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) ›› 2004, Vol. 23 ›› Issue (1): 100-102.

• • 上一篇    下一篇

卡口河道河床演变规律初探 -以澜沧江曼厅河段为例

邓明文,1董玉文,2胡江,2疏玉清2   

  1. 1.云南省航务管理局,昆明650021;2.重庆交通学院河海建筑工程系,重庆400074
  • 收稿日期:2003-03-24 修回日期:2003-04-21 出版日期:2004-02-15 发布日期:2015-05-18
  • 作者简介:邓明文(1970-),男,云南会泽县人,工程师,主要从事航道整治、设计及监理工作
  • 基金资助:
    ?? 九五?? 交通部通达计划科研项目( 95-06- 02- 10) , 山区卡口河道水沙运行机理、演变规律及治理措施

Discussing the riverbed evolution ary regularity of the bottle-neck reach —Sampling manting river reach of Lancanjiang river

DEN Ming-wen, 1 DONG Yu-wen, 2 HU Jiang, 2 SHU Yu-qing2   

  1. 1.Shipping Board of Yunnan Province, Kuming 650021, China;2.Department of River & Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China)
  • Received:2003-03-24 Revised:2003-04-21 Online:2004-02-15 Published:2015-05-18

摘要: 以澜沧江曼厅卡口河段为例,通过概化定床河工模型和动床河工模型试验,探讨了卡口河道的平面形态,水 流特征及河床演变规律.得出以下结论:??卡口河道的水面线是折线型曲线;??河床演变具有洪冲枯淤、涨淤落冲、 上冲下淤等变动回水区河道的特性;??卡口河道涨水变形小、落水时会形成横向切割冲刷水流,导致边滩、河岸倒 塌拓宽,形成多汊道浅滩、散乱浅滩或游荡性浅滩等

关键词: 卡口河道, 河床演变, 澜沧江

Abstract: Selecting Manting river reach as the sample,the plain-form,characteristics of the flow and riverbed evolutionary regularity are discussed by generalized fixed-bed and mobile-bed river engineering model.Results show that the surface curve of the bottle-neck reach is polygonal line,and riverbed evolution represents the characteristics of fluctuating backwater area and plain tract such as scouring when water flooding,falling and at upper course ,filling when water rising ,in falling water stage and

Key words: bottle-neck reach, riverbed evolution, Lancanjiang

中图分类号: