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Mar 30, 2017
Numerical Modeling of Columnar-Reinforced Ground Behavior during Dynamic Centrifuge Testing
Authors: Soheil Kamalzare [email protected] and C. Guney Olgun, Ph.D. [email protected]Author Affiliations
Publication: Geotechnical Frontiers 2017
Abstract
Predicting the response of soil profiles during earthquakes is one of the major challenges in geotechnical earthquake engineering. The presence of reinforcing elements such as stiff columns adds further complexity to the problem due to the interaction of these stiff elements with the surrounding ground. This research presents the results of advanced numerical simulations of dynamic centrifuge tests performed on a columnar reinforced model with a loose sandy profile. The model was subjected to earthquake base motions of varying intensities to investigate the reinforcing mechanisms of soil-cement columns. Numerical simulations were performed using the finite element computational platform OpenSees with pressure dependent multi yield (PDMY02) constitutive model. Simulated and measured values were compared for seismic intensity, excess pore water pressure and ground settlement at different locations within soil profile. The calibrated numerical model was able to realistically predict the response of reinforced ground.
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© 2017 American Society of Civil Engineers.
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Published online: Mar 30, 2017
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Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Virginia Tech, 111 Patton Hall, Blacksburg, VA 24061. E-mail: [email protected]
Research Assistant Professor, Dept. of Civil and Environmental Engineering, Virginia Tech, 111A Patton Hall, Blacksburg, VA 24061. E-mail: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.