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Hydro-mechanical Behaviour of Unsaturated Argillaceous Rocks

  • Bernardo CaicedoEmail author
  • Jairo Martin Espitia
  • Luis Vallejo
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)

Abstract

The paper studies the hydromechanical behaviour of an argillaceous rock from the Colombian Andes. The influence of total suction on some physical/mechanical properties is analyzed on an argillaceous rock from the Colombian Andes. A wetting path was applied to the rocks using the vapor transfer technique. Uniaxial compression tests were conducted on specimens at different levels of suction. Also, microstructural observations are carried out using a Mercury Intrusion Porosimeter Apparatus. Results from the laboratory tests indicate that anisotropic deformations took place during the wetting path. Also, total suction contributed to a considerable and non-linear reduction in the peak compressive stress, elastic modulus and stress thresholds of the tested samples. Microstructural analysis indicated the influence of suction on the dominant pores.

Keywords

Acoustic Emission Peak Stress Volumetric Strain Hydric State Rock Block 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Bernardo Caicedo
    • 1
    Email author
  • Jairo Martin Espitia
    • 1
    • 2
  • Luis Vallejo
    • 3
  1. 1.Department of Civil EngineeringUniversidad de Los AndesBogotáColombia
  2. 2.Mining Engineering DepartmentUPTCSogamosoColombia
  3. 3.Department of Civil and Environmental EngineeringUniversity of PittsburghPittsburghUSA

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