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Seismic Response of Liquefiable Sloping Ground: Validation of Class B Predictions against the LEAP Centrifuge Tests
Numerical predictions of the liquefaction experiments and analysis project (LEAP) centrifuge tests were revisited in order to evaluate the consistency of the numerical approach and the degree of agreement between numerical predictions and recordings for each facility. The calibration of the numerical model is examined against three Ottawa Sand laboratory data sets, and the validity of the original calibration is confirmed. The recordings of the centrifuge experiments for each facility are compared to the corresponding numerical model analysis and results are presented in terms of excess pore pressure time histories and spectral accelerations. The comparison shows that the numerical model, within the range of uncertainties involved, can satisfactorily predict the results of the experiment for most facilities, but experimental challenges of the experiments for few facilities result to an inconsistent agreement. Additional research is required to identify the underlying causes for the discrepancies but the project is deemed an overall success in yielding high-quality testing results, providing insights for future tests, and demonstrating the predictive capabilities of the numerical approach followed.
Seismic Response of Liquefiable Sloping Ground: Validation of Class B Predictions against the LEAP Centrifuge Tests
Numerical predictions of the liquefaction experiments and analysis project (LEAP) centrifuge tests were revisited in order to evaluate the consistency of the numerical approach and the degree of agreement between numerical predictions and recordings for each facility. The calibration of the numerical model is examined against three Ottawa Sand laboratory data sets, and the validity of the original calibration is confirmed. The recordings of the centrifuge experiments for each facility are compared to the corresponding numerical model analysis and results are presented in terms of excess pore pressure time histories and spectral accelerations. The comparison shows that the numerical model, within the range of uncertainties involved, can satisfactorily predict the results of the experiment for most facilities, but experimental challenges of the experiments for few facilities result to an inconsistent agreement. Additional research is required to identify the underlying causes for the discrepancies but the project is deemed an overall success in yielding high-quality testing results, providing insights for future tests, and demonstrating the predictive capabilities of the numerical approach followed.
Seismic Response of Liquefiable Sloping Ground: Validation of Class B Predictions against the LEAP Centrifuge Tests
Ekstrom, Levi T. (author) / Ziotopoulou, Katerina (author)
Geotechnical Frontiers 2017 ; 2017 ; Orlando, Florida
Geotechnical Frontiers 2017 ; 342-351
2017-03-30
Conference paper
Electronic Resource
English
| British Library Conference Proceedings | 2017
| Springer Verlag | 2019
LEAP-ASIA-2019 Centrifuge Test Simulations of Liquefiable Sloping Ground
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| British Library Online Contents | 2018