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Dynamic pore-pressure fluctuations in rapidly shearing granular materials

Science

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Abstract

Results from two types of experiments show that intergranular pore pressures fluctuated dynamically during rapid, steady shear deformation of water-saturated granular materials. During some fluctuations, the pore water locally supported all normal and shear stresses, while grain-contact stresses transiently fell to zero. Fluctuations also propagated outward from the shear zone; this process modifies grain-contact stresses in adjacent areas and potentially instigates shear-zone growth.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Dynamic pore-pressure fluctuations in rapidly shearing granular materials
Series title:
Science
Volume
246
Issue:
4931
Year Published:
1989
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
796
Last page:
799
Number of Pages:
4