Influence de l'hétérogénéité géologique et mécanique sur la réponse des sols multicouches

M'Hammed Badaoui 1
1 Equipe de Mécanique
MSME - Laboratoire de Modélisation et Simulation Multi Echelle
Abstract : In this thesis we are interested to establish a probabilistic formulation for the behavior analysis of a multilayered soil with random characteristics. Two main axes are treated: ?primary consolidation and ?seismic response of multilayered soils with uncertain characteristics. We use Monte Carlo simulations associated with semi-analytical methods adapted for the multilayered soils with horizontal stratification. We have also compared the results obtained from this formulation with those provided by the following seismic codes: RPA 99 (version 2003), UBC 97 and EC8. This study showed that the maximum values of the shear forces at the base of the buildings vary substantially according to the variation of the soil profile height as well as its heterogeneity which can reach a relative ratio of about 3 in the extreme cases. This ratio can also be lower than 1 leading to less economic structures
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Mathematics. Université Paris-Est; Ecole nationale polytechnique (Alger), 2008. French. <NNT : 2008PEST0212>


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M'Hammed Badaoui. Influence de l'hétérogénéité géologique et mécanique sur la réponse des sols multicouches. Mathematics. Université Paris-Est; Ecole nationale polytechnique (Alger), 2008. French. <NNT : 2008PEST0212>. <tel-00462182>

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