| 小浪底水库运用以来库区淤积形态分析 |
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| 引用本文： | 马怀宝,张俊华,陈书奎,王婷.小浪底水库运用以来库区淤积形态分析[J].人民黄河,2011,33(11). |
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| 作者姓名： | 马怀宝 张俊华 陈书奎 王婷 |
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| 作者单位： | 黄河水利科学研究院水利部黄河泥沙重点实验室,河南郑州,450003 |
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| 基金项目： | 水利部公益性行业科研专项(200801024,200901015); 中央级公益性科研院所基本科研业务费专项(HKY-JBYW-2007-09) |
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| 摘 要： | 分析了小浪底水库运用以来库区的淤积形态,结果表明:水库非汛期蓄水拦沙,淤积形态变化不大;调水调沙期间及汛期发生洪水时,淤积形态受水沙条件、边界条件及水库运用方式的影响而调整,截至2010年汛后,小浪底全库区断面法计算淤积量为28.225亿m3,其中干、支流淤积量分别为22.395亿m3、5.830亿m3,支流淤积量占总淤积量的20.7%;库区干流呈三角洲淤积形态,并逐步向下游推进,支流口门淤积较为平整,支流河床纵剖面沿流向呈现一定的坡降;畛水沟口形成了高10.5 m的拦门沙坎,建议开展畛水拦门沙坎的防治研究。
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| 关 键 词： | 泥沙淤积 拦门沙 异重流 淤积形态 小浪底水库 |
Analysis of Deposition Morphology of Xiaolangdi Reservoir since Operation |
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| MA Huai-bao,ZHANG Jun-hua,CHEN Shu-kui,WANG Ting.Analysis of Deposition Morphology of Xiaolangdi Reservoir since Operation[J].Yellow River,2011,33(11). |
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| Authors: | MA Huai-bao ZHANG Jun-hua CHEN Shu-kui WANG Ting |
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| Affiliation: | MA Huai-bao,ZHANG Jun-hua,CHEN Shu-kui,WANG Ting(Key Laboratory of Yellow River Sediment Research,MWR,Yellow River Institute of Hydraulic Research,Zhengzhou 450003,China) |
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| Abstract: | The paper studied the deposition morphology of Xiaolangdi Reservoir since operation.The results indicate that in non-flood season,the reservoir is in impoundment and sediment retention operation,and deposition morphology has little change.During regulated discharge regime and flood season of the Yellow River,affected by water and sediment conditions,boundary conditions and reservoir operation mode,deposition morphology changes constantly.By post-flood season of 2010,the amount of sediment in Xiaolangdi Rese... |
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| Keywords: | sediment deposition channel-mouth bar density current deposition morphology Xiaolangdi Reservoir |
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