Consolidation analysis for partly saturated clay by using an elastic–plastic effective stress–strain model
Identifieur interne : 002F42 ( Istex/Corpus ); précédent : 002F41; suivant : 002F43Consolidation analysis for partly saturated clay by using an elastic–plastic effective stress–strain model
Auteurs : C. S. Chang ; J. M. DuncanSource :
- International Journal for Numerical and Analytical Methods in Geomechanics [ 0363-9061 ] ; 1983-01.
Abstract
The theory of consolidation is extended to partly saturated clay soils, and formulated for finite element analyses. This formulation couples the effects of both stress and flow. It takes account of variations of this permeability of the soil and compressibility of the pore fluid with changes in void ratio, and the non‐linear stress–strain behaviour of soil. The Cam Clay model is revised to model the stress–strain behaviour of compacted soils. The compressibility of pore fluid is derived using Boyle's Law and Henry's Law, taking into account the effect of surface tension. An empirical equation is developed for permeability of pore fluid. An example of settlement of a footing on partly saturated soil is described and discussed.
Url:
DOI: 10.1002/nag.1610070106
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S.</givenNames><familyName>Chang</familyName></personName></creator><creator xml:id="au2" creatorRole="author" affiliationRef="#af2"><personName><givenNames>J. M.</givenNames><familyName>Duncan</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="af1" countryCode="US" type="organization"><unparsedAffiliation>Department of Civil Engineering, University of Massachusetts, Boston, Massachusetts, U.S.A.</unparsedAffiliation></affiliation><affiliation xml:id="af2" countryCode="US" type="organization"><unparsedAffiliation>Department of Civil Engineering, University of California, Berkeley, California, U.S.A.</unparsedAffiliation></affiliation></affiliationGroup><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title><p>The theory of consolidation is extended to partly saturated clay soils, and formulated for finite element analyses. This formulation couples the effects of both stress and flow. 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This formulation couples the effects of both stress and flow. It takes account of variations of this permeability of the soil and compressibility of the pore fluid with changes in void ratio, and the non‐linear stress–strain behaviour of soil. The Cam Clay model is revised to model the stress–strain behaviour of compacted soils. The compressibility of pore fluid is derived using Boyle's Law and Henry's Law, taking into account the effect of surface tension. An empirical equation is developed for permeability of pore fluid. An example of settlement of a footing on partly saturated soil is described and discussed.</abstract><relatedItem type="host"><titleInfo><title>International Journal for Numerical and Analytical Methods in Geomechanics</title></titleInfo><titleInfo type="abbreviated"><title>Int. J. Numer. Anal. Meth. 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