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3D soil image characterization applied to hydraulic properties computation

By
J. F. Delerue
J. F. Delerue
UR Geodes, IRD, 32 avenue Henri Varagnat, 93143 Bondy Cedex, France, (e-mail: delerue@bondy.ird.fr)Laboratory of Building Physics, K.U. Leuven, Celestijnenlaan 131, B-3001 Heverlee, Belgium
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E. Perrier
E. Perrier
UR Geodes, IRD, 32 avenue Henri Varagnat, 93143 Bondy Cedex, France, (e-mail: delerue@bondy.ird.fr)
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A. Timmerman
A. Timmerman
Institute for Land and Water Management, K.U. Leuven, Vital Decosterstraat 102, B-3000 Leuven, Belgium
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R. Swennen
R. Swennen
Physico-chemical Geology, K. U. Leuven, Celestijnenlaan 200C, B-3001 Heverlee, Belgium
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Published:
January 01, 2003

Abstract

We propose a novel method to characterize the fluid-filled (usually air or water) space in images of porous media at the pore scale. First, an aperture map is created based on a skeleton process, to describe all local sizes in the pore space. Then the pore space is segmented in pores, defined as elementary objects that compose the pore space. Using this segmented image, a pore network is created, which is a graphic representation of the pore space that includes local sizes and direct information about connectivity at the pore scale. As an application of this method for pore space modelling, the equivalent hydraulic conductivity or permeability for a soil sample is computed.

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Contents

Geological Society, London, Special Publications

Applications of X-ray Computed Tomography in the Geosciences

F. Mees
F. Mees
Ghent University, Belgium
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R. Swennen
R. Swennen
Physico-chemical Geology, K. U. Leuven, Belgium
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M. Van Geet
M. Van Geet
SCK-CEN, Belgium
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P. Jacobs
P. Jacobs
Ghent University, Belgium
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Geological Society of London
Volume
215
ISBN electronic:
9781862394636
Publication date:
January 01, 2003

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