Sheet pile walls are needed for deep excavation during construction in congested metropolitan areas near existing structures. Using a two-dimensional finite element method, this study examines the lateral wall deflection, bending moment, and ground settlement of sheet piles under a uniform surcharge strip load imposed at various vertical locations along the wall depth from the wall top edge in dense sand. To include the construction effects during wall installation, front fill soil is excavated in four layers in sequence. The footing position and magnitude of surcharge loads are altered to carry out a parametric study. The findings show that placing the footing at the wall’s top edge results in maximum wall deflection, bending moment, and ground settlement. As the depth of the footing advances, the impact on the sheet pile reduces. Increased surcharge magnitude causes greater wall deflection, bending moment, and ground settlement. The current numerical model is validated using existing literature.

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A Parametric Study of the Sheet Pile Wall Embedded in Dense Sand

  • Abhijit Debnath,
  • Sujit Kumar Pal

摘要

Sheet pile walls are needed for deep excavation during construction in congested metropolitan areas near existing structures. Using a two-dimensional finite element method, this study examines the lateral wall deflection, bending moment, and ground settlement of sheet piles under a uniform surcharge strip load imposed at various vertical locations along the wall depth from the wall top edge in dense sand. To include the construction effects during wall installation, front fill soil is excavated in four layers in sequence. The footing position and magnitude of surcharge loads are altered to carry out a parametric study. The findings show that placing the footing at the wall’s top edge results in maximum wall deflection, bending moment, and ground settlement. As the depth of the footing advances, the impact on the sheet pile reduces. Increased surcharge magnitude causes greater wall deflection, bending moment, and ground settlement. The current numerical model is validated using existing literature.