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Geomechanics and Engineering Volume 5, Number 3, June 2013 , pages 223-240 DOI: https://doi.org/10.12989/gae.2013.5.3.223 |
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Prediction of nonlinear characteristics of soil-pile system under vertical vibration |
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Sanjit Biswas, Bappaditya Manna and Shiva S. Choudhary
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| Abstract | ||
| In the present study an attempt was made to predict the complex nonlinear parameters of the soil-pile system subjected to the vertical vibration of rotating machines. A three dimensional (3D) finite element (FE) model was developed to predict the nonlinear dynamic response of full-scale pile foundation in a layered soil medium using ABAQUS/CAE. The frequency amplitude responses for different eccentric moments obtained from the FE analysis were compared with the vertical vibration test results of the full-scale single pile. It was found that the predicted resonant frequency and amplitude of pile obtained from 3D FE analysis were within a reasonable range of the vertical vibration test results. The variation of the soil-pile separation lengths were determined using FE analysis for different eccentric moments. The Novak | ||
| Key Words | ||
| boundary zone parameter; layered soils; nonlinear response; soil-pile separation; vertical vibration; 3D finite element analysis | ||
| Address | ||
| Sanjit Biswas, Bappaditya Manna, Shiva S. Choudhary: Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India | ||