三峡工程蓄水后宜昌站水流特性变化及测验措施

doi:10.11988/ckyyb.20160122

院报 ›› 2017, Vol. 34 ›› Issue (5): 22-26.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

伍勇¹, 柳鑫², 龙飞¹, 任伟¹

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

收稿日期:2016-02-17 修回日期:2016-04-08 出版日期:2017-05-01 发布日期:2017-05-17
通讯作者: 柳鑫(1990-),男,湖北宜昌人,硕士研究生,主要从事水文测验和整编技术及分析,(电话)15272128235(电子信箱)565299779@qq.com。
作者简介:伍勇(1967-),男,湖北长阳人,高级工程师,主要从事水文测验和整编技术及分析工作,(电话) 13872570801(电子信箱)252743766@qq.com。

Variation and Test Measures of Flow Characteristics at Yichang Station after Impoundment of Three Gorges Project

WU Yong¹, LIU Xin², LONG Fei¹, REN Wei¹

1.Three Gorges Bureau of Hydrological and Water Resources Survey, Changjiang Water Resources Commission,Yichang 443000, China;
2.College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China

Received:2016-02-17 Revised:2016-04-08 Online:2017-05-01 Published:2017-05-17

摘要/Abstract

摘要： 为了探究三峡工程蓄水后水文站水流特性,以宜昌站为例,利用蓄水后多年实测资料,分析宜昌站水位特性和洪水特性。结果表明:水位波动性增强,同流量级下水位降低,历年最高水位下降、最低水位抬高,中低水位持续时间增长;中低水位流量呈现日周期变化,年最小流量有增大趋势,并逐渐稳定在6 000 m³/s左右,年最大流量因三峡水库调蓄得到控制,峰顶持续时间变长,年内水量变化为枯期增加、汛期减少,中低水位-流量关系呈多条单一线变化趋势。因此,根据现有水流特性变化,需调整水位和流量资料收集方式,以满足整编需要。

关键词: 三峡工程, 蓄水, 宜昌站, 水流特性, 测验措施

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.

Key words: Three Gorges project, impoundment, Yichang station, flow characteristics, test measures

中图分类号:

TV147

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]. 院报, 2017, 34(5): 22-26.

WU Yong, LIU Xin, LONG Fei, REN Wei. Variation and Test Measures of Flow Characteristics at Yichang Station after Impoundment of Three Gorges Project[J]. JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI, 2017, 34(5): 22-26.

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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 at Yichang Station after Impoundment of Three Gorges Project

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