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Geomechanics and Engineering
  Volume 4, Number 3, September 2012 , pages 209-218
DOI: https://doi.org/10.12989/gae.2012.4.3.209
 


An analytical expression for the dynamic active thrust from c-φ soil backfill on retaining walls with wall friction and adhesion
Sanjay K. Shukla* and Richard J. Bathurst

 
Abstract
    This paper presents the derivation of an analytical expression for the dynamic active thrust from c-φ (c = cohesion, φ = angle of shearing resistance) soil backfill on rigid retaining walls with wall friction and adhesion. The derivation uses the pseudo-static approach considering tension cracks in the backfill, a uniform surcharge on the backfill, and horizontal and vertical seismic loadings. The development of an explicit analytical expression for the critical inclination of the failure plane within the soil backfill is described. It is shown that the analytical expression gives the same results for simpler special cases previously reported in the literature.
 
Key Words
    c-φ soil backfill; dynamic active thrust; retaining wall; seismic loads; surcharge; tension cracks; wall friction and adhesion
 
Address
Sanjay K. Shukla : Discipline of Civil Engineering, School of Engineering, Edith Cowan University, 270 Joondalup Drive,
Joondalup, WA 6027, Australia
Department of Civil Engineering, Indian Institute of Technology (BHU), Varanasi - 221 005, India
Richard J. Bathurst : GeoEngineering Centre at Queen
 

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