Models of the Grain and Rock Mass Fabrics

  • Walter Wittke


The various types of rock are described in this chapter according to their geological prig-in. Characteristic examples of igneous, sedimentary and metamorphic rocks are discussed with the objective of combining these rocks into groups suitable for the formulation of relationships describing stress-strain and permeability behaviour. A series of conceptual models is developed from a description of the various naturally occurring grain and discontinuity fabrics. The models enable actual rock mass conditions to be described with sufficient accuracy in many cases and therefore provide a basis for the formulation of rock mechanics models suitable for use in engineering practice. Questions relating to petrology, natural bedding conditions and tectonics are only entered into so far as it appears necessary for the handling of rock mechanics problems.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • Walter Wittke
    • 1
  1. 1.Institut für Grundbau, Bodenmechanik, Felsmechanik und VerkehrswasserbauRWTH AachenAachenGermany

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