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Numerical model comparison on deformation behavior of a TSF embankment subjected to earthquake loading
This paper introduces two independent numerical modeling approaches used to investigate the earthquake response of a tailings embankment dam on a foundation consisting of liquefiable alluvial soil. The approaches employ non-linear two-dimensional finite-difference and finite-element numerical schemes along with fully-coupled effective stress constitutive models for liquefaction. Details of the parameters describing each liquefaction constitutive model and results of model calibration against experimental data from liquefaction cyclic triaxial tests are presented. Comparison of numerical results addressing the seismic performance of the analyzed embankment-liquefiable foundation system indicates agreement between the two independent modeling approaches in terms of predicted deformation pattern of the system and magnitude of permanent dam displacement. The study demonstrates that both considered numerical modeling approaches represent a useful and robust tool for analyzing the deformation behavior of tailings dams on liquefiable foundation under seismic conditions. ; Applied Science, Faculty of ; Mining Engineering, Keevil Institute of ; Unreviewed ; Other
Numerical model comparison on deformation behavior of a TSF embankment subjected to earthquake loading
This paper introduces two independent numerical modeling approaches used to investigate the earthquake response of a tailings embankment dam on a foundation consisting of liquefiable alluvial soil. The approaches employ non-linear two-dimensional finite-difference and finite-element numerical schemes along with fully-coupled effective stress constitutive models for liquefaction. Details of the parameters describing each liquefaction constitutive model and results of model calibration against experimental data from liquefaction cyclic triaxial tests are presented. Comparison of numerical results addressing the seismic performance of the analyzed embankment-liquefiable foundation system indicates agreement between the two independent modeling approaches in terms of predicted deformation pattern of the system and magnitude of permanent dam displacement. The study demonstrates that both considered numerical modeling approaches represent a useful and robust tool for analyzing the deformation behavior of tailings dams on liquefiable foundation under seismic conditions. ; Applied Science, Faculty of ; Mining Engineering, Keevil Institute of ; Unreviewed ; Other
Numerical model comparison on deformation behavior of a TSF embankment subjected to earthquake loading
2015-10-01
Conference paper
Electronic Resource
English
DDC:
690
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