Effect of Compaction Banding on the Hydraulic Properties of Porous Rock: Part I - Experimental Investigation
Journal article, 2021

The mechanical behavior and the influence of compaction banding on the hydraulic properties in soft porous rocks were studied. The tested rock was Calcarenite Tuffeau de Maastricht. In the frame of experimental investigations, triaxial and oedometric tests were conducted under dry and drained conditions. The results demonstrated that the rock is forming discrete compaction bands under high confining stresses and steep angle shear bands under low confining stresses. Permeability measurements during the oedometric and triaxial compression tests under drained conditions demonstrated that the axial permeability decreases with increasing axial strain. The maximum permeability decrease was three orders of magnitude for 40% of axial strain.

Grain crushing

Strain localization

Rock permeability

Compaction band

Porous rocks

Author

Julia Leuthold

Karlsruhe Institute of Technology (KIT)

Eleni Gerolymatou

Chalmers, Architecture and Civil Engineering, GeoEngineering

Maximiliano Vergara

Ed. Zueblin AG

Karlsruhe Institute of Technology (KIT)

Theodoros Triantafyllidis

Karlsruhe Institute of Technology (KIT)

Rock Mechanics and Rock Engineering

0723-2632 (ISSN)

Vol. In Press

Subject Categories

Geotechnical Engineering

Geology

DOI

10.1007/s00603-021-02427-w

More information

Latest update

4/15/2021