泥沙研究2025，Vol.50Issue(2)：10-16,24,8.DOI:10.16239/j.cnki.0468-155x.2025.02.002
基于最小水流功率原理的稳定河湾数学模型在塔里木河的应用
Application of a stable river bend mathematical model based on the principle of minimum flow power in the Tarim River
摘要
Abstract
Under the natural riverbank status of the Tarim River,huge investment is required for flood control and emergency rescue every year.It is urgent to study how to form effective flood control and emergency pro-tection plans on the basis of channel evolution patterns.Based on the principle of minimum water flow power,a mathematical model for constructing the stable bends in Tarim River has been established,and the stable bend morphology under different flow and sediment conditions in the lower reaches of the Tarim River is calcu-lated.The results show that when the flow power per unit length reaches to the lowest in the Qiala section of the lower Tarim River,the curvature of the river bend is 4.02.The creepage rate of the river bend is relatively small and the river channel is relatively stable accordingly.The shape of the river bend is mainly influenced by the sediment transport rate and sediment particle size of the incoming flow.As the sediment particle size and transport rate increase,the curvature of the river bend increases,the equilibrium slope of the bend increases,and the river channel tends to narrow and deepen.Finally,suggestions that are beneficial for the improvement of the Tarim River channel is proposed.Under current flow and sediment conditions,when the curvature of the Qiala section of the river bay is between 3.8 and 4.1,the river bank is less eroded by flow and the protection effect is optimal.关键词
冲积河流/最小水流功率/塔里木河/河道整治/数学模型Key words
alluvial river/minimum flow power dissipation/Tarim River/river regulation/mathematical model分类
水利科学引用本文复制引用
陈沛东,李晓庆,艾尼瓦尔·牙生..基于最小水流功率原理的稳定河湾数学模型在塔里木河的应用[J].泥沙研究,2025,50(2):10-16,24,8.基金项目
新疆维吾尔自治区塔里木河管理局基金项目(基于土工袋三角垛的塔里木河干流河湾防护方法研究) （基于土工袋三角垛的塔里木河干流河湾防护方法研究）
