Effect of variation of temperature field on the process of thermal consolidation of tailings pond “Żelazny Most”

• Autorzy: Bartlewska-Urban M. , Strzelecki T.

Identyfikatory

DOI

10.2478/sgem-2014-0021

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

thermal consolidation; poroelasticity theory; rheology; Kelvin–Voigt body; Biot theory

PL

teoria Biota; ciało Kelvina-Voighta; reologia; konsolidacja cieplna

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2014
• Tom: Vol. 36, nr 2
• Strony: 57--65
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Bartlewska-Urban M.

• Wrocław University of Technology, Institute of Mining, Wrocław, Poland

autor

Strzelecki T.

• Wrocław University of Technology, Institute of Geotechnics and Hydrotechnics, Wrocław, Poland

Bibliografia

• [1] BARTLEWSKA M., STRZELECKI T., Equations of Biots consolidation with Kelvin–Voight rheological frame, Studia Geotechnica et Mechanica, Vol. XXXI, 2009, No. 2, 3–15.
• [2] BARTLEWSKA-URBAN M., STRZELECKI T., Thermal consolidation of porous medium with a rheological Kelvin–Voigt skeleton, Studia Geotechnica et Mechanica, 2012, 34, 3, 17–35.
• [3] BIOT M.A., General theory of three-dimensional consolidation, J. Appl. Phys., 1941, 12, 155.
• [4] BIOT M.A., General Solutions of the Equations of Elasticity and Consolidation of a Porous Material, J. Appl. Mech., 1956, 23.
• [5] DERSKI W., Some Contributions to the Theory of Flow of Fluids through porous Deformable Media, Acta Mechanica, 1967, IV/1.
• [6] BENSOUSSAN A., LIONS J.L., PAPANICOLAU G., Asymptotic analysis for periodic structures, North Holland Publishing Company, Amsterdam 1978.
• [7] AURIAULT J.L., Dynamic behaviour of porous media, Transport Processes in Porous Media, Kluver Academic Publish- ers, 1991, 471–519.
• [8] AURIAULT J.L., SANCHEZ PALENCIA E., Etude de comportement macroscopique d’un milieu poreuxsature deformable, Journal de Mecanique, 1977, 16 (4), 575–603.
• [9] KRÖNER E., Effective elastic moduli of periodic and random media: a unification, Mechanics Research Communication, 1980, 7 (5), 323–327.
• 10] RUBINSTEIN J., TORQUATO S., Flow in random porous media: mathematical formulation, variational principles and rigorous bounds, J. Fluid Mech., 1989, 206, 25–46.
• [11] AURIAULT J.L., STRZELECKI T., BAUER J. HE S., Porous deformable media by a very compressible fluid, Eur. J. Mech. a. Solid, 1990, 9, 4, 373–392.
• [12] BARTLEWSKA-URBAN M., STRZELECKI T., One-dimensional consolidation of the porous medium with the rheological Kelvin–Voigt skeleton, Studia Geotechnica et Mechanica, 2008, 30, 1/2, 115–122.
• [13] COUSSY O., Mechanics and physics of porous solids, John Wiley & Sons, 2011.
• [14] KOWALSKI S.J., MUSIELAK G., RYBICKI A., Drying Processes in Context of the Theory of Fluid Saturated Porous Materials, J. Theoretical and Applied Mechanics, 1998, 36, 3.
• [15] STRZELECKI T., KOSTECKI S., ŻAK S., Modelowanie przepływów przez ośrodki porowate, Dolnośląskie Wydawnictwo Edukacyjne, Wrocław 2008.
• [16] CUDNY M., BINDER K. Kryteria wytrzymałości gruntu na ścinanie w zagadnieniach geotechniki (On shear strength criteria for soils in geotechnics), Inżynieria Morska i Geotechnika, 2005, 6, 456–465 (PDF).
• [17] NIEMUNIS A., Über die Anwendung der Kontinuumstheorie auf bodenmechanische Probleme, Eine Vorlesung für Grundbau- und Tunnelbauvertiefer, Uniwersytet w Bochum, on line: www.gub.ruhr-uni-bochum.de/mitarbeiter/andrzej_niemunis.htm, 2003.
• [18] BARTLEWSKA M., The doctoral dissertation on the theme: Określenie parametrów efektywnych modeli reologicznych gruntów spoistych, Politechnika Wrocławska, Faculty of Geoengineering, Mining and Geology, Wrocław 2009.