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Modeling of a geocell-reinforced pavement : an experimental validation
Samo Peter Medved, Bojan Žlender, Stanislav Lenart, Primož Jelušič, 2016, original scientific article

Abstract: This article details how the serviceability of a flexural pavement structure is improved by incorporating the Cellular Confinement System (geocells). For this purpose, two different pavement structures, with and without embedded geocells, were manufactured in a laboratory and an accelerated traffic type of loading was applied. The vertical and horizontal cyclic loads were applied simultaneously to simulate the effect of principal stress rotation. A comparative study between the conventional flexible pavement and the geocell-reinforced flexible pavement is presented. Additionally, numerical models of the laboratory tests were built and the results were compared. The simulation of the experimental tests using the Traffic Load Simulator (TLS) are carried out using the FEM and advanced models that describe the permanent strain behavior of the unbound granular material. The development of permanent deformation within the pavement structure, with and without the geocells, is also presented through the numerical model, which was verified by the experimental results.
Keywords: flexible pavement, reinforcement, geocell, traffic load simulator, permanent deformation, numerical modeling
Published in DKUM: 18.06.2018; Views: 1175; Downloads: 97
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