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<p>In this paper, particle flow code was used to simulate unreinforced and reinforced soil slopes above the void under surface footing pressure. To validate the simulations, the results of analyses have verified with experimental tests presented in the past study. The effect of the horizontal position of a single void relative to the footing center on the footing settlement and vertical displacement of the tube roof with and without the supporting tube is evaluate. In simulations, four different geogrid and supporting tube configurations were used. The results indicated that the geogrid and supporting tube significantly influences the footing settlement and vertical displacement of the tube roof. In addition, by increasing in the horizontal distance between the void center and footing center, the loading pressure of the footing increases while the footing settlement reduces. In presence of supporting tube and geogrid, the void deformation are less than other configurations. The settlement of ground surface has maximum curvature when the supported void was situated exactly below the strip footing. Application of supporting tube and geogrid has the best performance on the control of ground surface.</p>

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Particle Flow Code Simulation of the Interaction Between Surface Foundation and Pre-Existing Reinforced Cavity Surrounded in Soil Slope

  • 期刊论文

  • 发表日期：

    2025年5月10日

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  • Vahab Sarfarazi,
  • Abdollah Tabaroei,
  • B. P. Naveen,
  • Hadi Haeri

摘要

In this paper, particle flow code was used to simulate unreinforced and reinforced soil slopes above the void under surface footing pressure. To validate the simulations, the results of analyses have verified with experimental tests presented in the past study. The effect of the horizontal position of a single void relative to the footing center on the footing settlement and vertical displacement of the tube roof with and without the supporting tube is evaluate. In simulations, four different geogrid and supporting tube configurations were used. The results indicated that the geogrid and supporting tube significantly influences the footing settlement and vertical displacement of the tube roof. In addition, by increasing in the horizontal distance between the void center and footing center, the loading pressure of the footing increases while the footing settlement reduces. In presence of supporting tube and geogrid, the void deformation are less than other configurations. The settlement of ground surface has maximum curvature when the supported void was situated exactly below the strip footing. Application of supporting tube and geogrid has the best performance on the control of ground surface.