小浪底水库降水冲刷效果影响因素试验研究

wf(2014)

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Abstract
基于小浪底水库控制水位分别为210、220 m,洪水过程分别为12、16 d,库区淤积量分别约为32亿、42亿m3,进行了4组降水冲刷试验,研究了不同因素对库容恢复效果的影响。结果表明,相同边界条件和控制水位下,入库流量、含沙量越大,冲刷历时越长,则库区冲刷效果越好;相同边界条件和水沙条件下,控制水位越低,则库区冲刷效果越好;相同水沙条件和控制水位下,前期淤积面越高,则冲刷效果越好。
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Key words
later sediment-retaining period,water lowering and scouring,headward erosion,model test,Xiaolangdi Reservoir
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