Permeability in flysch — Distribution decrease with depth and grout curtains under dams

  • Vassilis Marinos
  • Petros Fortsakis
  • George Prountzopoulos
  • Paul MarinosEmail author


A considerable number of in situ permeability tests in flysch are processed to a depth of 120m with a good spatial distribution. The distribution of permeability values for the different litho-types of this formation, their comparison and their decrease with depth is discussed. The depth where a permeability of 3 to 5×10−7m/sec can be retained (the limit of a reasonable grouting under a high dam) may be twofold if the geological history of the formation could not contain a compressional tectonic process. This depth may reach 100m in some cases. The differences in the mean values of permeability among the various litho-types are minor, while the presence of siltstones, always present although with varied participation, dramatically controls the global permeability.


Permeability Flysch Dams Grout curtain Distribution with depth 


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Copyright information

© Science Press, Institute of Mountain Hazards and Environment, CAS and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Vassilis Marinos
    • 1
  • Petros Fortsakis
    • 2
  • George Prountzopoulos
    • 2
  • Paul Marinos
    • 2
    Email author
  1. 1.School of GeologyAristotle University of ThessalonikiThessalonikiGreece
  2. 2.School of Civil Engineering, Department of Geotechnical EngineeringNational Technical University of AthensZografou, AthensGreece

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