Novel Analytical Approach for Vertical Dynamic Response of Floating Pile Groups Based on a Fictitious Soil Pile Model
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING（2024）
Shandong Univ Sci & Technol
Abstract
A novel analytical model for the vertical dynamic response of floating pile groups is established based on a fictitious group soil pile model (FGSP). Analytical solutions of the pile-to-pile interaction factor and dynamic impedance for the FGSP are obtained by combining the superposition and matrix transform methods. The obtained solutions are then validated by comparison with model test results and published analytical solutions. A numerical analysis is further performed to examine the effects of pile and soil parameters on the dynamic response of the FGSP. Results indicate that the effects of pile end soil on the pile-to-pile interaction factor and dynamic impedance of the FGSP are significant. Consequently, the established novel analytical model has better applicability to the dynamic problems of floating pile groups due to its consideration of the effects of pile end soil.
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Key words
Floating pile groups,Fictitious soil pile,Analytical solutions,Dynamic interaction factor,Dynamic impedance
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