Prediction of pile response to lateral spreading by 3-D soil–water coupled dynamic analysis: Shaking in the direction of ground flow

Abstract

Numerical predictions of a series of shake table tests are presented in this paper in order to examine the accuracy of a 3-D effective stress analysis in predicting the behavior of piles subjected to liquefaction-induced ground flow. For a rigorous assessment of the analysis, "Class B" predictions are reported in which numerical and constitutive model parameters were set before the event, and the target motion was used as an input motion in the analysis. Modeling of the stress-strain behavior of sand, identification of the initial stress state and critical numerical parameters in the 3-D seismic analysis of the soil-pile system are discussed in detail. Combined effects of kinematic loads due to large lateral ground movement and inertial loads on pile behavior are examined through a series of tests using different shaking direction, excitation amplitude and mass of the footing (load from the superstructure). By and large, very good agreement was obtained between the predicted and measured peak responses of the pile foundation, whereas the analysis underestimated the displacements of the sheet-pile wall and was less accurate in predicting the residual deformation of the foundation piles. Reasons for these discrepancies and limitations of the analysis method are discussed.

Dynamic behavior of large-diameter piles with considering liquefaction under clay layer

“…In addition to the referred experimental e orts, numerical studies have been carried out by various codes and platforms. Some notable instances of such studies include: Finn et al [11], Tabesh & Poulos [12], Miyazaki et al [13], Finn and Fujita [14], Klar et al [15], Liyanapathirana and Poulos [16,17], Chang et al [18], Bhattacharya et al [19], Elgamal et al [20], Cheng and Jeremic [21], Cubrinovski et al [22], Rahmani and Pak [23], Asgari and Oliaei [24], Sarkar et al [25], Bouckovalas and Chaloulos [26], Asadi and Shari pour [27], and Lin et al [28].…”

Probabilistic seismic performance and loss assessment of a bridge-foundation-soil system

“…The S-D model has been extensively verified through rigorous simulations of down-hole array records at liquefaction sites, seismic centrifuge tests, large-scale shake-table tests on pile foundations and case histories of damaged piles in the 1995 Kobe earthquake (e.g. [13] and references therein). Further details on the computation of the constitutive model parameters used in the analysis is given in Bowen and Cubrinovski [8] and Cubrinovski and Ishihara [10,11].…”

Dynamic Response of Single Pile Located in Soft Clay Underlay by Sand

“…The results indicated that the maximum dynamic bending moment of pile in soft clay was about 1.5 times higher than the maximum static bending moment. Cubrinovski et al [5] studied the pile response to lateral spreading by 3-D soil-water coupled dynamic analysis by shaking in the direction of ground flow. Liyanapathirana and Poulos [9] studied the analysis of pile behavior in liquefying sloping ground.…”