Rainwater infiltration, one of main factors inducing rock slope to slip, changes distribution of seepage flow field in unsaturated zone of slope.
雨水入渗改变了岩质边坡非饱和区渗流场的分布，是引发边坡滑坡的主要因素之一。
Darcy's law can be applied to unsaturated flow subject to certain restrictions on seepage velocity.
达西定律也适用于渗透速度有一定限制的非饱和水流。
But at present, the effect of seepage flow in unsaturated soils is often ignored in slope stability analysis, such as earth DAMS, masonry DAMS and dikes.
但目前，在土石坝渗流安全分析和坝坡稳定分析中较少考虑非饱和土渗流作用的影响。
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