Simulation of Multiple Region System

  • Baotang Shen
  • Ove Stephansson
  • Mikael Rinne


Rock mass may have different properties in different regions of its structure. An example is a shaft where three different regions (concrete lining, Excavation Disturbed Zone (EDZ), and in situ rock mass) must be considered.

For application in this case, FRACOD needs to simulate the multiple regions with different material properties. Because FRACOD is a boundary element code based on the mathematical solutions in an elastic, homogeneous, isotropic medium, it is not a trivial task to extend FRACOD to handle multiple region problems. New approaches must be found. This chapter presents the mathematical formulations and their implementation in FRACOD for multiple region problems.


Rock Mass Interface Element Multiple Region Displacement Discontinuity Internal Point 
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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Baotang Shen
    • 1
  • Ove Stephansson
    • 2
  • Mikael Rinne
    • 3
  1. 1.CSIRO Earth Science and Resource EngineeringBrisbaneAustralia
  2. 2.Helmholtz Centre Potsdam GFZ German Research Centre for GeosciencesPotsdamGermany
  3. 3.School of Engineering Department of Civil and Environmental Engineering, GeoengineeringAalto UniversityEspooFinland

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