# 1. Shallow foundation
This example deals with the an eccentrically loaded foundation. The soil is
saturated clay and the analysis is to be performed assuming undrained conditions. For this purpose a total stress analysis approach is adopted. The soil is modeled by means of the Tresca model with an undrained shear strength $s_u = 30$ kPa and an undrained Young’s modulus of $E_u = 40$ MPa. The foundation is modeled as Rigid material with a unit weight of $24$ kN/m3.

![**`Figure 1.1`** Shallow foundation geometry.](../../static/example-figures/example1/Geometry.png)

![**`Figure 1.2`** Shallow foundation limit analysis failure surface.](../../static/example-figures/example1/Result.png)

## Code

:::code source="../../static/code-files/Example1.py" :::