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引用本文:李涛,夏润亮,夏军强,张俊华,俞彦,吴丹.1999-2015年汛后小浪底水库典型支流口门淤积发展影响分析.湖泊科学,2021,33(5):1532-1540. DOI:10.18307/2021.0521
Li Tao,Xia Runliang,Xia Junqiang,Zhang Junhua,Yu Yan,Wu Dan.Deposition development in post-flood seasons between 1999-2015 at the entrance of typical tributaries of Xiaolangdi Reservoir, Yellow River*. J. Lake Sci.2021,33(5):1532-1540. DOI:10.18307/2021.0521
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1999-2015年汛后小浪底水库典型支流口门淤积发展影响分析
李涛1, 夏润亮1, 夏军强2, 张俊华1, 俞彦1, 吴丹1
1.黄河水利委员会黄河水利科学研究院, 郑州 450003;2.武汉大学水资源与水电工程国家重点实验室, 武汉 430072
摘要:
支流作为水库综合效益发挥的重要组成部分,其河口泥沙大幅淤积会影响水库综合效益的发挥.选取多沙河流水库黄河小浪底库区畛水、石井两支流作为典型实例,在对1999-2015年汛后水库的来水来沙、水库调度、库区干支流淤积量与形态分析基础上,研究干支流淤积形态的变化,重点研究支流口门拦门沙坎抬升变化特征,结果表明:支流的分流及淤积与入库流量、含沙量及库区的淤积形态有关.入库流量越大,支流分流比小,支流淤积规模小;入库含沙量越大,支流分沙比越大,支流淤积规模越大.
关键词:  小浪底水库  支流  拦门沙坎  淤积形态
DOI:10.18307/2021.0521
分类号:
基金项目:国家重点研发计划项目(2018YFC0407905,2017YFC0405505)、国家自然科学基金项目(51679103,51779100)、河南省杰出青年基金项目(202300410539)和黄河水利科学研究院中央级公益性科研院所基本科研业务费专项资金项目(HKY-JBYW-2019-08,HKY-JBYW-2020-21,HKY-JBYW-2020-07)联合资助.
Deposition development in post-flood seasons between 1999-2015 at the entrance of typical tributaries of Xiaolangdi Reservoir, Yellow River*
Li Tao1, Xia Runliang1, Xia Junqiang2, Zhang Junhua1, Yu Yan1, Wu Dan1
1.Yellow River Institute of Hydraulic Research, Yellow River Conservancy Commission, Zhengzhou 450003, P. R. China;2.State Key Laboratory of Water Resources and Hydropower Engineering, Wuhan University, Wuhan 430072, P. R. China
Abstract:
Tributary, as an important part of the comprehensive benefit of the reservoir will affect the comprehensive benefit of the reservoir, with the large sediment deposition in its estuary. Based on the analysis of water and sediment input conditions, reservoir operation, sedimentation volume and morphology of main and branch streams in the reservoir area, this paper studies the change of sedimentation morphology of main and tributaries, and focuses on the uplift characteristics of sandbank at the entrance of tributaries. The results show that the diversion and deposition of tributaries are related to the discharge and the sediment content of inflow, and the form of sedimentation in the reservoir area. The larger the inflow of the reservoir, the smaller the flow ratio and the siltation scale of the tributary. The larger the sediment concentration in the reservoir, the larger the sediment ratio and the larger the siltation scale of a tributary.
Key words:  Xiaolangdi Reservoir  tributary  bar at the entrance  sedimentation shape
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