水沙条件对大湖口河冲淤特性的影响

doi:10.3880/j.issn.1006-7647.2022.04.003

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水沙条件对大湖口河冲淤特性的影响

DOI:

10.3880/j.issn.1006-7647.2022.04.003

作者:

常留红 ^{^1,2}
常留红
长沙理工大学水利与环境工程学院,湖南长沙410114;洞庭湖水环境治理与生态修复湖南省重点实验室,湖南长沙410114
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覃瓶山 ^{^1,2}
覃瓶山
长沙理工大学水利与环境工程学院,湖南长沙410114;洞庭湖水环境治理与生态修复湖南省重点实验室,湖南长沙410114
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郑景琦 ^{^1,2}
郑景琦
长沙理工大学水利与环境工程学院,湖南长沙410114;洞庭湖水环境治理与生态修复湖南省重点实验室,湖南长沙410114
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刘晓群 ^³
刘晓群
湖南省水利水电科学研究院,湖南长沙410007
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孙文硕 ^{^1,2}
孙文硕
长沙理工大学水利与环境工程学院,湖南长沙410114;洞庭湖水环境治理与生态修复湖南省重点实验室,湖南长沙410114
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汤薇 ^{^1,2}
汤薇
长沙理工大学水利与环境工程学院,湖南长沙410114;洞庭湖水环境治理与生态修复湖南省重点实验室,湖南长沙410114
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作者单位:

(1.长沙理工大学水利与环境工程学院,湖南长沙410114;2.洞庭湖水环境治理与生态修复湖南省重点实验室,湖南长沙410114;3.湖南省水利水电科学研究院,湖南长沙410007)

作者简介:

常留红(1979—),女,副教授,博士,主要从事水工结构及其水动力特性研究。E-mail:claire886@163.com

通讯作者:

中图分类号:

TV122

基金项目:

国家自然科学基金(51809022)；湖南省水利科技项目(XSKJ2018179-41)

Influence of water and sediment conditions on scouring and silting characteristics of Dahukou River

Author:

CHANG Liuhong ^{^1,2}
CHANG Liuhong
School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114,China;Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114,China
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QIN Pingshan ^{^1,2}
QIN Pingshan
School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114,China;Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114,China
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ZHENG Jingqi ^{^1,2}
ZHENG Jingqi
School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114,China;Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114,China
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LIU Xiaoqun ^³
LIU Xiaoqun
Hunan Institute of Water Resources and Hydropower Research, Changsha 410007,China
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SUN Wenshuo ^{^1,2}
SUN Wenshuo
School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114,China;Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114,China
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TANG Wei ^{^1,2}
TANG Wei
School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114,China;Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114,China
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Affiliation:

(1.School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114,China;2.Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114,China;3.Hunan Institute of Water Resources and Hydropower Research, Changsha 410007,China)

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摘要:

为了解水沙条件变化对大湖口河冲淤特性的影响,基于二维水沙数学模型,模拟了典型年份洪、中、枯不同水沙条件下该河段冲淤情况,分析泥沙冲淤及河势变化。结果表明:大湖口河原始冲淤表现为第一、二、四段淤积,第三段冲刷,但水沙条件的变化,使得大湖口河河床冲淤整体呈现出上淤下冲的态势,河道断面冲淤表现为左淤右冲,冲淤程度进一步加强。随着上游来水来沙的变化,大湖口河将逐渐向单一、弯曲性河道演变,从而对大湖口河的防洪产生一定的影响。

关键词:水沙条件;河势变化;河道冲淤;大湖口河

Abstract:

To understand the influence of water and sediment conditions on scouring and silting characteristics of the Dahukou River,based on a two-dimensional numerical model of water and sediment, the scouring and silting of the river reach under different water and sediment conditions in typical years of flood, normal and dry were simulated, and the changes of sediment scouring and silting and river morphology variation were analyzed. The results show that the original scouring and silting of the Dahukou River is represented by the first, second and fourth sections of silting, and the third section of scouring. The change of water and sediment conditions makes the riverbed scouring and silting of the Dahukou River generally show the trend of silting upstream and scouring downstream. The scouring and silting of the river section are characterized by silting along the left bank and scouring along the right bank with enhanced degree of scouring and silting. With the change of incoming water and sediment in the upstream, the Dahukou River gradually evolves into a single and curved channel, which may have certain impacts on the flood control. Keywords: water and sediment conditions;river morphology variation;river scouring and silting; Dahukou River 〖FL

Key words:water and sediment conditions;river morphology variation;river scouring and silting; Dahukou River

引用本文

常留红,覃瓶山,郑景琦,等.水沙条件对大湖口河冲淤特性的影响[J].水利水电科技进展,2022,42(4):15-20.(CHANG Liuhong, QIN Pingshan, ZHENG Jingqi, et al. Influence of water and sediment conditions on scouring and silting characteristics of Dahukou River[J]. Advances in Science and Technology of Water Resources,2022,42(4):15-20.(in Chinese))

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收稿日期:2021-04-28
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在线发布日期: 2022-07-07
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