Effect of Compaction Banding on the Hydraulic Properties of Porous Rock: Part I—Experimental Investigation

被引：0
|
作者：
Julia Leuthold
Eleni Gerolymatou
Maximiliano R. Vergara
Theodoros Triantafyllidis
机构：
[1] Karlsruhe Institute for Technology,
[2] Chalmers University of Technology,undefined
[3] Ed. Zueblin AG,undefined
来源：
Rock Mechanics and Rock Engineering | 2021年 / 54卷
关键词：
Compaction band; Rock permeability; Grain crushing; Strain localization; Porous rocks;
D O I：
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学科分类号：
摘要：
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.
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页码：2671 / 2683
页数：12
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