摘要
河床形态一直是生产实践中关心的问题。目前关于高含沙时的河相关系论述较少。作者根据河流自动调整的特征,建立了多沙河流河床形态新的模式,模式中重视水流河床的泥沙交换引起的床沙粒径的变化。以水槽实验资料和黄河支流实测资料为依据,对模式进行了论证。结果表明该模式能较好地反映高含沙河流河床形态的变化规律。
River morphology is an important subject with worldwide attention. But there are few achievements for the case of walker river with hyperconcentration. A new model has been established in this paper, considering discharge, sediment concentration and sediment size, which is verified with measured results.
关键词
高含沙水流
河床形态
河道演变
hypereoncentration flow, bedload, river morphology
