Search Results - "Iverson, Richard"

Scaling and design of landslide and debris-flow experiments by Iverson, Richard M.

“…Scaling plays a crucial role in designing experiments aimed at understanding the behavior of landslides, debris flows, and other geomorphic phenomena involving…”
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Elementary theory of bed-sediment entrainment by debris flows and avalanches by Iverson, Richard M.

“…Analyses of mass and momentum exchange between a debris flow or avalanche and an underlying sediment layer aid interpretations and predictions of bed‐sediment…”
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Entrainment of bed material by Earth-surface mass flows: Review and reformulation of depth-integrated theory by Iverson, Richard M., Ouyang, Chaojun

“…Earth‐surface mass flows such as debris flows, rock avalanches, and dam‐break floods can grow greatly in size and destructive potential by entraining bed…”
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The perfect debris flow? Aggregated results from 28 large-scale experiments by Iverson, Richard M., Logan, Matthew, LaHusen, Richard G., Berti, Matteo

“…Aggregation of data collected in 28 controlled experiments reveals reproducible debris‐flow behavior that provides a clear target for model tests. In each…”
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Discussion of “Oso, Washington, Landslide of March 22, 2014: Dynamic Analysis” by Jordan Aaron, Oldrich Hungr, Timothy D. Stark, and Ahmed K. Baghdady by Iverson, Richard M

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Discussion of “Case Study: Oso, Washington, Landslide of March 22, 2014—Material Properties and Failure Mechanism” by Timothy D. Stark, Ahmed K. Baghdady, Oldrich Hungr, and Jordan Aaron by Iverson, Richard M

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Positive feedback and momentum growth during debris-flow entrainment of wet bed sediment by Godt, Jonathan W, Iverson, Richard M, Logan, Matthew, Griswold, Julia P, Reid, Mark E, LaHusen, Richard G

“…Debris flows typically occur when intense rainfall or snowmelt triggers landslides or extensive erosion on steep, debris-mantled slopes. The flows can then…”
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Debris flows: behaviour and hazard assessment by Iverson, Richard M.

“…Debris flows are water‐laden masses of soil and fragmented rock that rush down mountainsides, funnel into stream channels, entrain objects in their paths, and…”
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Discussion of “Shallow Water Hydro-Sediment-Morphodynamic Equations for Fluvial Processes” by Zhixian Cao, Chunchen Xia, Gareth Pender, and Qingquan Liu by Iverson, Richard M

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Regulation of landslide motion by dilatancy and pore pressure feedback by Iverson, Richard M.

“…A new mathematical model clarifies how diverse styles and rates of landslide motion can result from regulation of Coulomb friction by dilation or contraction…”
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Controls on the breach geometry and flood hydrograph during overtopping of noncohesive earthen dams by Walder, Joseph S., Iverson, Richard M., Godt, Jonathan W., Logan, Matthew, Solovitz, Stephen A.

“…Overtopping failure of noncohesive earthen dams was investigated in 13 large‐scale experiments with dams built of compacted, damp, fine‐grained sand. Breaching…”
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Debris flow runup on vertical barriers and adverse slopes by Iverson, Richard M., George, David L., Logan, Matthew

“…Runup of debris flows against obstacles in their paths is a complex process that involves profound flow deceleration and redirection. We investigate the…”
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Flow of variably fluidized granular masses across three-dimensional terrain: 1. Coulomb mixture theory by Iverson, Richard M., Denlinger, Roger P.

“…Rock avalanches, debris flows, and related phenomena consist of grain‐fluid mixtures that move across three‐dimensional terrain. In all these phenomena the…”
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The physics of debris flows by Iverson, Richard M.

“…Recent advances in theory and experimentation motivate a thorough reassessment of the physics of debris flows. Analyses of flows of dry, granular solids and…”
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Comment on “The reduction of friction in long‐runout landslides as an emergent phenomenon” by Brandon C. Johnson et al by Iverson, Richard M.

“…Results from a highly idealized, 2‐D computational model indicate that dynamic normal‐stress rarefactions might cause friction reduction in long‐runout…”
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Flow of variably fluidized granular masses across three-dimensional terrain: 2. Numerical predictions and experimental tests by Denlinger, Roger P., Iverson, Richard M.

“…Numerical solutions of the equations describing flow of variably fluidized Coulomb mixtures predict key features of dry granular avalanches and water‐saturated…”
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Measuring Basal Force Fluctuations of Debris Flows Using Seismic Recordings and Empirical Green's Functions by Allstadt, Kate E., Farin, Maxime, Iverson, Richard M., Obryk, Maciej K., Kean, Jason W., Tsai, Victor C., Rapstine, Thomas D., Logan, Matthew

“…We present a novel method for measuring the fluctuating basal normal and shear stresses of debris flows by using along‐channel seismic recordings. Our method…”
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Dynamics of seismogenic volcanic extrusion at Mount St Helens in 2004-05 by Gardner, Cynthia A, Qamar, Anthony I, Major, Jon J, Schilling, Steven P, Vallance, James W, Messerich, James A, Lisowski, Michael, LaHusen, Richard G, Iverson, Richard M, Malone, Stephen D, Pallister, John S, Dzurisin, Daniel, Moran, Seth C, Gerlach, Terrence M

“…The 2004-05 eruption of Mount St Helens exhibited sustained, near-equilibrium behaviour characterized by relatively steady extrusion of a solid dacite plug and…”
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Basal Stress Equations for Granular Debris Masses on Smooth or Discretized Slopes by Iverson, Richard M., George, David L.

“…Knowledge of basal stresses is essential for analyzing slope stability and modeling the dynamics and erosive potential of debris flows and avalanches. Here we…”
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Effects of soil aggregates on debris-flow mobilization: Results from ring-shear experiments by Iverson, Neal R., Mann, Janet E., Iverson, Richard M.

“…Rates and styles of landslide motion are sensitive to pore-water pressure changes caused by changes in soil porosity accompanying shear deformation. Soil may…”
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