Numerical simulation of triaxial stress probes and recent stress-history effects of compressible Chicago glacial clays

Luis G. Arboleda-Monsalve; Fuchen Teng; Taesik Kim; Richard J. Finno

doi:10.1061/(ASCE)GT.1943-5606.0001684

Numerical simulation of triaxial stress probes and recent stress-history effects of compressible Chicago glacial clays

Luis G. Arboleda-Monsalve^*, Fuchen Teng, Taesik Kim, Richard J. Finno

^*Corresponding author for this work

Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Numerical simulations and calibration of hypoplasticity constitutive parameters for Chicago clays are presented based on laboratory tests conducted on high-quality block samples and field tests from excavations located in the Chicago, Illinois area. The parameters for the hypoplasticity model enhanced with the intergranular strain concept are calibrated from the results of index tests, oedometer tests, and K0-consolidated undrained triaxial compression and extension tests. Drained stress probes conducted in a triaxial cell after three different preshearing stress paths were used to compare the numerical results with the triaxial test results. One path was applied to study the clay stress-strain behavior at in situ conditions and the remaining two to isolate the effects of recent stress history. The results are shown in terms of the secant shear and bulk stiffness, shear and volumetric stress-strain responses at small and large strains, and stress path reversals.

Original language	English (US)
Article number	04017029
Journal	Journal of Geotechnical and Geoenvironmental Engineering
Volume	143
Issue number	7
DOIs	https://doi.org/10.1061/(ASCE)GT.1943-5606.0001684
State	Published - Jul 1 2017

Funding

Financial support for this work was provided by the National Science Foundation Grant No. CMMI-1538506. The support of Dr. Richard Fragaszy, program director at NSF, is greatly appreciated. The authors would like to acknowledge Mr. Andres F. Uribe-Henao for his help in checking the numerical models and calibration of the constitutive parameters. Financial support for Dr. Fuchen Teng was provided by the National Science Council (Grant No. 105-2218-E-011-016) in Taiwan. Financial support for Dr. Taesik Kim was provided by the Basic Research Laboratory Program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (Project No. NRF 2015-041523).

Keywords

Block samples
Excavations
Hypoplasticity
Recent stress history
Soft clays

ASJC Scopus subject areas

General Environmental Science
Geotechnical Engineering and Engineering Geology

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10.1061/(ASCE)GT.1943-5606.0001684

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title = "Numerical simulation of triaxial stress probes and recent stress-history effects of compressible Chicago glacial clays",

abstract = "Numerical simulations and calibration of hypoplasticity constitutive parameters for Chicago clays are presented based on laboratory tests conducted on high-quality block samples and field tests from excavations located in the Chicago, Illinois area. The parameters for the hypoplasticity model enhanced with the intergranular strain concept are calibrated from the results of index tests, oedometer tests, and K0-consolidated undrained triaxial compression and extension tests. Drained stress probes conducted in a triaxial cell after three different preshearing stress paths were used to compare the numerical results with the triaxial test results. One path was applied to study the clay stress-strain behavior at in situ conditions and the remaining two to isolate the effects of recent stress history. The results are shown in terms of the secant shear and bulk stiffness, shear and volumetric stress-strain responses at small and large strains, and stress path reversals.",

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AU - Arboleda-Monsalve, Luis G.

AU - Teng, Fuchen

AU - Kim, Taesik

AU - Finno, Richard J.

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Numerical simulations and calibration of hypoplasticity constitutive parameters for Chicago clays are presented based on laboratory tests conducted on high-quality block samples and field tests from excavations located in the Chicago, Illinois area. The parameters for the hypoplasticity model enhanced with the intergranular strain concept are calibrated from the results of index tests, oedometer tests, and K0-consolidated undrained triaxial compression and extension tests. Drained stress probes conducted in a triaxial cell after three different preshearing stress paths were used to compare the numerical results with the triaxial test results. One path was applied to study the clay stress-strain behavior at in situ conditions and the remaining two to isolate the effects of recent stress history. The results are shown in terms of the secant shear and bulk stiffness, shear and volumetric stress-strain responses at small and large strains, and stress path reversals.

AB - Numerical simulations and calibration of hypoplasticity constitutive parameters for Chicago clays are presented based on laboratory tests conducted on high-quality block samples and field tests from excavations located in the Chicago, Illinois area. The parameters for the hypoplasticity model enhanced with the intergranular strain concept are calibrated from the results of index tests, oedometer tests, and K0-consolidated undrained triaxial compression and extension tests. Drained stress probes conducted in a triaxial cell after three different preshearing stress paths were used to compare the numerical results with the triaxial test results. One path was applied to study the clay stress-strain behavior at in situ conditions and the remaining two to isolate the effects of recent stress history. The results are shown in terms of the secant shear and bulk stiffness, shear and volumetric stress-strain responses at small and large strains, and stress path reversals.

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KW - Recent stress history

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Numerical simulation of triaxial stress probes and recent stress-history effects of compressible Chicago glacial clays

Abstract

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Keywords

ASJC Scopus subject areas

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