Geomechanics and Engineering

Techno-Press (테크노프레스)
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Seismic lateral earth pressure analysis of retaining walls

  • Ismeik, Muhannad (Department of Civil Engineering, The University of Jordan) ;
  • Shaqour, Fathi (Department of Applied Geology and Environment, The University of Jordan)
  • Received : 2013.09.30
  • Accepted : 2014.12.13
  • Published : 2015.04.25
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Abstract

Based on limit equilibrium principles, this study presents a theoretical derivation of a new analytical formulation for estimating magnitude and lateral earth pressure distribution on a retaining wall subjected to seismic loads. The proposed solution accounts for failure wedge inclination, unit weight and friction angle of backfill soil, wall roughness, and horizontal and vertical seismic ground accelerations. The current analysis predicts a nonlinear lateral earth pressure variation along the wall with and without seismic loads. A parametric study is conducted to examine the influence of various parameters on lateral earth pressure distribution. Findings reveal that lateral earth pressure increases with the increase of horizontal ground acceleration while it decreases with the increase of vertical ground acceleration. Compared to classical theory, the position of resultant lateral earth force is located at a higher distance from wall base which in turn has a direct impact on wall stability and economy. A numerical example is presented to illustrate the computations of lateral earth pressure distribution based on the suggested analytical method.

Keywords

References

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