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PHYSICAL MODELLING, SHAKING TABLE EXPERIMENTS, AND NUMERICAL SIMULATIONS OF SEISMIC ACTIONS ON RETAINING WALLS WITH DIFFERENT SUPPORT CONDITIONS
Rohit Tiwari
Paper No.: 598
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Vol.: 62
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No.: 2
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June, 2025
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pp. 129-139
Abstract
Earthquake response of base restrained and rotational base retaining wall is presented. Details of the
scaled down modelling and the construction of the scaled down retaining wall models are also shown.
Seismic performance of the scaled down models of base restrained and rotational base retaining wall is
examined by conducting several shaking table experiments on them. Different high velocity pulse (HVPs)
and string of pulses (multiple pulses) were applied at the base of both the retaining wall models to
investigate their performance during the shaking table experiment. The results of shaking table experiments
were than used to study the forced and free vibration response of the base restrained and rotational base
retaining wall models. Finite element (FE) investigations were also carried out to understand the capability
of the FE models to replicate the shaking table experiment results. Details to develop a robust FE model of
the base restrained and rotational base retaining wall are also presented. During the shaking table
experiments active and passive state movements were observed for both the retaining wall models. In the
case of rotational base retaining wall, the dissipation of seismic forces resulted in its limited seismic
movements, though the magnitudes of these movements are not insignificant.
Keywords: Earthquake, Retaining Wall, Boundary Conditions, Shaking Table Experiment, Finite Element Model
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