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

Sebastiano Foti | Zendy; Carlo G. Lai | Zendy; R. Lancellotta | Zendy

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

Author(s) -

Sebastiano Foti,

Carlo G. Lai,

R. Lancellotta

Publication year - 2002

Publication title -

géotechnique

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.775

H-Index - 135

eISSN - 1751-7656

pISSN - 0016-8505

DOI - 10.1680/geot.2002.52.5.359

Subject(s) - porosity , poromechanics , porous medium , geotechnical engineering , geology , shear (geology) , pore water pressure , materials science , petrology

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 (un-drained) 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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