Effect of Compaction Banding on the Hydraulic Properties of Porous Rock: Part I - Experimental Investigation
Artikel i vetenskaplig tidskrift, 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

Författare

Julia Leuthold

Karlsruher Institut für Technologie (KIT)

Eleni Gerolymatou

Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik

Maximiliano Vergara

Ed. Zueblin AG

Karlsruher Institut für Technologie (KIT)

Theodoros Triantafyllidis

Karlsruher Institut für Technologie (KIT)

Rock Mechanics and Rock Engineering

0723-2632 (ISSN)

Vol. In Press

Ämneskategorier

Geoteknik

Geologi

DOI

10.1007/s00603-021-02427-w

Mer information

Senast uppdaterat

2021-04-15