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<p>The study compares the effectiveness of gravel berm and stone column improvement strategies for controlling liquefaction-induced effects in an embankment lying on liquefiable soil. Three different numerical patterns have been mimicked in Plaxis-3D to examine the efficacy of two mitigation strategies for embankments lying on liquefiable soils. Initially, simulations have been done for the benchmark embankment model without any measures. The study was extended to incorporate two different mitigation measures as a gravel berm and a stone column, separately. The constitutive behaviour of liquefiable soil has been simulated using the UBC3D-PLM model. All 3 patterns have been subjected to 10 earthquake ground motions. Excess pore pressure ratio approaches unity below the toe. A linear association is perceived between the Arias intensity of input waves and that of the embankment crest. The stone column mitigation was most effective in controlling excess pore pressure and displacements.</p>

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Liquefaction Mitigation Methods: A Comparative Study by Finite Element Simulations by PLAXIS 3D

  • 期刊论文

  • 发表日期：

    2025年12月29日

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  • Abhijit Chakraborty,
  • Vishwas A. Sawant

摘要

The study compares the effectiveness of gravel berm and stone column improvement strategies for controlling liquefaction-induced effects in an embankment lying on liquefiable soil. Three different numerical patterns have been mimicked in Plaxis-3D to examine the efficacy of two mitigation strategies for embankments lying on liquefiable soils. Initially, simulations have been done for the benchmark embankment model without any measures. The study was extended to incorporate two different mitigation measures as a gravel berm and a stone column, separately. The constitutive behaviour of liquefiable soil has been simulated using the UBC3D-PLM model. All 3 patterns have been subjected to 10 earthquake ground motions. Excess pore pressure ratio approaches unity below the toe. A linear association is perceived between the Arias intensity of input waves and that of the embankment crest. The stone column mitigation was most effective in controlling excess pore pressure and displacements.