in the present investigation, the cyclic load deformation behaviour of soil-fly ash layered system isstudied using different intensities of failure load (i = 25%, 50% and 75%) with varying number of cycles (n =10, 50 and 100). an attempt has been made to establish the use of fly ash as a fill material for embankments ofhighways and railways and to examine the effect of cyclic loading on the lay...

designing and scheduling of drip irrigation systems are often done without enough information about water distribution in the soil. due to tillage operations and crop production practices, agricultural soils can be considered as two layered soils with different bulk densities. the top soil layer has a lighter texture than the sub soil layer. in this research, the development of the wetting fron...

Capillary rise tests were conducted on soil columns containing of three layers sandy soils with coarser over finer to investigate the effect relatively interlayer. The capillary height, rate, and water distribution observed in laboratory four layered columns, two homogeneous (without interlayer) serving as controls. final maximum height column interlayer was larger than that without when laid a...

This paper presents the ElastoDynamics Toolbox (EDT) for MATLAB.1 EDT provides an extensive set of MATLAB functions to model seismic wave propagation in layered soils. It is based on the direct stiffness method and the thin layer method, presented by Kausel and Roësset. The toolbox is developed at K.U.Leuven, where it is used both for educational purposes and in research projects. It is used to...

One of the reasons for selecting Meridiani Planum as one of the two landing sites for the MER (Mars Exploration Rover) mission was the detection of a hematite signature by the TES (Thermal Emission Spectrometer) instrument onboard MGS (Mars Global surveyor) [1]. The presence of hematite at Meridiani has since been confirmed by instruments of the Athena Science Payload of the Opportunity MER rov...

Transfer functions are constantly used in both Seismology and Geotechnical Earthquake Engineering to relate seismic ground motion at different depths within strata. In the context of diffusive theory, they also appear expression imaginary part 1D Green’s functions. spite their remarkable importance, mathematical structure is not fully understood yet, except simplest cases two or three layers mo...

In the last years the authors have developed a numerical formulation based on the Boundary Element Method for the analysis of grounding systems embedded in uniform soils. This approach has been implemented in a CAD system that currently allows to analyze real grounding grids in real-time in personal computers. The extension of this approach for the grounding analysis in layered soils is straigh...

This paper presents a study for solving unsaturated flow in heterogeneous porous media using the meshless method with radial basis function (RBF). For modeling nonlinear hydrological process zone, an exponential model is introduced Richards equation such that we may obtain linearized equation. We adopt multiquadric as RBF simulating problems layered soils, flux and head must satisfy continuity ...