Geotechnical models consistently indicate that the stress-strain relationship of soils is nonlinear and hysteretic, especially at shear strains larger than 1 0 5 to 10 .4 . Nonlinear effects, such as an increase in damping and reduction in shearwave velocity as excitation strength increases, are commonly recognized in the dynamic loading of soils. On the other hand, these effects are usually ig...

Estimating active earth pressure accurately is very important when designing retaining wall. Based on the unified strength theory and plane strain assumption, an analytical solution has been developed to determine the active lateral earth pressure distribution on a retaining structure with the inclined cohesive backfill considering the effect of the intermediate principal stress. The solution d...

Cohesionless gap-graded soils are susceptible to volumetric internal erosion, also called suffusion, under the action of seepage flow through porous material. More precisely, during suffusion three processes simultaneously take place: detachment, transport and possible filtration fine particles. This paper proposes a new relationship describe development based on energy approach. The proposed i...

This study proposes an innovative mathematical formula that uses multigene Genetic Programming (GP), a recently developed soft computing technique, to predict the ultimate bearing capacity of shallow foundations on cohesionless soils. The real performance of previously developed approaches is also investigated. The multigene GP-based formula was calibrated and validated using an experimental da...

This paper investigates the use of three back-propagation training algorithms, Levenberg-Marquardt, conjugate gradient and resilient back-propagation, for the two case studies, stream-flow forecasting and determination of lateral stress in cohesionless soils. Several neural network (NN) algorithms have been reported in the literature. They include various representations and architectures and t...

The geotechnical behavior of cohesionless soils is governed by field conditions. Such exist in two distinct forms, namely: disintegrated, such as fresh sediments under no overburden and/or suction, and intact, old deposits with suction. main contribution this research was the successful capture conditions laboratory samples, determination shear strength saturated dried states. Results indicated...

Displacement finite element analysis is performed for a cone-penetration test in cohesionless soils. By modelling finite strain in the soil and large scale sliding at the penetrometer–soil interface, a more realistic penetration process is simulated in which the penetrometer is assumed to be rigid and the soil is assumed to be an elastic-perfect-plastic continuum obeying the Mohr–Coulomb criter...