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本文介绍了一个强潮河口—法国卢瓦尔(La Loire)河口最大浑浊带内含沙量的变化特征。由于河道不断地被疏浚,在主航槽内堆积了浮泥层,它与含沙量的关系十分密切。在一个潮周期内含沙量有两个基本的峰值,分别出现于涨始和落始,它们是由于浮泥的重新悬浮引起的。另外在落末还有由河口潮滩排出物形成的第三个峰值。在各个不同径流量、潮汐强度下取得的含沙量数据表明平均含沙量与这两个重要因素有极其密切的关系。
This paper presents the variation characteristics of sediment concentration in the maximum turbidity zone of the estuary of the Loire, France. Due to the continuous dredging of the river course, the floating muddy layer is deposited in the main navigation channel, which is closely related to the sediment concentration. There are two basic peaks of sediment concentration in a tidal cycle that occur at the beginning and the end of the flood, respectively, due to the resuspension of the mud. In addition, at the end there is a third peak formed by the estuarine tidal discharge. Sediment data obtained at various runoff and tide intensities indicate that the average sediment concentration is extremely closely related to these two important factors.