Dynamic pore-pressure fluctuations in rapidly shearing granular materials
January 1, 1989
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.
Citation Information
Publication Year | 1989 |
---|---|
Title | Dynamic pore-pressure fluctuations in rapidly shearing granular materials |
DOI | 10.1126/science.246.4931.796 |
Authors | Richard M. Iverson, Richard G. Lahusen |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Science |
Index ID | 70178058 |
Record Source | USGS Publications Warehouse |
USGS Organization | Volcano Hazards Program |