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过渡段横断面形态对弯道横向比降的影响研究

DOI: 10.3969/j.issn.1674-0696.2013.04.32, PP. 681-686

Keywords: 连续弯道,复式河槽,横向比降,successivebends,compoundsection,transverseslope

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Abstract:

:?以长江叙渝段为原型建立连续弯道概化模型,进行定床水流试验。结果表明:过渡段的边界形态对连续弯道横比降分布存在明显影响,与单一矩形弯道中以弯顶呈完全对称分布特征不同,弯曲放宽复式河槽边界条件下弯道的横比降呈不对称分布,其后弯区域比降大于前弯。建立了反映边滩形态因子的最大横比降和全弯道横比降分布公式。

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