Nonlinear Characteristics of Single Piles under Rotating Machine Induced Coupled Vibration Using Both Experimental and Numerical Studies
Publication: Geo-Congress 2023
ABSTRACT
In this study, an experimental investigation is conducted to determine the soil-pile separation lengths and frequency-amplitude responses of a single pile under rotating machine induced coupled, i.e., horizontal and rocking vibrations. Forced vibration tests are performed in the field on the single pile made of a hollow steel pipe of length 5.8 m and an outer diameter of 0.166 m to determine the frequency-amplitude responses for four different eccentric moments. The frequency-amplitude responses display nonlinearity of the soil-pile system. The soil-pile separation lengths for all the eccentric moments are deduced by measuring the contact pressure between the pile and soil. The nonlinear responses characteristics of the soil-pile system is also obtained from the continuum approach analysis using the experiential soil-pile separation length and frequency-amplitude responses. From the analysis, the variation of the parameters responsible for the nonlinear responses of the piles with depth and eccentric moment are determined.
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Information & Authors
Information
Published In
Geo-Congress 2023
Pages: 162 - 169
History
Published online: Mar 23, 2023
ASCE Technical Topics:
- Analysis (by type)
- Continuum mechanics
- Coupling
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering mechanics
- Foundations
- Geomechanics
- Geotechnical engineering
- Motion (dynamics)
- Nonlinear response
- Numerical analysis
- Pile foundations
- Piles
- Rotation
- Soil dynamics
- Soil mechanics
- Soil-pile interaction
- Solid mechanics
- Structural behavior
- Structural engineering
- Structural members
- Structural systems
- Vibration
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