MECHANISM OF HORIZONTAL SUBGRADE REACTION OF PILE DURING SOIL LIQUEFACTION BASED ON PILE TOP VIBRATION TESTS

Vertical Vibration Analysis of Soil-pile Interaction Systems Considering the Soil-pile Interface Behavior

A numerical method is presented herein to study soil-pile interaction systems in a stratified media. The method is based on a coupling of the finite element method and the boundary element method. The near field is modeled by the finite elements whereas the far field is modeled by the boundary dement formulation using the multi-layer dynamic fimdamental solution that satisfies the radiation con...

A computational model of pile vertical vibration in saturated soil based on the radial disturbed zone of pile driving

In this study, a simplified computational model of pile vertical vibration was developed. The model was based on the inhomogeneous radial disturbed zone of soil in the vicinity of a pile disturbed by pile driving. The model contained two regions: the disturbed zone, which was located in the immediate vicinity of the pile, and the undisturbed region, external to the disturbed zone. In the model,...

Dynamic Pile-soil-pile Interaction. Part I: Analysis of Axial Vibration

Simple methods of analysis are developed for computing the dynamic steady-state axial response of floating pile groups embedded in homogeneous and non-homogeneous soil deposits. Physically-motivated approximations are introduced to account for the interaction between two individual piles. It is found that such an interaction arises chiefly from the ‘interference’ of wave fields originating alon...

Analysis of Centrifuge Pile Tests; Simulation of Pile-driving

Numerical simulation of liquefaction susceptibility of soil interacting by single pile

Previous case histories have shown that soil liquefaction severely damaged many structures supported on pile foundations during earthquakes. As a result, evaluating the potential for instability is an important consideration for the safe and resistant design of deep foundation against earthquakes. In this study, the liquefaction susceptibility of saturated sand interacting by single concrete pi...