| 定床变弯度曲流河边滩的水槽模拟实验 |
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| 引用本文： | 刘忠保,曹耀华.定床变弯度曲流河边滩的水槽模拟实验[J].石油天然气学报,1994,16(4):34-38,45. |
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| 作者姓名： | 刘忠保 曹耀华 |
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| 作者单位： | 江汉石油学院石油地质系 |
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| 基金项目： | 中国石油天然气总公司部级资助 |
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| 摘 要： | 设计了一条河床及河岸均固定且河段曲率由上游至下游逐渐增大的入湖曲流河道，采用３组不同粒径的沙粒进行曲河边滩模拟实验，详细研究了不同粒径条件下定床曲流河的边滩分布特征，结果表明，曲流河边滩的分布，规模、形态及水动力特征均与河流弯曲系数关系密切，随着曲率增大，边滩上顶点向上游移动，边滩外缘的水下倾角也随之增大，边滩形状则由长条形到非对称弧形到对称弧形。
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| 关 键 词： | 河流 沉积 沉积特征 水槽 模拟实验 |
Flume Simulation about Point - Bars of Variable Curve Coefficience Meadering River in Fixed Bed |
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| Liu Zhongbao,Cao Yaohua, Zhang Chunsheng,Lai Zhiyun.Flume Simulation about Point - Bars of Variable Curve Coefficience Meadering River in Fixed Bed[J].Journal of Oil and Gas Technology,1994,16(4):34-38,45. |
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| Authors: | Liu Zhongbao Cao Yaohua Zhang Chunsheng Lai Zhiyun |
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| Abstract: | A fixed bed channel which the curve coefficience increases gradually was designed. Three groups of different sand in diameter are used to examine the distribution of the point bars in the meadering river. The results show that the distribution, shape, position of upperstream top point and the outer fringe dip of the point bars relate to the curve coefficience of the river. |
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| Keywords: | fluvial deposit depositional feature (point bars) (flume simulation ) |
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