Charts for estimating active earth pressures on retaining walls assuming Hoek Brown non-lineal strength criterion

摘要

Useful charts for estimating earth active pressures on retaining walls are presented, covering a wide range of parameters. They have been obtained by a new method which is an extension of Coulomb's earth pressure theory for non cohesive materials that can follow a non-linear strength criterion. This was previously done by the authors (Serrano et al, 2007, 2010) for some basic assumptions. The method is valid for materials that may have either a linear or non-linear strength criterion (any parabolic or Hoek-Brown), a non-horizontal surface and an earth-wall friction angle. It considers the material dilatancy. Moreover, the failure surface does not need to be plane, as in previously developed methods, but its shape is obtained as a result of the calculus, being this point the most remarkable achievement.