The physics of debris flows

@article{Iverson1997ThePO,
  title={The physics of debris flows},
  author={Richard M. Iverson},
  journal={Reviews of Geophysics},
  year={1997},
  volume={35},
  pages={245 - 296}
}
  • R. Iverson
  • Published 1 August 1997
  • Geology
  • Reviews of Geophysics
Recent advances in theory and experimentation motivate a thorough reassessment of the physics of debris flows. Analyses of flows of dry, granular solids and solid‐fluid mixtures provide a foundation for a comprehensive debris flow theory, and experiments provide data that reveal the strengths and limitations of theoretical models. Both debris flow materials and dry granular materials can sustain shear stresses while remaining static; both can deform in a slow, tranquil mode characterized by… 
Study of pore fluid effect on the mobility of granular debris flows
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Substantial research work has been focusing on the flow resistance of dense granular-fluid geophysical flows, e.g., debris flows. However, the mechanism of flow resistance as the dense debris flows
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Measurements of pore-fluid pressure and total bed-normal stress at the base of several ~10 m 3 experimental debris flows provide new insight into the process of debris-flow deposition. Pore-fluid
A two-phase debris-flow model that includes coupled evolution of volume fractions, granular dilatancy, and pore-fluid pressure
Pore-fluid pressure plays a crucial role in debris flows because it counteracts normal stresses at grain contacts and thereby reduces intergranular friction. Pore-pressure feedback accompanying
Depositional mechanisms and morphology of debris flow: physical modelling
A comprehensive understanding of the deposition mechanisms and morphology of debris flows is necessary to delineate the extent of a debris flow hazard. However, due to the wide range of debris flow
Process of Occurrence, Flow and Deposition of Viscous Debris Flow
Debris flow generally contains particles whose size distributes in a very wide range, and the fine fraction of them is usually incorporated in the interstitial water to behave as a kind of fluid.
Fluid-particle interaction in geophysical flows: debris flow
Small scale laboratory experiments were conducted to study the dynamic mor- phology and rheological behaviour of fluid-particle mixtures, such as snout-body architecture, levee formation, deposition
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