Effects of Soil Parameters Uncertainties on the Behaviour of Anisotropic Porous Media to Shear Waves

Effects of Soil Parameters Uncertainties on the Behaviour of Anisotropic Porous Media to Shear Waves

Amina Sadouki, Zamila Harichane, Ayfer Erken
Copyright: © 2019 |Pages: 18
DOI: 10.4018/IJGEE.2019070103
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Abstract

In the present study, the wave equations for shear waves propagating in anisotropic fluid-saturated porous media are established in order to obtain the solutions in terms of displacements and dispersion equation. The wave velocities in the vertical and horizontal directions are derived. The uncertainties of the soil parameters due to their spatial variability are taken into account via Monte Carlo Simulations. The results are restricted to the effects of the porosity and permeability uncertainties on the phase velocity and attenuation for SH wave in addition to the anisotropy for Love wave. Results show that the mean velocities are more sensitive to the random variations of the permeability than to that of the porosity, but both phase velocity and attenuation decrease as the uncertainties increase. On the other hand, the anisotropy level and the randomness significantly affect the dispersion of Love waves. The present approach which converts a deterministic solution in a probabilistic one may be used as an everyday tool for practical applications of shear wave propagation in random media.

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