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An FE analysis of reinforced subgrade under automobile loading

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Abstract

An FE analysis procedure was presented to predict the behavior of soil-geogrid interaction under automobile loading. The dynamic interactions between the transverse bars, the longitudinal ribs and the soil were simulated by a system consisting of nonlinear springs, dashpots and masses, to study the deformation properties of the reinforced soil. The equivalent stiffness and damping ratios could be determined with the shaking table. The dynamic responses of a reinforce subgrade were analyzed with the 3D finite element approach. This approach is programmed and applied to analyze the soil-geogrid interaction under dynamic loading. The comparative analysis of the response of the reinforced subgrade and that of the subgrade without reinforcement shows that the geogrid placed at the bottom of the base layer may effectively reduce the accumulative plastic deformation due to the cyclic automobile loading.

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Shuwang, Y., Xinqiang, Z. & Run, L. An FE analysis of reinforced subgrade under automobile loading. Acta Mech Sinica 20, 89–95 (2004). https://doi.org/10.1007/BF02484249

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  • DOI: https://doi.org/10.1007/BF02484249

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