Soil Compressibility Models for a Wide Stress Range

Handle URI:
http://hdl.handle.net/10754/621652
Title:
Soil Compressibility Models for a Wide Stress Range
Authors:
Chong, Song-Hun; Santamarina, Carlos ( 0000-0001-8708-2827 )
Abstract:
Soil 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.
KAUST Department:
Earth Science and Engineering Program
Citation:
Chong 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.
Publisher:
American Society of Civil Engineers (ASCE)
Journal:
Journal of Geotechnical and Geoenvironmental Engineering
Issue Date:
3-Mar-2016
DOI:
10.1061/(ASCE)GT.1943-5606.0001482
Type:
Article
ISSN:
1090-0241; 1943-5606
Sponsors:
This 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.
Appears in Collections:
Articles; Earth Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorChong, Song-Hunen
dc.contributor.authorSantamarina, Carlosen
dc.date.accessioned2016-11-03T13:21:55Z-
dc.date.available2016-11-03T13:21:55Z-
dc.date.issued2016-03-03en
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.en
dc.identifier.issn1090-0241en
dc.identifier.issn1943-5606en
dc.identifier.doi10.1061/(ASCE)GT.1943-5606.0001482en
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.en
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.en
dc.publisherAmerican Society of Civil Engineers (ASCE)en
dc.subjectCompression indexen
dc.subjectNatural sedimentary claysen
dc.subjectRemolded claysen
dc.subjectSmall-strain stiffnessen
dc.subjectSoil compressibility modelsen
dc.subjectTangential stiffnessen
dc.subjectYield stressen
dc.titleSoil Compressibility Models for a Wide Stress Rangeen
dc.typeArticleen
dc.contributor.departmentEarth Science and Engineering Programen
dc.identifier.journalJournal of Geotechnical and Geoenvironmental Engineeringen
dc.contributor.institutionHigh Speed Railroad Systems Research Center, Korea Railroad Research Institute, 176, Cheoldo bangmulgwan-ro, Uiwang-si, Gyeonggi-do, South Koreaen
kaust.authorSantamarina, Carlosen
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