地理研究

地理研究 ›› 1993, Vol. 12 ›› Issue (2): 37-46.doi: 10.11821/yj1993020005

• 论文 • 上一篇    下一篇

黄河下游断面形态与水沙输移关系及数学模拟方法

梁志勇, 曾庆华, 周文浩   

  1. 水利水电科学研究院
  • 收稿日期:1990-04-03 修回日期:1992-12-26 出版日期:1993-06-15 发布日期:1993-06-15

THE INTER-EFFECTS BETWEEN RIVER GEOMETRY AND FLOW AND SEDIMENT TRANSPORT AND ITS SIMULATING APPROACH

Liang Zhiyong, Zeng Qinghua, Zhou Wenhao   

  1. Institute of Water Concervancy and Hydroelectriral Power Research
  • Received:1990-04-03 Revised:1992-12-26 Online:1993-06-15 Published:1993-06-15

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27 | 2

摘要： 以前人对黄河下游的实测资料分析为基础,本文讨论断面形态与来水来沙关系、断面形态对输水输沙的影响,并根据实测资料,提出黄河下游弯段与直段断面冲淤变化的两种模式,建立了主流摆动及坍岸影响断面形态变化以及纵向冲淤量在断面的分布两种数学模拟方法。

关键词: 黄河, 断面形态, 数学模拟

Abstract: Based on the researches of the field data of the Lower Yellow River,the inter-effects between channel geometry and flow and sediment transport have been analysed and two patterns of scour-fill changes in river bends and straight reaches have been suggested.The effects of channel geometry on flow and sediment transport could be estimated through the following eqationsin which are usually not equal to unity,The narrower the cross-section is,the higher the values of β and α.The role of flow and sediment transport on cross section could be considered by eqs.(27) to (30).

Key words: channel geometry, mathematical simulating, the Yellow River