三峡大学学报（自然科学版）2013，Vol.35Issue(1)：26-29,4.
沮漳河堤防加固前后洪水过洪能力分析
Analysis of Flood Garrying Capacity before or after Reinforcing Embankments in Juzhang River
李琼 1周绍文 1朱芳 1宋林旭2
作者信息
- 1. 宜昌市水文水资源勘测局,湖北宜昌 443002
- 2. 三峡大学水利与环境学院,湖北宜昌 443002
- 折叠
摘要
Abstract
The main stream of the Juzhang River has been one of the most difficult problems of flood control in Yichang. It's an obvious contradiction in flood controlling. The main flood control measures are strengthening the embankments, reservoir operation, making area for flood detention zones,etc. Intense rainfalls in July 1996 and July 2007 (9607, 0707) the Juzhang River appeared two large flood processes. The result indicated: The peak discharge of the Juzhang River was 2 380 m3 · s-1 and peak water level was 50. 15 m in Herong hydrometric station in 9607. After engineering measures of burden the levee distances and reinforcement of levee, it was not accord with hydrological monitoring routine when the peak discharge was only 1950 m3 · s-1 while the peak water level was for 50. 07m in 0707. Through a comparative analysis of multiple factors, the result shows that the flood fluctuation rate, roughness and water surface gradient, reservoir operation are the main reasons caused the abnormality. This conclusion can provide scientific basis for flood forecast and control in the Juzhang River.关键词
沮漳河/洪水特性/水库调度/涨落率Key words
Juzhang River/flood characteristics/reservoir operation/fluctuation rate分类
天文与地球科学引用本文复制引用
李琼,周绍文,朱芳,宋林旭..沮漳河堤防加固前后洪水过洪能力分析[J].三峡大学学报（自然科学版）,2013,35(1):26-29,4.
