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dc.contributor.authorChong, Song-Hun
dc.contributor.authorSantamarina, Carlos
dc.date.accessioned2016-11-03T13:21:55Z
dc.date.available2016-11-03T13:21:55Z
dc.date.issued2016-03-03
dc.identifier.citationChong S-H, Santamarina JC (2016) Soil Compressibility Models for a Wide Stress Range. Journal of Geotechnical and Geoenvironmental Engineering 142: 06016003. Available: http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0001482.
dc.identifier.issn1090-0241
dc.identifier.issn1943-5606
dc.identifier.doi10.1061/(ASCE)GT.1943-5606.0001482
dc.identifier.urihttp://hdl.handle.net/10754/621652
dc.description.abstractSoil compressibility models with physically correct asymptotic void ratios are required to analyze situations that involve a wide stress range. Previously suggested models and other functions are adapted to satisfy asymptotic void ratios at low and high stress levels; all updated models involve four parameters. Compiled consolidation data for remolded and natural clays are used to test the models and to develop correlations between model parameters and index properties. Models can adequately fit soil compression data for a wide range of stresses and soil types; in particular, models that involve the power of the stress σ'β display higher flexibility to capture the brittle response of some natural soils. The use of a single continuous function avoids numerical discontinuities or the need for ad hoc procedures to determine the yield stress. The tangent stiffness-readily computed for all models-should not be mistaken for the small-strain constant-fabric stiffness. © 2016 American Society of Civil Engineers.
dc.description.sponsorshipThis research was conducted by the authors while at the Georgia Institute of Technology. Support for this research was provided by the Department of Energy Savannah River Operations Office and the Goizueta Foundation. Additional support was provided by the Convergence R&D program of MSIP/NST (Convergence Research-14-2-ETRI) and the KAUST endowment.
dc.publisherAmerican Society of Civil Engineers (ASCE)
dc.subjectCompression index
dc.subjectNatural sedimentary clays
dc.subjectRemolded clays
dc.subjectSmall-strain stiffness
dc.subjectSoil compressibility models
dc.subjectTangential stiffness
dc.subjectYield stress
dc.titleSoil Compressibility Models for a Wide Stress Range
dc.typeArticle
dc.contributor.departmentEarth Science and Engineering Program
dc.identifier.journalJournal of Geotechnical and Geoenvironmental Engineering
dc.contributor.institutionHigh Speed Railroad Systems Research Center, Korea Railroad Research Institute, 176, Cheoldo bangmulgwan-ro, Uiwang-si, Gyeonggi-do, South Korea
kaust.personSantamarina, Carlos


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