Modulus of Subgrade Reaction and Shear Capacity According to Barwaschow

Calculation of subgrade reaction modulus and shear capacity according to Barwaschow for two-parameter soil model

\begin{array}{l} c_{1, z} = \frac{E_{0}}{H \cdot (1 - ν ²)} \\ c_{2, v} = \frac{E_{0} \cdot H}{20 \cdot (1 - ν ²)} \end{array}

E₀	Modulus of elasticity of the soil
v	Poisson's ratio of the soil
H	Foundation thickness