北京水务Issue(1)：66-72,7.DOI:10.19671/j.1673-4637.2025.01.012
北沙河流域"23·7"特大暴雨洪水过程及受灾原因分析
Analysis of"23·7"extremely heavy rainstorm flood process and disaster in the Beisha River Basin
胡嘉 1刘晓林 2王盼 1贺国平 1单博阳 1陈洋2
作者信息
- 1. 北京市水利规划设计研究院 北京 100048
- 2. 北京市昌平区水务局 北京 102200
- 折叠
摘要
Abstract
Affected by the weakened low-pressure circulation and cold air from Typhoon Doksuri,Beijing experienced an unprecedented heavy rainstorm from July 29 to August 2,2023,leading to severe flooding in the Beisha River Basin of Changping District.To investigate the causes of the disaster,hydrological sur-veys and rationality analyses were conducted to reconstruct the flood evolution process of the Nankou and Baiyangcheng flood detention areas,as well as surrounding rivers in the upper reaches of the Beisha River Basin.The results showed that the flood peak flow of the main rivers in the upper reaches,such as Beixiaoy-ingxi River,ranged from 89 to 185 m3/s,with a recurrence period of 10 to 20 years.The peak flood flow in Gaoyakou Channel and Sijiazhuang River ranged from 756 to 886 m3/s,with a recurrence period of over 50 years.Extreme heavy rainfall and the lack of controlling infrastructure were the primary causes of the se-vere damage to infrastructure.The research findings provide a technical basis for the future planning,de-sign,and construction of river channels and flood detention areas in the Beisha River Basin.关键词
"23·7"流域性特大洪水/北沙河流域/洪水过程/受灾原因/防洪工程Key words
"23·7"watershed-wide major flood/Beisha River Basin/flood process/causes of dam-age/flood control projects分类
建筑与水利引用本文复制引用
胡嘉,刘晓林,王盼,贺国平,单博阳,陈洋..北沙河流域"23·7"特大暴雨洪水过程及受灾原因分析[J].北京水务,2025,(1):66-72,7.
