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2012年洪水对黄河内蒙古段冲淤影响

李子文, 秦毅, 陈星星, 王文海, 吴秋琴

李子文, 秦毅, 陈星星, 王文海, 吴秋琴. 2012年洪水对黄河内蒙古段冲淤影响[J]. 水科学进展, 2016, 27(5): 687-695. DOI: 10.14042/j.cnki.32.1309.2016.05.006
引用本文: 李子文, 秦毅, 陈星星, 王文海, 吴秋琴. 2012年洪水对黄河内蒙古段冲淤影响[J]. 水科学进展, 2016, 27(5): 687-695. DOI: 10.14042/j.cnki.32.1309.2016.05.006
LI Ziwen, QIN Yi, CHEN Xingxing, WANG Wenhai, WU Qiuqin. Effects of the coarse sediment movement in the flood on Inner Mongolia Reach of Yellow River in 2012[J]. Advances in Water Science, 2016, 27(5): 687-695. DOI: 10.14042/j.cnki.32.1309.2016.05.006
Citation: LI Ziwen, QIN Yi, CHEN Xingxing, WANG Wenhai, WU Qiuqin. Effects of the coarse sediment movement in the flood on Inner Mongolia Reach of Yellow River in 2012[J]. Advances in Water Science, 2016, 27(5): 687-695. DOI: 10.14042/j.cnki.32.1309.2016.05.006

2012年洪水对黄河内蒙古段冲淤影响

基金项目: 国家重点基础研究发展计划(973计划)资助项目(2011CB403305);陕西省重点科技创新团队资助项目(2012KCT10)
详细信息
    作者简介:

    李子文(1986-),女,山东淄博人,博士研究生,主要从事水文泥沙、水文水资源研究。E-mail:ccnnhysxm@126.com

    通讯作者:

    秦毅,E-mail:13571991500@126.com

  • 中图分类号: TV147

Effects of the coarse sediment movement in the flood on Inner Mongolia Reach of Yellow River in 2012

Funds: The study is financially supported by the National Basic Research Program of China(No.2011CB403305).
  • 摘要: 2012年洪水是内蒙古河段1989年以来历时最长、洪峰流量最大的洪水过程。为了解粗泥沙对黄河内蒙古段河床冲淤变化的影响,依据宽河谷河段巴彦高勒、三湖河口和头道拐水文站实测资料,分析了内蒙古河道2012年洪水水沙特征,通过计算推移质输沙量和比较断面河底变化,探讨了粗泥沙对河底调整的影响。结果表明:2012年洪水造成粗泥沙在上游段冲刷、下游段淤积;固定低水位下过流断面存在涨冲落淤的规律;洪水过后,巴彦高勒和三湖河口低水位面积分别扩大了19 m2和29 m2,头道拐减小约100 m2。由于粗泥沙排沙不平衡,底部河床的真正高程并没有降低,防洪风险依然存在。
    Abstract: Coarse sediment movement in rivers is one of the key factors in causing changes in channel characteristics. The duration of the 2012 flood in the Inner Mongolia Reach of the Yellow River (IMYR) was the longest and the peak discharge was the biggest since 1989. The aim of this study was to investigate the impact of the movement of coarse sediment during the 2012 flood on the riverbed of IMYR, a coarse sand reach. The wide valley reach of IMYR is bounded by the Bayangaole, Sanhuhekou and Toudaoguai gauging stations from upstream to downstream. The coarse sand in the channel is one of the most important factors impacting riverbed erosion and deposition. Using real observational data, we analyzed the water and sediment characteristics of IMYR during the 2012 flood. By calculating sediment discharge of the bed load and comparing the river bottom of the fixed sections during the flood, this paper assesses the effect of the movement of coarse sediment on the river bottom adjustment. The results show that, ① the coarse sediment was scoured in the upstream part of the IMYR and deposited downstream during the flood in 2012; ② the open area beneath the fixed low water level followed the rule of scouring during the flood rising period and deposition during the flood falling period; ③ the open area under the low water at Bayangaole and Sanhuhekou gauging station expanded by 19 m2 and 29 m2 respectively, while the same at Toudaoguai gauging station decreased by approximately 100 m2. Owing to the imbalance of coarse sediment ejection after the flood, the actual elevation of the riverbed bottom did not get lower, and the flood risk remains at a similar level.
  • 期刊类型引用(6)

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    2. 张晓华,郑艳爽,尚红霞,丰青. 黄河巴彦高勒-头道拐河段泥沙冲淤调整特点. 水利水运工程学报. 2022(03): 41-49 . 百度学术
    3. 冀鸿兰,樊宇,翟涌光,罗红春,张宝森,牟献友. 1988-2018年黄河内蒙古段河道边界演变特征及影响因素. 水土保持通报. 2020(05): 242-249+267 . 百度学术
    4. 岳志春,苑希民,田福昌,张红武. 黄河宁蒙河段近期水沙特性及冲淤过程研究. 天津大学学报(自然科学与工程技术版). 2019(08): 810-821 . 百度学术
    5. 秦毅,李子文,刘强,李时,陈星星. 黄河内蒙段泥沙组成与力学运动特征. 水利水运工程学报. 2017(03): 16-24 . 百度学术
    6. 秦毅,李子文,刘强,李时. 黄河内蒙河段凌汛期河床变化的特点及其带来的影响. 水利学报. 2017(11): 1269-1279 . 百度学术

    其他类型引用(6)

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  • 被引次数: 12
出版历程
  • 收稿日期:  2015-12-20
  • 刊出日期:  2016-09-24

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