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  • 1
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    Pile Load Capacity – Calculation Methods (2015)
    De Gruyter
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    Publication Date: 2015-12-01
    Description: The article is a review of the current problems of the foundation pile capacity calculations. The article considers the main principles of pile capacity calculations presented in Eurocode 7 and other methods with adequate explanations. Two main methods are presented: α – method used to calculate the short-term load capacity of piles in cohesive soils and β – method used to calculate the long-term load capacity of piles in both cohesive and cohesionless soils. Moreover, methods based on cone CPTu result are presented as well as the pile capacity problem based on static tests.
    Print ISSN: 0137-6365
    Electronic ISSN: 2083-831X
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Published by De Gruyter
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  • 2
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    Dynamics Coefficient for Two-Phase Soil Model (2015)
    De Gruyter
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    Publication Date: 2015-02-28
    Description: The paper investigates a description of energy dissipation within saturated soils-diffusion of pore-water. Soils are assumed to be two-phase poro-elastic materials, the grain skeleton of which exhibits no irreversible behavior or structural hysteretic damping. Description of motion and deformation of soil is introduced as a system of equations consisting of governing dynamic consolidation equations based on Biot theory. Selected constitutive and kinematic relations for small strains and rotation are used. This paper derives a closed form of analytical solution that characterizes the energy dissipation during steady-state vibrations of nearly and fully saturated poro-elastic columns. Moreover, the paper examines the influence of various physical factors on the fundamental period, maximum amplitude and the fraction of critical damping of the Biot column. Also the so-called dynamic coefficient which shows amplification or attenuation of dynamic response is considered.
    Print ISSN: 0137-6365
    Electronic ISSN: 2083-831X
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
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  • 3
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    Slope Stability Estimation of the Kościuszko Mound in Cracow (2015)
    De Gruyter
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    Publication Date: 2015-06-01
    Description: In the paper, the slope stability problem of the Kościuszko Mound in Cracow, Poland is considered. The slope stability analysis was performed using Plaxis FEM program. The outer surface of the mound has complex geometry. The slope of the cone is not uniform in all directions, on the surface of the cone are pedestrian paths. Due to its complicated geometry it was impossible to do computing by Plaxis input pre-procesor. The initial element mesh was generated using Autodesk Autocad 3D and next it was updated by Plaxis program. The soil parameters were adopted in accordance with the detailed geological soil testing performed in 2012. Calculating model includes geogrids. The upper part was covered by MacMat geogrid, while the lower part of the Mound was reinforced using Terramesh Matt geogrid. The slope analysis was performed by successives reduction of φ /c parameters. The total multiplayer ΣMsf is used to define the value of the soil strength parameters. The article presents the results of slope stability before and after the rainfall during 33 days of precipitation in flood of 2010.
    Print ISSN: 0137-6365
    Electronic ISSN: 2083-831X
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Published by De Gruyter
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  • 4
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    INFLUENCE OF INERTIA FORCES ON SOIL SETTLEMENT UNDER HARMONIC LOADING (2013)
    De Gruyter
    Details
    Publication Date: 2013-03-01
    Description: The paper deals with the comparison of Biot’s model for saturated, porous soils with other simplified models used in dynamic analysis. The purpose of this paper is to determine some limits of validity of the various models. In order to do this a full set of governing, dynamic equations of Biot model and a series of simplifying models such as u-p simplification and quasi-static consolidation models are considered. These formulations are applied to a simple soil layer under periodic surface loading. A displacement of skeleton and a displacement of fluid are shown and compared with each model for various formulations.
    Print ISSN: 0137-6365
    Electronic ISSN: 2083-831X
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Published by De Gruyter
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