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A coupled three-phase FE-model for dewatering of soils by means of compressed air

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Języki publikacji
EN
Abstrakty
EN
A coupled three-phase soil model, consisting of a deformable soil skeleton and the fluid phases water and compressed air, applicable for tunnelling below the ground-water table by means of compressed air, is presented. In this model interactions of the flow of the fluids in the soil with the deformations of the soil skeleton are taken into account in a physically consistent manner. The theoretical background and the implementation of the model into a finite element code are briefly addressed. Several applications dealing with the numerical simulation of laboratory tests and a full-scale in-situ experiment are discussed. These experiments focus on the flow of (compressed) air in dry as well as semi-saturated soil.
Słowa kluczowe
EN
soil   air   FE model  
PL
Rocznik
Strony
1--22
Opis fizyczny
Bibliogr. 18 poz.,rys., wykr.
Twórcy
autor
  • University of Innsbruck, Department of Civil Engineering Institute for Structural Analysis and Strength of Materials A-6020 Innsbruck, Austria
autor
  • University of Innsbruck, Department of Civil Engineering Institute for Structural Analysis and Strength of Materials A-6020 Innsbruck, Austria
  • University of Innsbruck, Department of Civil Engineering Institute for Structural Analysis and Strength of Materials A-6020 Innsbruck, Austria
Bibliografia
  • [1] G. Beer, J. Plank. Joint research initiative on numerical simulation in tunnelling. Felsbau, 17(1): 7-9, 1999.
  • [2] M.A. Biot. General theory of three-dimensional consolidation. Journal of Applied Physics, 12(2): 155-164, 1941.
  • [3] R. de Boer, W. Ehlers, S. Kowalski, J. Plischka. Porous Media, a Survey of Different Approaches, Vol. 54 of Forschungsberichte aus dem Fachbereich Bauwesen. Universität-Gesamthochschule Essen, Essen, 1991.
  • [4] J.P. Carter, N.P. Balaam. AFENA User's Manual, Version 5.0. Centre for Geotechnical Research, University of Sydney, Sydney, 1995.
  • [5] D.G. Fredlund, H. Rahardjo. Soil Mechanics for Unsaturated Soils. John Wiley & Sons, New York, 1993.
  • [6) M.Th. van Genuchten. A closed-form equation for predicting the hydraulic conductivity of unsaturated soils. Soil Science Society of America Journal, 44: 892-898, 1980.
  • [7] T. Hochgürtel. Numerische Untersuchungen zur Beurteilung der Standsicherheit der Ortsbrust beim Einsatz von Druckluft zur Wasserhaltung im schildvorgetriebenen Tunnelbau. PhD thesis, Institut für Grundbau, Boden­mechanik, Felsmechanik und Verkehrswasserbau, RWTH-Aachen, Aachen, 1998.
  • [8] G. Hofstetter, G. Oettl, R.F. Stark. A soil model for tunneling under compressed air. In: W. Wunderlich, ed., Proceedings of the European Conference on Computational Mechanics, ECCM'99, CD-ROM. Lehrstuhl für Statik, TU München, München, 1999.
  • [9] C. Jommi, J. Vaunat, A. Gens, B.A. Schrefler, D. Gawin. Multiphase flow in porous media: A numerical bench­mark. In: Nafems World Congress 97 on Design, Simulation & Optimisation, Vol. 2, 1338-1349. Nafems Ltd., Glasgow, 1997.
  • [10] G. Kammerer. Experimentelle Untersuchungen von Stromungsvorgängen in teilgesättigten Böden und in Spritzbetonrissen im Hinblick auf den Einsatz von Druckluft zur Wasserhaltung im Tunnelbau. PhD thesis, Institut für Bodenmechanik und Grundbau, Technische Universität Graz , Graz , 2000.
  • [11] G. Klubertanz. Zur hydromechanischen Kopplung in dreiphasigen porösen Medien. PhD thesis, École Polytechnique Fédérale de Lausanne, Lausanne, 1999.
  • [12] J. Kramer. U-Bahn Bau in Essen, Baulos 30 - Spritzbetonbauweise unter Druckluft: Luftverbrauch und Spannungsumlagerungen im Boden, Senkungen. In: Proceedings der STUVA Tagung, Essen, Vol. 32 of Forschung + Praxis, 193-199. STUVA, Essen, 1987.
  • [13] J. Kramer, S. Semprich. Erfahrungen über Druckluftverbrauch bei der Spritzbetonbauweise. Taschenbuch für den Tunnelbau, 13: 91-153, 1989.
  • [14] R.W. Lewis, B.A. Schrefler. The Finite Element Method in the Static and Dynamic Deformation and Consolidation of Porous Media. John Wiley & Sons, Chichester, 2nd edition, 1998.
  • [15] A.C. Liakopoulos. Transient Flow Through Unsaturated Porous Media. PhD thesis, University of California, Berkeley, 1965.
  • [16] Y. Mualem. A new model for predicting the hydraulic conductivity of unsaturated porous media. Water Resources Research, 12 (3): 513-522, 1976.
  • [17] B.A. Schrefler, Z. Xiaoyong. A fully coupled model for water flow and airflow in deformable porous media. Water·Resources Research, 29(1): 155-167, 1993.
  • [18] O.C. Zienkiewicz, Y.M. Xie, B.A. Schrefler, A. Ledesma, N. Bicanic. Static and dynamic behaviour of soils: A rational approach to quantitative solutions. ii. semi-saturated problems. Proceedings of the Royal Society of London, A(429): 311-321, 1990.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPB1-0009-0059
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