Abstract
The effects of earthquakes on pile-supported wharves include damage to piles by inertial forces acting on the superstructure, and damage caused by horizontal displacement of retaining walls. Piles can also be damaged through kinematic forces generated by slope failure. Such forces are significant but it is difficult to clearly explain pile damage during slope failure since the inertial force of superstructure and the kinematic force by slope failure can occur simultaneously during an earthquake. In this study, dynamic centrifuge model tests were performed to evaluate the effect of the kinematic force of the ground due to slope failure during earthquake on the behavior of a pile-supported wharf structure. Experimental results indicate that the slope failure in the inclined-ground model caused the deck plate acceleration and pile moment to be up to 24% and 31% respectively greater than those in the horizontal-ground model due to the kinematic force of the ground.
Highlights
Pile-supported structures are important in port infrastructure
Dynamic centrifuge model tests of pilesupported structure constructed on horizontal and inclined ground were performed to investigate the effects of kinematic force during slope failure on the behavior of the structure
In this study, dynamic centrifuge model tests of pile-supported structure installed on horizontal and inclined ground were performed to investigate the effects of kinematic force during slope failure on the behavior of the structure
Summary
Pile-supported structures are important in port infrastructure. They essentially comprise piles supporting a deck and the embankment, and can be classified as wharves, piers, or jetties depending on the type of structure. Deck-plate acceleration and displacement, and ground pore-water pressure were measured throughout the experiments and compared with analytical results.
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