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Article Dans Une Revue Journal of Sound and Vibration Année : 2006

A numerical model for ground-borne vibrations from underground railway traffic based on a periodic finite element-boundary element formulation

Résumé

A numerical model is presented to predict vibrations in the free field from excitation due to metro trains in tunnels. The three-dimensional dynamic tunnel–soil interaction problem is solved with a subdomain formulation, using a finite element formulation for the tunnel and a boundary element method for the soil. The periodicity of the geometry in the longitudinal direction of the tunnel is exploited using the Floquet transform, limiting the discretization to a single-bounded reference cell. The responses of two different types of tunnel due to a harmonic load on the tunnel invert are compared, both in the frequency–wavenumber and spatial domains. The first tunnel is a shallow cut-and-cover masonry tunnel on the Paris metro network, embedded in layers of sand, while the second tunnel is a deep bored tunnel of London Underground, with a cast iron lining and embedded in the London clay.
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hal-01004923 , version 1 (10-06-2017)

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Geert Degrande, Didier Clouteau, Ramzi Othman, Marteen Arnst, Hamdi Chebli, et al.. A numerical model for ground-borne vibrations from underground railway traffic based on a periodic finite element-boundary element formulation. Journal of Sound and Vibration, 2006, 293 (3-5), pp.645-666. ⟨10.1016/j.jsv.2005.12.023⟩. ⟨hal-01004923⟩
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