Consideration of Realistic Soil Behaviour in Road Structures: A Numerical Investigation on the Cyclic Interaction between Road Struture and Subsoil
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Numerical investigations of the structural behaviour of pavement structures are often the subject of research. Many of these studies are mainly concerned with the detailed modelling of the road-tyre interaction or the realistic modelling of the road surface materials, usually asphalt. The subsoil, as an integral part of the road structure, is often considered as a linear-elastic material in these analyses. In reality, however, the behaviour of the soil is highly inelastic and non-linear. Particularly under cyclic loading, plastic deformations can accumulate in the soil, which can potentially contribute to damage to the road structure.
