# 10. Slope with pre-existing fault
In this example we consider the stability of slope with, and without, a fault line.

![**`Figure 10.1`** Slope geometry.](../../static/example-figures/example10/Geometry.png)

![**`Figure 10.2`** Slope failure surface without fault line.](../../static/example-figures/example10/Result.png)

![**`Figure 10.3`** Slope failure surface with fault line.](../../static/example-figures/example10/Result_fault.png)
## Code

:::code source="../../static/code-files/Example10.py" :::