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<p>Landslides triggered by seismic loading pose severe risks to infrastructure and human safety. Stabilizing piles are widely used to reinforce slopes; however, their seismic performance requires detailed evaluation. This study aims to investigate the behaviour of stabilizing piles under various loading conditions, including static and seismic loads, through finite element simulations in PLAXIS 3D. The research evaluates the impact of key parameters such as pile length, diameter, spacing, and embedment depth on the performance of stabilizing piles during seismic events. Additionally, the simulations consider the influence of soil properties, such as shear strength and friction angle, on pile response and overall stability. The results indicate that increasing pile length enhances seismic performance, yielding an 82.86% reduction in displacement, as longer piles offer greater resistance to lateral forces and improve overall stability. Larger pile diameters improved performance, reducing lateral displacement by 23.08%. Similarly, reducing the spacing between piles reduced displacement by 62.14%, promoting better load distribution and minimizing the risk of failure mechanisms. Additionally, increasing the internal friction angle from 30° to 38° reduced displacement by 27.88%, and higher soil density improved stability by 16.49%. These findings can contribute to the optimization of stabilizing pile design and installation, leading to more effective landslide mitigation in seismically active regions.</p>

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Seismic Response Analysis of Stabilising Piles for Mitigation of Landslides

  • 期刊论文

  • 发表日期：

    2026年2月5日

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  • Manu K. Sajan,
  • Hema Gurappa Pol,
  • Babloo Chaudhary

摘要

Landslides triggered by seismic loading pose severe risks to infrastructure and human safety. Stabilizing piles are widely used to reinforce slopes; however, their seismic performance requires detailed evaluation. This study aims to investigate the behaviour of stabilizing piles under various loading conditions, including static and seismic loads, through finite element simulations in PLAXIS 3D. The research evaluates the impact of key parameters such as pile length, diameter, spacing, and embedment depth on the performance of stabilizing piles during seismic events. Additionally, the simulations consider the influence of soil properties, such as shear strength and friction angle, on pile response and overall stability. The results indicate that increasing pile length enhances seismic performance, yielding an 82.86% reduction in displacement, as longer piles offer greater resistance to lateral forces and improve overall stability. Larger pile diameters improved performance, reducing lateral displacement by 23.08%. Similarly, reducing the spacing between piles reduced displacement by 62.14%, promoting better load distribution and minimizing the risk of failure mechanisms. Additionally, increasing the internal friction angle from 30° to 38° reduced displacement by 27.88%, and higher soil density improved stability by 16.49%. These findings can contribute to the optimization of stabilizing pile design and installation, leading to more effective landslide mitigation in seismically active regions.