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International Agrophysics
publisher:Institute of Agrophysics
Polish Academy of Sciences
Lublin, Poland
ISSN: 0236-8722

vol. 13, nr. 2 (1999)

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Crack width, cross-section area, and volume in swelling clay soils
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Chertkov V.Y., Ravina I.
Faculty of Agricultural Engineering, Technion, Haifa 32000, Israel

vol. 13 (1999), nr. 2, pp. 157-166
abstract A model is presented for prediction of crack network geometry in clay soils. The starting point is the similarity between a crack network in rocks and that in soils, and, hence, principles of multiple crack formation in rocks can be used. The model estimates the mean crack width, crack cross-section area, and crack volume. Special verification of the model was done with published data on these characteristics in the micro-shrinkage depth range. Agreement between the data and the model predictions for these depths is satisfactory.
keywords geometry, swelling soils, shrinkage, cracks