中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2000, Vol. 19 ›› Issue (4): 71-76.

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嘉陵江何家碛采砂方案平面二维数学模型

周华君   

  1. 重庆交通学院 河海建筑工程系, 重庆 400074
  • 收稿日期:2000-03-22 修回日期:2000-04-18 出版日期:2000-08-21 发布日期:2016-11-09
  • 作者简介:周华君(1962-),男,浙江慈溪人,重庆交通学院副教授,博士,从事河流海岸工程数学模型及物理模型研究

Two-dimensional mathematical model of excavation scheme on Hejia bar of Jialing river

ZHOU Hua-jun   

  1. Department of River and Ocean Engineering, Chongqing Jiaotong Institute, Chongqing 400074, China
  • Received:2000-03-22 Revised:2000-04-18 Online:2000-08-21 Published:2016-11-09

摘要: 采用正交曲线坐标系下的河道平面二维数学模型,研究了嘉陵江何家碛边滩采砂后河道流势、流态、滩槽流速、主流位置、水面高程及比降的变化规律,预测了采砂方案完成后卵石推移质输沙率变化及其对航道的影响,并对格形开挖和平整开挖方案进行了比较分析

关键词: 边滩采砂, 二维数学模型, 航道

Abstract: Variations of flow pattern,flow velocity in deep pool and side bar,mainstream thread,and water surface,caused by excavation project,are investigated by two-dimensional mathematical model in an orthogonal curvilinear coordinate system.The change of bed-load transport rate,and redeposition rate are predicted.The influences of the excavation project on navigation are analyzed.Grid-type and flat-type excavation alternatives are proposed and discussed.

Key words: excavation on bar, 2-D mathematical model, waterway

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