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Application of Damage Mechanics to Deep Tunnels

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Application of Numerical Methods to Geotechnical Problems

Part of the book series: International Centre for Mechanical Sciences ((CISM,volume 397))

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Abstract

The paper utilizes an anisotropic nonlinear damage model in strain space to describe the behavior of jointed rock and applies it to mechanical analysis of tunneling. This work focuses on rate-independent and small-deformation behavior during static isothermal processes. The prime results include: (1) the properties of damage-dependent elasticity tensors based on geological information of the jointed rock mass; (2) the damage evolution law presented on the basis of thermodynamics and combined with the endochronic theory; (3) the symmetric form of the effective stress concept which held between the elasticity tensor of the damaged material and that of the fictitious undamaged material; and (4) the global damage tensor based on the work-equivalence principle and the local geological data of multi-joint sets. Finally the numerical results of a tunnel intersection in jointed rock is presented to illustrate the mechanical behavior of this model.

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Author information

Authors and Affiliations

  1. University of Innsbruck, Innsbruck, Austria

    G. Swoboda

  2. Minia University, Minia, Egypt

    M. Zaki

Authors
  1. G. Swoboda
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  2. M. Zaki
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Editor information

Editors and Affiliations

  1. Technical University (Politecnico), Milano, Italy

    Annamaria Cividini

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© 1998 Springer-Verlag Wien

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Swoboda, G., Zaki, M. (1998). Application of Damage Mechanics to Deep Tunnels. In: Cividini, A. (eds) Application of Numerical Methods to Geotechnical Problems. International Centre for Mechanical Sciences, vol 397. Springer, Vienna. https://doi.org/10.1007/978-3-7091-2512-0_37

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  • DOI: https://doi.org/10.1007/978-3-7091-2512-0_37

  • Publisher Name: Springer, Vienna

  • Print ISBN: 978-3-211-83141-0

  • Online ISBN: 978-3-7091-2512-0

  • eBook Packages: Springer Book Archive

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