基于SWMM的城市暴雨内涝风险分析——以南昌工程学院瑶湖校区为例
Risk analysis of urban storm waterlogging based on SWMM:a case study of Yaohu Campus of Nanchang Institute of Technology
张景嵘 1刘卫林 1杨鑫 1钟璟颢 1李笑阳 1万一帆 2刘丽娜1
作者信息
- 1. 南昌工程学院水利与生态工程学院,江西南昌 330099
- 2. 三峡智慧水务科技有限公司,江西南昌 330022
- 折叠
摘要
为解决城市内涝问题,以南昌工程学院瑶湖校区为研究区,利用SWMM构建了暴雨洪水管理模型,模拟不同重现期暴雨情况下研究区淹没时长和积水深度的空间分布,结合高程分布对研究区进行了暴雨内涝风险区划分,并对研究区内涝成因进行了分析.结果表明:SWMM模型的模拟结果与实测结果接近,模拟效果较好;随着暴雨重现期的增加,研究区内的淹没时长和积水深度增加,遭遇50 年一遇暴雨时内涝中高风险区面积相较于5 年一遇暴雨时增加了12.51%,其中次高风险区面积增加了9.94%,中等和高风险区面积增加较小.研究结果可为海绵城市建设提供参考.
Abstract
To solve the urban flooding problem,a storm flood management model was constructed based on SWMM with Yao-hu Campus of Nanchang Institute of Technology used as the study area to simulate the spatial distribution of inundation du-ration and the spatial distribution of waterlogging depth in the study area under different recurrence period storm process ca-ses,and the risk zoning of storm flooding in the study area was carried out by combining the elevation distribution.The re-sults show that the simulation results of the SWMM model are close to the measured results,and the simulation effect is good;with the increase of the rainstorm recurrence period,the inundation time and water depth in the region increased.The area of the medium-high risk area of waterlogging in the 50-year rainstorm increased by 12.51%compared with that in the 5-year rainstorm,and the area of the second-high risk area increased by 9.94%,while the increase of the high-risk area was small.The results can provide reference for the construction of sponge city.
关键词
SWMM模型/模拟/城市内涝Key words
SWMM model/simulation/urban waterlogging引用本文复制引用
基金项目
江西省优势科技创新团队建设项目(20171BCB24012)
出版年
2024
国家科技期刊平台
NSTL
万方数据