Fracture void structure: implications for flow, transport and deformation |
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| Authors: | A Aydin |
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| Institution: | (1) Department of Earth Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China e-mail: aaydin@hkucc.hku.hk Tel.: +852-2964-5799 Fax: +852-2517-6912, CN |
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| Abstract: | This review focuses on studies of flow, transport and deformation processes at a scale of a single discontinuity. The paper
provides an evaluation of: (1) various methods suggested for geometrical characterization of void structure; and (2) theoretical
and practical problems arising from significant differences between the actual geometry of fracture void structure and its
parallel plate representation. The use of an equivalent aperture concept is shown to be seriously misleading in: (a) evaluation
of flow regime, and hence selection of appropriate flow laws; (b) correlating tracer and hydraulic tests, and assessment of
solute transport properties; and (c) relating hydraulic and mechanical apertures, and predicting influence of stress perturbation
and deformability.
Received: 2 August 1999 · Accepted: 30 November 1999 |
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| Keywords: | Fracture Flow Transport Deformation |
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