Sediment Transport Mechanism and Grain Size Distributions in Stony Bed
Sediment Transport Mechanism and Grain Size Distributions in Stony Bed
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石层中泥沙运移机制及粒度分布
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
K. Osada
中科院分区：
文献类型：
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作者：
S. Fukuoka;K. Osada
石质河床河流的河床高程主要受卵石控制。根据常感寺河直河道的野外试验结果，确定了石质河床的河床变化机制、特征粒径组和河床稳定性。在这项研究中，我们分析了现场实验的结果，使用的蜿蜒河道的Joganji河。本文研究了含漂石和卵石的曲流河的特征粒度分布，以及曲流和护岸对河床高程和粒度分布的影响。此外，我们确定了无量纲的物理参数控制的形成稳定断面的石质河床。
The riverbed elevation of stony-bed rivers is controlled by boulders and cobbles. The authors have determined the mechanism of riverbed variation, characteristic grain size groups, and riverbed stability in stony-bed rivers from the results of field experiments on straight channels conducted in the Joganji River . In this study, we analyzed the results of field experiments using a meandering channel of the Joganji River. We examined characteristic grain-size distribution in meandering rivers with boulders and cobble and effects of meander and bank revetment on riverbed elevation and grain size distribution. Furthermore, we determined dimensionless physical parameter governing the forming of stable crosssections in stony-bed rivers.