Lateral earth pressure

About: Lateral earth pressure is a research topic. Over the lifetime, 5334 publications have been published within this topic receiving 62552 citations.

Passive earth pressures in the presence of hydraulic gradients

Abstract: The paper describes a variational approach applied to the limit equilibrium method for calculating the effective passive pressures of a cohesionless soil, taking into consideration the seepage flow. It is shown that in the general case of non-homogeneous and non-isotropic hydraulic properties of the soil medium, the shape of the slip surface which verifies the three limiting equilibrium equations of the soil mass at failure is a log-spiral. It is also shown that the passive earth pressure calculation is independent of the normal stress distribution along this surface. The variational limit equilibrium method is equivalent to the upper bound method in limit analysis for a rotational log-spiral mechanism. Numerical results of the coefficients of passive earth pressures in the presence of seepage flow are presented and discussed. Cet article presente une approche variationnelle appliquee a la methode du prisme de rupture permettant le calcul de la pression passive effective des terres en presence d'ecoulemen...

Consolidation of Normally Consolidated Clay

Abstract: Based on the idealized physical properties of saturated, normally consolidated clay, a simple nonlinear theory of one-dimensional consolidation is developed and solved by means of finite difference approximations. To assess the validity of the theory, tests were conducted on three remoulded saturated clays in 10-in. diameter oedometers in which settlements, pore pressures, and total stresses were measured. It was found that for the materials tested, the nonlinear theory is in closer agreement with the observations than the linear Terzaghi theory. For tests in which the variation in permeability is marked, the Terzaghi theory gives poor agreement between settlement and pore pressure observations. However, for normal pressure increments in saturated clays that do not exhibit a marked decrease in permeability or other unusual characteristics, the Terzaghi theory appears to be adequate for all practical purposes, particularly at the field scale where the effects of structural viscosity are less dominant.

FE Analyses: Compaction-Induced Stresses and Deformations

Abstract: Analytical models and a finite element analysis methodology are presented for evaluation of compactioninduced soil stresses and resulting soilstructure interaction effects. These analytical methods...