长江中游沙市河段河床演变分析及趋势预测

Analysis of river bed evolution and prediction of its trend for Shashi Section in middle reach of the Changjiang River

通过分析认为:太平口心滩存在被解体的可能;腊林洲高边滩滩头将继续冲蚀后退;守护当前的三八滩对改善该河段的航道条件益处不大;目前的河型条件下要保证主、副通航孔都能通航可能是比较困难的;三八滩将继续变形、移位;该河段水流的动力轴线的变化和摆动是常态。

From date analysis, it＇ s considered that Taipingkou Central Bar may be disintegrated; the head of Lalinzhou Side Bar may be continually eroded and going back and it＇ s of no significance to defend this central island for improving the channel conditions at present. Perhaps, it＇s very difficult to guarantee both main and auxiliary navigable openings of the Shashi Bridge to be navigable at the present river condition. Sanba Beach will continually deform and displace. Changing and swing of the axis of flow power is normality.