One-Layer System - Boussinesq Theory

Boussinesq s theory (Boussinesq 1885) was developed at the end of the 19th century. Even though Boussinesq s theory is not currently used in multi-layer pavement engineering, it was the basis for the development of all subsequent stress/strain distribution theories. Boussinesq s theory refers to only one layer of uniform and homogeneous material such as, by assumption, soil material-subgrade. 

It is noted that all the above equations are independent of the modulus of elasticity, since the layer was considered elastic and uniform, and the vertical compression stress is independent of Poisson s ratio. 

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