Numerical Study on the Seismic Behaviour of Embankments on Stone Column-Reinforced Soft Soils

Seismic response analysis of embankments on stone column-reinforced soft ground is presented in this study. The effect of stone column reinforcement on the behaviour of embankments during seismic excitation was studied using a 3D finite element programme . The seismic response of the embankments was...

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Veröffentlicht in:Transportation infrastructure geotechnology 2023-04, Vol.10 (2), p.239-258
Hauptverfasser: Dar, Lateef Ahmad, Shah, Mohammad Yousuf
Format: Artikel
Sprache:eng
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Zusammenfassung:Seismic response analysis of embankments on stone column-reinforced soft ground is presented in this study. The effect of stone column reinforcement on the behaviour of embankments during seismic excitation was studied using a 3D finite element programme . The seismic response of the embankments was analysed by mapping the deformations and excess pore water pressure (EPP) development at various locations in the embankment. The effect of spacing to diameter ratio (S/D) of stone columns on the seismic response of embankments was also studied. The results showed a substantial improvement in the seismic behaviour of embankments with the inclusion of stone columns in the foundation soil. Deformations and EPP development reduced considerably due to the stone column reinforcement. The deformation at the top of the embankment reduced by 80% and the EPP values near the base of the embankment attenuated by 90% in case of stone column-reinforced embankments. The S/D ratio largely influenced the seismic response of the embankments as the deformations and EPP values reduced considerably for lower S/D ratios.
ISSN:2196-7202
2196-7210
DOI:10.1007/s40515-021-00219-x