Comparative analysis of linear dynamic responses and undamped systems of soil-pile-footing interaction for various soil media

Meghna  Pathak; Ravindra  Pathak; Jagdish Narayan  Vyas

doi:10.30574/gscarr.2021.8.1.0146

Authors

Meghna Pathak Department of Civil Engineering, Mahakal Institute of Technology and Management, Ujjain M.P. India.
Ravindra Pathak Department of Civil Engineering, Ujjain Engineering College, Ujjain M.P. India
Jagdish Narayan Vyas Department of Civil Engineering, Mahakal Institute of Technology and Management, Ujjain M.P. India.

DOI:

https://doi.org/10.30574/gscarr.2021.8.1.0146

Keywords:

Friction Soils, Cohesive Soil, Mohr-Coulomb, Abaqus CAE, Damping Response, Soil-Pile System

Abstract

It is seen from recent earthquakes that in case of fixed-base foundation system, damped systems have proved to be longing the lifespan of the structure by lengthening the lateral fundamental period that leads to higher damping in comparison to the assumptions of a fixed-base system.

In this study, to better understand the phenomenon involved in soil-pile interaction a finite element simulation model is developed in Abaqus FEA software. The numerical model made for transient analysis follows Rayleigh's Damping Coefficient model for material damping.

In this paper, a rational analysis of Dynamic Response of a Short-Bored Pile is made subject to axial load by the Finite Element Method. The analysis is performed using finite element Abaqus CAE software. The Soil media is developed for sand soil and clay soil with pile material as Mild Steel and RCC, and analysis is made for the combination of each material group with the incremental axial load. The same FE model is studied for damped material used in piles which results in a drastic change in displacement pattern.

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