Dynamic Pore-Pressure Fluctuations in Rapidly Shearing Granular Materials
- 10 November 1989
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 246 (4931), 796-799
- https://doi.org/10.1126/science.246.4931.796
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.Keywords
This publication has 8 references indexed in Scilit:
- Viscosity, granular‐temperature, and stress calculations for shearing assemblies of inelastic, frictional disksJournal of Rheology, 1986
- Groundwater Seepage Vectors and the Potential for Hillslope Failure and Debris Flow MobilizationWater Resources Research, 1986
- High‐Speed Motion Pictures of Nearly Steady, Uniform, Two‐Dimensional, Inertial Flows of Granular MaterialJournal of Rheology, 1986
- A sliding–consolidation model for flow slidesCanadian Geotechnical Journal, 1986
- Effects of dilatant hardening on the development of concentrated shear deformation in fissured rock massesJournal of Geophysical Research, 1984
- Acoustic fluidization: A new geologic process?Journal of Geophysical Research, 1979
- An Experimental Study of the Kinematics of Flow Through HoppersTransactions of the Society of Rheology, 1974
- Theory of Propagation of Elastic Waves in a Fluid-Saturated Porous Solid. I. Low-Frequency RangeThe Journal of the Acoustical Society of America, 1956