Abstract

In this contribution an overview of the continuum mechanical modeling of linear elastic partially saturated porous media and the application of such a model to linear wave propagation is given. First the involved microstructural variables are discussed and the construction of the model is presented. The macroscopic parameters used in the model are obtained by micro-macro-transition procedure from the measurable microscopic quantities. The linear elastic wave propagation analysis is demonstrated exemplarily for sandstone, sand and clayey loam. The properties of the four appearing waves – three compressional and one shear wave – are compared. Phase speeds and attenuations of these waves depend both on the frequency and on the degree of saturation.

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