Research Article
Apr 1972
Duplication of Dilatancy in Analysis of Jointed Rocks
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VIEW THE REPLYAuthors: Richard E. Goodman, M.ASCE, and Jacques DuboisAuthor Affiliations
Publication: Journal of the Soil Mechanics and Foundations Division
Volume 98, Issue 4
Abstract
The examples in this paper demonstrate that dilatancy parameters affect the results of stress and limit equilibrium analyses of jointed rock masses. A sophisticated analogue intended for computer modeling was presented and a working program based on finite element analysis has proved to give reasonable results. The analogue can also be introduced in closed form analytical formulations. Though originated to describe movements of blocks across single joints, the same approach can be used to describe movement of blocks across stepped sliding surfaces compiled from two intersecting joint sets. In this case, the compound sliding surface is replaced by a single equivalent surface whose stiffness coefficients reflect the angular relations of the mean plane and the joint sets. As new data on joint dilatancy become available, they should be incorporated in rock mechanics practice.
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Published In
Journal of the Soil Mechanics and Foundations Division
Volume 98 • Issue 4 • April 1972
Pages: 399 - 422
Copyright
© 1972 American Society of Civil Engineers.
History
Published in print: Apr 1972
Published online: Feb 12, 2021
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Richard E. Goodman, M.ASCE
Assoc. Prof., Dept. of Civ. Engrg., Univ. of California, Berkeley, Calif.
Jacques Dubois
Res. Asst., Dept. of Civ. Engrg., Univ. of California, Berkeley, Calif.
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