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Porosity of fluid-saturated porous media from measured seismic wave velocities

Porosity of fluid-saturated porous media from measured seismic wave velocities

Geotechnique 52(5): 359-373

This paper presents a novel procedure for determining porosity in fluid-saturated porous media from measured shear and dilatational wave velocities. The method is developed using the theory of linear poroelasticity in the low-frequency limit, which is equivalent to considering the fluid-saturated porous medium as a closed (undrained) system with the pore fluid moving in phase with the soil skeleton. The new procedure for the in-situ measurement of porosity has been applied at two sites in Italy using cross-hole seismic data. The results obtained are in excellent agreement with independent laboratory data gathered from undisturbed soil specimens.

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Accession: 019750078

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DOI: 10.1680/geot.2002.52.5.359

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