河流侵蚀是指河道水流破坏地表,并冲走地表物质的过程。除了水流本身的冲蚀作用外,其携带的大量碎屑物质也会对河床产生冲蚀。按照流水对河床冲蚀作用方向的不同,可以分为下蚀和侧蚀,流水加深河床、增长河谷的作用称为下蚀。
研究结果表明,平谷地区的地表陡坎是河流侵蚀陡坎。
Study results indicate that the surface scarps of the Pinggu area are river erosion scarps.
该沟主要工程地质问题为边坡稳定性、渗透稳定性、河流侵蚀等。
The main engineering geological problems of the gully are slope stability, seepage stability and fluvial erosion, etc.
河流侵蚀形成陡坎的方向追随河流的冲沟方向,具不稳定性,并且陡坎的倾向沿河对称。
Direction of scarps caused by river erosion follows the river, is unstable and the tendency of scarps is symmetric along the river.
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