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    Wyświetlanie 1-3 z 3
    Tytuł:
    Numerical analysis of road pavement thermal deformability, based on Biot viscoelastic model of porous medium
    Autorzy:
    Bartlewska-Urban, M.
    Zombroń, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/178530.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    Biot theory
    thermal consolidation
    rheological body of Kelvin-Voigt
    road pavement
    Opis:
    The following study presents numerical calculations for establishing the impact of temperature changes on the process of distortion of biphase medium represented using Biot consolidation equations with Kelvin–Voigt rheological skeleton presented, on the example of thermo-consolidation of a pavement of expressway S17. We analyzed the behavior of the expressway under the action of its own weight, dynamic load caused by traffic and temperature gradient. This paper presents the application of the Biot consolidation model with the Kelvin–Voigt skeleton rheological characteristics and the influence of temperature on the deformation process is taken into account. A three-dimensional model of the medium was created describing the thermal consolidation of a porous medium. The 3D geometrical model of the area under investigation was based on data obtained from the land surveying and soil investigation of a 200 m long section of the expressway and its shoulders.
    Źródło:
    Studia Geotechnica et Mechanica; 2016, 38, 1; 15-22
    0137-6365
    2083-831X
    Pojawia się w:
    Studia Geotechnica et Mechanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of variation of temperature field on the process of thermal consolidation of tailings pond “Żelazny Most”
    Autorzy:
    Bartlewska-Urban, M.
    Strzelecki, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/178288.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    thermal consolidation
    poroelasticity theory
    rheology
    Kelvin–Voigt body
    Biot theory
    teoria Biota
    ciało Kelvina-Voighta
    reologia
    konsolidacja cieplna
    Opis:
    The following study presents numerical calculations for establishing an impact of temperature changes on the process of distortion of bi-phase medium. The Biot consolidation equations with Kelvin–Voigt rheological skeleton were used for that purpose. The process was exemplified by thermal consolidation of post floatation dump “Żelazny Most”. We analyzed the behavior of the landfill under the action of its own weight, forces of floating filtration and temperature gradient. Values of certain effective parameters of model were obtained during laboratory tests on material obtained from the landfill. The remaining data for mediums with similar characteristics were taken from literature. The results obtained from the stress state in the landfill allow the magnitude of plasticity potential to be specified based on known strength criteria. Change in the value sign of the plasticity potential clearly testifies to the emergence of an area of plasticity of material from landfill, however, this does not indicate the loss of stability of this hydrotechnical structure.
    Źródło:
    Studia Geotechnica et Mechanica; 2014, 36, 2; 57-65
    0137-6365
    2083-831X
    Pojawia się w:
    Studia Geotechnica et Mechanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical calculation of deformation of three dimensional sample in triaxial apparatus under external load and temperature field
    Autorzy:
    Bartlewska-Urban, M.
    Strzelecki, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/178206.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    geotechnika
    termokonsolidacja
    ośrodek porowaty
    obliczenia numeryczne
    reologiczny szkielet Kelvina-Voigta
    thermal consolidation
    numerical calculations
    porous medium
    Kelvin-Voight rheological skeleton
    Opis:
    This study presents the results of calculations of the of thermo consolidation process of porous medium with the rheological Kelvin–Voigt skeleton, obtained numerically with the use of Flex.PDE. It is a continuation of the discussion on the phenomenon of thermal consolidation. A 3D problem considered boils down to solving the problem of the porous column filled with a liquid and treated by applying uniaxial compression load through a porous plate, allowing free flow of liquid from the center. To the sample affected by external lateral pressure. Numerical solution assumes compressing the sample at properly defined boundary conditions. The aim of this study was to describe the influence of external load and temperature gradient in the deformation tests for the case when the lateral surface is a good conductor of heat, and where the lateral surface of the sample does not conduct heat. The results obtained, in the context of further research, can also be used to determine the influence of other parameters of the state and model parameters on the process of thermo poroelasticity of the Biot model with rheological skeleton.
    Źródło:
    Studia Geotechnica et Mechanica; 2013, 35, 1; 27-40
    0137-6365
    2083-831X
    Pojawia się w:
    Studia Geotechnica et Mechanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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