长江科学院院报2017，Vol.34Issue(5)：22-26,5.DOI:10.11988/ckyyb.20160122
三峡工程蓄水后宜昌站水流特性变化及测验措施
Variation and Test Measures of Flow Characteristics atYichang Station after Impoundment of Three Gorges Project
伍勇 1柳鑫 2龙飞 1任伟1
作者信息
- 1. 长江水利委员会 长江三峡水文水资源勘测局, 湖北 宜昌 443000
- 2. 三峡大学 水利与环境学院,湖北 宜昌 443002
- 折叠
摘要
Abstract
In order to explore the flow characteristics of hydrological stations after reservoir impoundment of Three Gorges project,we took Yichang station as an example and analyzed the characteristics of water level and flood according to measured data from 2003 to 2014.Results showed that water level fluctuation intensified and water level decreased under the same discharge,the highest annual water level declined and the lowest water level raised.The duration of mid-low water level increased and its discharge varied in daily scale;Moreover,annual minimum discharge tended to increase and gradually kept stable at 6 000 m3/s.Since annual maximum discharge was under the control of regulation and impoundment of Three Gorges reservoir,the duration of flood peak lasted longer and annual discharge varied with longer low flow period and shorter flood period.Relationship between mid-low water level and discharge showed a tendency of many single lines.Therefore,according to current characteristics of water flow,we should adjust the methods of collecting water level and discharge data to meet the need of compilation.关键词
三峡工程/蓄水/宜昌站/水流特性/测验措施Key words
Three Gorges project/impoundment/Yichang station/flow characteristics/test measures分类
建筑与水利引用本文复制引用
伍勇,柳鑫,龙飞,任伟..三峡工程蓄水后宜昌站水流特性变化及测验措施[J].长江科学院院报,2017,34(5):22-26,5.
