As a result of fluvial scouring and aggrading the riverbed, the alluvial layer is fluid-saturated porous medium.
由于河流冲刷和河床加积,沉积层多饱和多孔。
2
As aresult of fluvial scouring and aggrading the riverbed, the alluvial layer of circular-arclayered alluvial valleys is fluid-saturated porous medium.