# Stability of slope subjected to unconfined seepage
In this example we consider the stability of a layered slope. The seepage pressure distribution and the location of the phreatic surface are not known a priori except that the groundwater table is located at the foot of the slope and the conditions at a distance of 15m from the crest of the slope correspond to hydrostatic conditions.

![**`Figure 8.1`** Geometry of layered slope.](../../static/example-figures/example8/Geometry.png)

![**`Figure 8.2`** Resultant saturation in the embankment.](../../static/example-figures/example8/Saturation.png)

![**`Figure 8.3`** Collapse mechanism of the slope.](../../static/example-figures/example8/SlipSurface.png)
## Code

:::code source="../../static/code-files/Example8.py" :::