- This tool is for calculating vertical stress increment in soil induced by the applied uniform load, as shown in the figure above.
- The soil layer is assumed as homogeneous, elastic and isotropic.
- For the Boussinesq method, the vertical stress increment calculated is for the position at the depth z below the point P (x
_{p},y_{p}). - For the approximate 2:1 method, the vertical stress increment calculated is only for the position at the depth z below the center point (0,0).
- All the input parameters except the coordinates of point P should be positive.
- For "nan", "0" or "inf" displayed in Results, please check your input parameters.

**Vertical soil stress incerment**

*Boussinesq Method (any point)*

Δσ_{z}(kN/m^{2}) =

*Approximate 2:1 Method (center point)*

Δσ_{z}(kN/m^{2}) =