Location
San Diego, California
Presentation Date
27 May 2010, 3:15 pm - 4:00 pm
Abstract
Integrated research is described on the response of pile foundations subjected to lateral ground deformations associated with sand liquefaction. Field evidence, experiments and analysis have indicated that pile bending and other response aspects depend on a complex manner on – and are very sensitive to - several parameters including the specific foundation and structural system, the free field ground deformation, and soil aspects such as layering and properties of nonliquefied and liquefied soil strata. The research presented focuses on sites where the liquefiable soil reaches the ground surface (especially important to bridge foundations), showing that in this case the permeability and stiffness of the soil play a major role on pile response to ground deformation. Full-scale and centrifuge experiments with advanced instrumentation as well as Finite Element and Discrete Element numerical simulations, are described and integrated to show the main phenomena affecting soil and pile response. Possible implications are discussed for the analysis, design and retrofitting of deep foundations against lateral spreading.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2010 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Dobry, Ricardo and Abdoun, Tarek, "Seismic Response of Deep Foundations Subjected to Liquefaction-Induced Lateral Spreading: Integrated Research and Practical Implications" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 9.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session10/9
Included in
Seismic Response of Deep Foundations Subjected to Liquefaction-Induced Lateral Spreading: Integrated Research and Practical Implications
San Diego, California
Integrated research is described on the response of pile foundations subjected to lateral ground deformations associated with sand liquefaction. Field evidence, experiments and analysis have indicated that pile bending and other response aspects depend on a complex manner on – and are very sensitive to - several parameters including the specific foundation and structural system, the free field ground deformation, and soil aspects such as layering and properties of nonliquefied and liquefied soil strata. The research presented focuses on sites where the liquefiable soil reaches the ground surface (especially important to bridge foundations), showing that in this case the permeability and stiffness of the soil play a major role on pile response to ground deformation. Full-scale and centrifuge experiments with advanced instrumentation as well as Finite Element and Discrete Element numerical simulations, are described and integrated to show the main phenomena affecting soil and pile response. Possible implications are discussed for the analysis, design and retrofitting of deep foundations against lateral spreading.
