Pile response during liquefaction-induced lateral spreading: 1-g shake table tests with different ground inclination

Ebeido, Ahmed; Elgamal, Ahmed; Zayed, Muhammad

doi:10.1201/9780429438646-90

Cited by 6 publications

(2 citation statements)

References 1 publication

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“…A number of papers investigate the performance of piles under seismic loading. The experiments consider single piles (Yao et al 2018, Ebeido et al 2018, Chen et al 2018, Pérez-Herreros et al 2018 or small pile groups (Imamura 2018, Egawa et al 2018. One paper (Garala & Madabhushi 2018) considered a comparison between a single pile and a small pile group (containing three piles).…”

Section: Piles Under Seismic Actionmentioning

confidence: 99%

Physical modelling applied to infrastructure development

Goodey¹

2018

Physical Modelling in Geotechnics

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Section: Piles Under Seismic Actionmentioning

confidence: 99%

Physical modelling applied to infrastructure development

Goodey¹

2018

Physical Modelling in Geotechnics

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“…However, Gerolymos et al (2008) and Capatti et al (2020) found both the beneficial and detrimental effects of inclined piles subjected to liquefaction-induced lateral displacement but these are not detailed or mechanistically justified. In addition to the physical model tests on SPSQ systems, a number of experimental model tests have also been performed on the influence of liquefaction-induced lateral displacement on the soil-pile system in the past two decades (Abdoun et al, 2002;Boulanger et al, 2003;Brandenberg et al, 2005;Madabhushi, 2008, 2012;Haeri et al, 2012;Ebeido et al, 2018Ebeido et al, , 2019Ueda et al, 2019;Zhang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Response of soil–pile–superstructure–quay wall system to lateral displacement under horizontal and vertical earthquake excitations

Chen

Cai

et al. 2022

Bull Earthquake Eng

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The excess pore water pressure (EPWP) generated under the combined vertical and horizontal earthquake excitations is generally greater than that under the unidirectional excitation, which may further affect the dynamic response of soil-pile-superstructure-quay wall (SPSQ) system. This study conducted a coupled effective-stress analysis for the response of SPSQ system to liquefaction-induced lateral displacement under horizontal and vertical earthquake excitations. To accurately describe the lateral displacement behind the quay wall, the liquefaction behavior of soils was described by a modified generalized plasticity model with parameters properly determined from laboratory tests. The numerical model of the SPSQ system was validated against the previously reported centrifuge model tests. The results show that the earthquake excitation with abundant low-frequency component causes greater residual lateral displacements of footing (ux,RF) and quay wall (ux,RQ ) than that with abundant high-frequency component. The ux,RF and ux,RQ tend to increase as the peak vertical acceleration increases for both vertical and inclined piles. Increasing the fixity of the quay wall significantly reduces the influence of vertical ground motion on the ux,RF and ux,RQ. The polarity reversal of the vertical ground motion also has a significant effect on the ux,RF and ux,RQ and should be considered in the analyses. In addition, the lateral displacement of liquefied ground causes an amount of rotation of the cap of the inclined pile, probably leading to the potential shear failure at the head of piles.

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