Abstract:An evaluation is needed as to whether the constant thickness for the formation layer of 0.4 m and the bottom layer of 2.3 m in China’s current subgrade design is appropriate for the asphalt trackbed given its viscoelastic properties. This paper presents numerical research on the compatible design of roadbed thickness for asphalt concrete-based track (AC-based track) with SBS-25, using finite element modeling (FEM). Accordingly, a compatible design method for the substructure of an AC-based track was proposed f… Show more
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