东北水利水电2026，Vol.44Issue(8)：41-45,5.
径流和潮流耦合作用对辽河口拦门沙形成的影响研究
Influence of runoff-tide coupling on the formation of the estuary bar in the Liaohe Estuary
摘要
Abstract
The estuary bar is a typical sedimentary landform in estuaries.To elucidate the formation mechanism and evolutionary patterns of the estuary bar in the Liaohe Estuary,this study employs numerical simulation methods,with three levels of runoff condi tions and three levels of tidal level conditions,to conduct multi-scenario comparative simulation experiments.The influences of runoff,tidal current,and their coupled effects on the morphology,elevation,and distribution range of the estuary bar are systematically in vestigated.The results indicate that tidal current is the core factor determining the peak elevation of the estuary bar,whereas runoff has a weak influence on the limiting elevation of the estuary bar.Under identical runoff conditions,the estuary bar elevation is positively corre lated with tidal level,and tidal level variations primarily modify the local topographic structure.Higher discharge rates are associated with more rapid sediment supply and a faster rate of estuary bar elevation increase.However,a notable time lag exists in achieving the equilibrium between scour and deposition,and the shaping effect of runoff on the overall riverbed morphology is significantly stron ger than that of tidal level.The study confirms that the dynamic coupling effect of runoff and tidal current is the key controlling factor in the development and evolution of the estuary bar in the Liaohe Estuary.The findings can enrich the theory of estuary bar dynam ic evolution in northern estuaries,and provide a scientific theoretical basis and technical reference for channel maintenance,flood con trol management,and ecological restoration in the Liaohe Estuary.关键词
拦门沙/径流/潮流/数值模拟/地形演变/辽河口Key words
estuary bar/river runoff/tidal current/numerical simulation/terrain evolution/Liaohe Estuary分类
建筑与水利引用本文复制引用
陈晓辉,黎剑华,郭咏辉,申富林,王闻恺..径流和潮流耦合作用对辽河口拦门沙形成的影响研究[J].东北水利水电,2026,44(8):41-45,5.基金项目
广铁职院新引进人才科研启动项目《沿海地区桩周围非饱和软土受振动荷载的桩-土耦合机理研究》(项目编号:GTXYR2413) （项目编号:GTXYR2413）
