Finite element modeling of soil-pile response subjected to liquefaction-induced lateral spreading in a large-scale shake table experiment. Issue 92 (January 2017)

• Record Type: Journal Article
• Authors: Li, Gangjin; Motamed, Ramin
• Is Part Of: Soil dynamics and earthquake engineering. Issue 92(2017)
• Page Start: 573
• Page End: 584
• Publication Date: 2017-01
• Subjects: Lateral spreading -- 2D effective stress analysis -- OpenSees -- Soil-pile response -- Mitigation measure; Soil dynamics -- Periodicals; Earthquake engineering -- Periodicals; Sols -- Dynamique -- Périodiques; Génie parasismique -- Périodiques; 624.176205
• DOI: 10.1016/j.soildyn.2016.11.001
• Languages: English
• ISSNs: 0267-7261

Abstract

Abstract: This paper presents two-dimensional (2D) nonlinear dynamic finite element (FE) modeling of a large-scale shake table test conducted at the E-Defense shake table facility in Japan. This study explores the efficiency of 2D effective stress analyses to predict the behavior of soil-pile systems subjected to liquefaction and lateral spreading using the library of existing constitutive models and the prescribed parameters. The coupled soil-water FE model was developed in OpenSees and the analysis results are compared with measured data from the shake table experiment with the main emphasis on the response of liquefied soil and the demand applied to the piles as well as the sheet-pile quay wall. By examining the numerical analysis results, it is demonstrated that the FE model was able to reproduce the shake table model behavior with reasonable accuracy. Lastly, a mitigation strategy was modeled to investigate its effectiveness to reduce the demand on the soil-pile system. Highlights: Numerical modeling of one of the E-Defense large-scale shake table experiments on lateral spreading. OpenSees was utilized to model soil-pile response to liquefaction-induced lateral spreading. Overall, reasonable numerical predictions were achieved compared to experimental data. A mitigation measure was evaluated to reduce demands on soil-pile system.