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Article
Numerical Modeling of Columnar-Reinforced Ground Behavior During Dynamic Centrifuge Testing
Geotechnical Special Publication
  • Soheil Kamalzare
  • C. Guney Olgun, Missouri University of Science and Technology
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.

Meeting Name
Geotechnical Frontiers 2017 (2017: Mar. 12-15, Orlando, FL)
Department(s)
Geosciences and Geological and Petroleum Engineering
Keywords and Phrases
  • Centrifuges,
  • Earthquake Engineering,
  • Earthquakes,
  • Finite Element Method,
  • Geophysics,
  • Reinforcement,
  • Soil Cement,
  • Soils, Centrifuge Testing,
  • Computational Platforms,
  • Excess Pore Water Pressure,
  • Pressure Dependent,
  • Reinforcing Elements,
  • Reinforcing Mechanism,
  • Seismic Intensity,
  • Soil-Cement Column, Numerical Models
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2017 American Society of Civil Engineers (ASCE), All rights reserved.
Publication Date
3-1-2017
Citation Information
Soheil Kamalzare and C. Guney Olgun. "Numerical Modeling of Columnar-Reinforced Ground Behavior During Dynamic Centrifuge Testing" Geotechnical Special Publication Vol. GSP 277 (2017) p. 39 - 48 ISSN: 0895-0563
Available at: http://works.bepress.com/c-olgun/39/