In this paper, the FEM (three-dimensional model) was used for the static analysis of a flexible road pavement structure in the form of a system of elastic layers with finite width and an infinite elastic subgrade, loaded uniformly on a circular surface reflecting the interaction of a wheel (in two positions relative to the edge of the carriageway) of a heavy goods vehicle with a standard permissible axle load. With regard to the rectangular area modeled by finite elements, cut out from the road pavement, boundary conditions were assumed that reflect the finite width of the pavement and the interaction (in the form of reactions) of the remaining sections of the road and the underlying soil subgrade.The basic mechanical model of a flexible road pavement structure, recommended for individual design of this type of structure in [1] (Annex 5, p. 3 to the Regulation of the Minister of Transport and Maritime Economy on technical conditions to be met by public roads and their location), is a model based on the theory of a multi-layer elastic or viscoelastic half-space [2], [3]. This is confirmed by computational and design practice – especially when dimensioning the structure. Such a model can be analyzed (…)
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Source: Logistyka Magazine
Static analysis of road pavement structure using FEM and Abaqus software – PDF file for download