人民黄河2025，Vol.47Issue(12)：54-59,6.DOI:10.3969/j.issn.1000-1379.2025.12.009
基于滞后响应模型的渭河下游冲淤量计算方法
Calculation Method of Erosion and Deposition in the Lower Reaches of Weihe River Based on Delayed Response Model
摘要
Abstract
The lag response is a significant characteristic of fluvial processes in alluvial rivers.However,research on the lag response law of erosion and deposition in the lower reaches of the Weihe River was currently limited.Firstly,the calculation model of the erosion and deposi-tion in the lower reaches of the Weihe River is established in this paper,based on the single-step analytical mode of the delayed response model.Secondly,the main influencing factors of the scour and fill in the lower reaches of the Weihe River were analyzed,and the calculation formula of the scour and fill in the lower reaches of the Weihe River in the equilibrium state was established by introducing the parameters of the average discharge,the median diameter of the suspended sediment,the average sediment concentration and the rise and fall of the Tong-guan elevation.Subsequently,the calculation method of scour and fill in the lower reaches of the Weihe River was established by combining it with the calculation model of scour and fill in the lower reaches of the Weihe River and the calculation formula of scour and fill in the equilib-rium state.The formula had been subjected to rigorous testing using measured data on water and sediment.The results of this testing demon-strate that the goodness of fit of the calculation method for cumulative erosion and deposition in the Xianyang-Lintong reach,the Lintong-Hua-xian reach and the reach below Huaxian is 0.92,0.88 and 0.27,respectively.The data excluding 2010 and 2014 shows that the goodness of fit of the cumulative amount of erosion and deposition in the lower reaches of Huaxian County is 0.70.The formula presented in this paper has been demonstrated to demonstrate a high degree of adaptability in the calculation of the scour and fill volume in the lower reaches of the Weihe River.Furthermore,it has been shown to accurately reflect the adjustment law of the scour and fill volume in the lower reaches of the Weihe River with the change of water and sediment conditions.关键词
河床演变/冲淤量/滞后响应模型/渭河下游Key words
fluvial process/amount of scouring and silting/lagging response model/lower reaches of the Weihe River分类
建筑与水利引用本文复制引用
许晓阳,陈月君,魏欢,王平,胡恬,张晓华..基于滞后响应模型的渭河下游冲淤量计算方法[J].人民黄河,2025,47(12):54-59,6.基金项目
国家重点研发计划项目(2023YFC3206203) （2023YFC3206203）
广西重点研发计划项目(2023AB24010036) （2023AB24010036）
中央级公益性科研院所基本科研业务费专项(HKY-JBYW-2023-18) （HKY-JBYW-2023-18）
水利部重大科技项目(SKS-20222061) （SKS-20222061）
