Research Article
Jul 1971
Stress Analysis of Contractive or Dilative Soil
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VIEW THE REPLYAuthors: Ian M. Smith, AM.ASCE, and Stephen KayAuthor Affiliations
Publication: Journal of the Soil Mechanics and Foundations Division
Volume 97, Issue 7
Abstract
Nonlinear plastic stress-strain characteristics of drained soil, as described by Rowe's stress-dilatancy and by the Cambridge soil models, have been utilized in the solution of simple boundary value problems. Only plane strain conditions have been considered, and basic soil parameters reflecting frictional characteristics and stiffness appropriate to the plane strain state have been employed. The method of computation used has been the finite element (displacement) method. Nonlinearity has been incorporated using initial strain rather than tangent modulus techniques. Analysis of one problem involving contractive soil shows that for one type of stress path, the Cam clay model agrees better with experiment than does the modified Cam clay model. In the case of a similar problem involving dilative soil, the stress-dilatancy theory models the soil behavior well in a case where elasticity solutions predict failure at two-thirds of the true failure load.
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Published In
Journal of the Soil Mechanics and Foundations Division
Volume 97 • Issue 7 • July 1971
Pages: 981 - 997
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Jul 1971
Published online: Feb 12, 2021
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Ian M. Smith, AM.ASCE
Lectuer., Simon Engrg. Labs., Univ. of Manchester, Manchester, England, U.K.
Stephen Kay
Asst.; Rofe, Kennard and Lapworth, Consulting Engrs., London, England, U.K.
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