格为基本骨架,构建城市暴雨积涝数值模拟模型,结合信息扩散理论计算研究区暴雨发生概率,以此为基础设定研究区暴雨积涝情景,实现了不同积涝情景模拟结果及可视化。研究结果表明当研究区发生5年一遇的暴雨时区内刚好发生积涝灾害,且水深为0-0.47m之间,流速在0-0.43m/s之间;100年一遇的暴雨时区内积涝为最大,且水深在0-3m之间,流速在0-3.4m/s之间。更多还原

【Abstract】 As global warming urbanization process accelerated,urban waterlogging problem is increasingly serious,has become the research hotspot nowadays.City rainstorm waterlogging scene simulation is one of the important link in the research of the process in which residents shelter when city rainstorm waterlogging occurred.To develop urban rainstorm product scenario simulation study can guide us to determine the product elimination and influence range and location.This study using a one-dimensional and two-dimensional unsteady flow as the basic equation,with irregular grid as the basic frame,build urban rainstorm waterlogging deposition numerical simulation model,combining with the information diffusion theory calculation rainstorm probabilities in the study area,on this basis,set the study area rainstorm waterlogging situation,realized the different waterlogging scene simulation and visualization.The results show that the heavy rain that just sccumulate waterlogging disasters occurs once every five years in the study area,and depth of0-0.47 m,velocity between 0-0.43m/s.there is the biggest produce waterlogging which sccumulate with the heavy rain occurs once every 100 years.,and the depth of0-3m,velocity between 3-3.4m/s.更多还原