北京水务Issue(1)：21-26,6.DOI:10.19671/j.1673-4637.2025.01.004
基于HEC-RAS的大石河"23·7"洪水淹没分析
Inundation analysis of the"23·7"flood in Dashi River based on HEC-RAS
赵振亚 1曹振 1许丹 1刘冀宏 2周黎1
作者信息
- 1. 北京市水利规划设计研究院 北京 100048
- 2. 北京市水务规划研究院 北京 101117
- 折叠
摘要
Abstract
In the flood peak flow of Manshui River Hydrological Station of Dashi River is 5 300 m3/s,ranking first in history.In order to re-analyze the flood inundation scenario,based on the HEC-RAS model,the evolution process of the"23·7"flood in the Dashi River Plain was simulated by field in-vestigation and satellite interpretation of the flood inundation range.The results showed that the simu-lated total inundation area of the Manshui River Hydrological Station to the provincial boundary was 77.38 km2.The simulated water level shows a negative deviation as a whole;the overall simulation error is controlled at 5％;after the implementation of the Dashi River improvement project and the Erdaohe Reservoir construction project,the submerged area of the Manshui River Hydrological Station to the provincial boundary will be reduced by 49％.The research results provide technical reference for river planning and design.关键词
"23·7"洪水/淹没分析/HEC-RAS/大石河Key words
"23·7"flood/inundation analysis/HEC-RAS/Dashi River分类
水利科学引用本文复制引用
赵振亚,曹振,许丹,刘冀宏,周黎..基于HEC-RAS的大石河"23·7"洪水淹没分析[J].北京水务,2025,(1):21-26,6.
