Location
Chicago, Illinois
Date
04 May 2013, 8:45 am - 9:15 am
Abstract
The paper focuses on loose clean and silty sand fills that liquefied during the 1989 Loma Prieta, California earthquake. Available field case histories of liquefaction that include measured shear wave velocity from the Andrus et al. (2003) database are used. The liquefaction behavior observed in these field case histories is compared with the results of two large scale and six centrifuge shaking tests conducted by the authors. System identification and site response analyses are used to obtain the corresponding cyclic shear stress ratios in the tests. Due consideration is given to the shaking duration and 1D versus 2D shaking in the laboratory and field. The comparison between field and shaking tests is very good, with both case histories and shaking tests validating well the Andrus and Stokoe (2000) liquefaction chart for Mw = 7.0. This agreement also serves to validate the large scale and centrifuge testing techniques presented, as tools that can be used toward improved methods for liquefaction evaluation and mitigation of sandy fills.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
7th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2013 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; Abdoun, Tarek; Thevanayagam, Sabanayagam; El-Ganainy, Hesham; and Mercado, Vicente, "Case Histories of Liquefaction in Loose Sand Fills During the 1989 Loma Prieta Earthquake: Comparison With Large Scale and Centrifuge Shaking Tests" (2013). International Conference on Case Histories in Geotechnical Engineering. 4.
https://scholarsmine.mst.edu/icchge/7icchge/session12/4
Case Histories of Liquefaction in Loose Sand Fills During the 1989 Loma Prieta Earthquake: Comparison With Large Scale and Centrifuge Shaking Tests
Chicago, Illinois
The paper focuses on loose clean and silty sand fills that liquefied during the 1989 Loma Prieta, California earthquake. Available field case histories of liquefaction that include measured shear wave velocity from the Andrus et al. (2003) database are used. The liquefaction behavior observed in these field case histories is compared with the results of two large scale and six centrifuge shaking tests conducted by the authors. System identification and site response analyses are used to obtain the corresponding cyclic shear stress ratios in the tests. Due consideration is given to the shaking duration and 1D versus 2D shaking in the laboratory and field. The comparison between field and shaking tests is very good, with both case histories and shaking tests validating well the Andrus and Stokoe (2000) liquefaction chart for Mw = 7.0. This agreement also serves to validate the large scale and centrifuge testing techniques presented, as tools that can be used toward improved methods for liquefaction evaluation and mitigation of sandy fills.
