Loosely packed cohesionless soils may suffer partial or complete liquefaction during seismic loading, causing significant structural damage. The dynamic behavior of liquefiable is widely investigated through element testing under controlled cyclic loading in undrained conditions. In this work, a total 20 stress-controlled triaxial experiments were conducted on saturated specimens clean sand to ...

The factors and mechanisms controlling the accumulation of shear strains clean uniform sands exhibiting cyclic mobility behavior under level-ground conditions are examined. This phenomenon is investigated through a series constant-volume direct simple (DSS) tests subjected to irregular loading conditions, undrained element collected from literature. Experimental data show that rate strain per c...

In this study buckling analysis of solid rectangular plate made of porous material bounded with the layers of piezoelectric actuators in undrained condition is investigated. Porous material properties vary through the thickness of plate with a specific function. Distributing of the pores through the plate thickness is assumed to be the nonlinear nonsymmetric distribution. The ...

Oil leakage causes soil contamination and induces changes in the physical and mechanical properties of soils. In areas contaminated with oil products such as gasoline, the implementation of civilian operations requires determination and prediction of soil behavior in the existing conditions. In this research work, the effect of oil contamination by gasoline obtained from the National Oil Compan...

in this paper shear behavior of two calcareous sands having different physical properties areinvestigated using drained and undrained triaxial tests. the investigated sands are obtained from two differentzones located in persian gulf, kish island and tonbak region. analysis based on energy aspects show thatfriction angle in these soils, having crushable particles, is formed of three components:...

Borehole tube sampling is a key process of geotechnical engineering. The paper presents numerical analyses smooth in clay using the particle finite-element method. soil described by conventional elasto-plastic constitutive model (Tresca plasticity and quasi-incompressible elastic law). sampler advanced several diameters into until steady state observed. solution for round-tipped clearly identif...

Tile drainage belongs to one of the most important meliorative measures in Czech Republic. It has been hypothesised that it may improve some soil properties which are influenced by groundwater and their water regime. In case meadows, used management method also influence properties. this study, different physical (particle bulk density, total porosity, maximum capillary capacity, minimum air re...