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库区泥沙对溃坝洪水影响分析
引用本文:郭维东,康国亮.库区泥沙对溃坝洪水影响分析[J].人民长江,2011,42(17).
作者姓名:郭维东  康国亮
作者单位:沈阳农业大学水利学院,辽宁沈阳,110866
摘    要:针对淤积型水库溃坝洪水计算中是否考虑泥沙因素影响、产生怎样影响的问题,利用M IKE21中的水动力模块(HD)与输沙模块(ST)耦合,模拟淤积水库清水、浑水溃坝洪水演进过程,并通过溃坝峰顶流量值、溃坝最大水位值及溃坝洪水淹没历时的变化,分析泥沙因素对水库溃坝洪水影响。结果表明:库区泥沙可使下游各断面溃坝峰顶流量值变小,淹没历时变长;泥沙的中值粒径对峰顶流量、水位、淹没历时有影响。

关 键 词:溃坝洪水演进  数值模拟  中值粒径  影响分析  库区泥沙  

Analysis on influence of sediment in reservoir on dam-break flood
GUO Weidong,KANG Guoliang.Analysis on influence of sediment in reservoir on dam-break flood[J].Yangtze River,2011,42(17).
Authors:GUO Weidong  KANG Guoliang
Institution:GUO Weidong,KANG Guoliang(College of Water Resources,Shenyang Agricultural University,Shenyang 110866,China)
Abstract:To the question whether considering the influence of sediment factor and what influence have in the process of dam-break flood routing in the sedimentation-type reservoir,the Hydrodynamic Module(HD) and Sand Transport Module(ST) coupling of MIKE21 were used to simulate the dam-break flood routing of clear water and turbid water.Meanwhile,the influence of sediment in the reservoir on dam-break flood was analyzed through peak flow discharge,maximum water level and dam-break flood duration changes.The result s...
Keywords:dam-break flood routing  numerical simulation  median diameter  influence analysis  sediment in reservoir  
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