| 李家峡水库变动回水区散乱浅滩整治研究 |
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| 引用本文： | 徐成伟.李家峡水库变动回水区散乱浅滩整治研究[J].水道港口,2010,31(6):594-598. |
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| 作者姓名： | 徐成伟 |
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| 作者单位： | 南京水利科学研究院水文水资源及水利工程科学国家重点实验室,南京210029 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 根据黄河上游李家峡水库变动回水区贵德吊桥至松巴峡河段水文、泥沙、地形及地质资料,在河床演变分析的基础上,应用经过验证的航道整治二维数学模型,初步研究了阿什贡散乱浅滩整治措施。该浅滩1996、1999及2000年主槽变化较大,这与该河段河床突然放宽及沙卵石推移质运动频繁等因素有关,建议采用塞支强干保滩固槽并辅以疏浚的工程措施。
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| 关 键 词： | 变动回水区 散乱浅滩 航道整治 数学模型 |
Study on regulation of separating shoals in backwater area of Lijiaxia Reservoir |
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| XU Cheng-wei.Study on regulation of separating shoals in backwater area of Lijiaxia Reservoir[J].Journal of Waterway and Harbour,2010,31(6):594-598. |
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| Authors: | XU Cheng-wei |
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| Institution: | XU Cheng-wei(State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Nanjing Hydraulic Research Institute,Nanjing 210029,China) |
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| Abstract: | According to the historical data of hydrology,sediment,terrain and geology,a fluvial process of Guide-Songbaxia reach in backwater area of Lijiaxia Reservoir in the upper Yellow River was analyzed.A validated 2-D mathematical model for waterway engineering was employed to study the regulation measures of Ashigong separating shoal preliminarily.The result shows that main channel of the shoal has great changes during 1996,1999 and 2000,which is related to the sudden relaxation of river bed and the frequent sand bed load movement.Engineering measures of blocking tributary to strengthen the main stream and protecting the bank bar to fix the main channel,with dredging supplemented are proposed. |
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| Keywords: | backwater area separating shoal waterway regulation mathematical model |
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