Topic
Mudflow
About: Mudflow is a research topic. Over the lifetime, 625 publications have been published within this topic receiving 16954 citations. The topic is also known as: mud flow & mudslide.
Papers published on a yearly basis
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Papers
TL;DR: In this paper, a new division of landslide materials is proposed, based on genetic and morphological aspects rather than arbitrary grain-size limits, which would allow the terms to be retained with their original meanings while making their application less ambiguous.
Abstract: As a result of the widespread use of the landslide classifications of Varnes (1978), and Hutchinson (1988), certain terms describing common types of flow-like mass movements have become entrenched in the language of engineering geology. Example terms include debris flow, debris avalanche and mudslide. Here, more precise definitions of the terms are proposed, which would allow the terms to be retained with their original meanings while making their application less ambiguous. A new division of landslide materials is proposed, based on genetic and morphological aspects rather than arbitrary grain-size limits. The basic material groups include sorted materials: gravel, sand, silt, and clay, unsorted materials: debris, earth and mud, peat and rock. Definitions are proposed for relatively slow non-liquefied sand or gravel flows, extremely rapid sand, silt or debris flow slides accompanied by liquefaction, clay flow slides involving extra-sensitive clays, peat flows, slow to rapid earth flows in nonsensitive plastic clays, debris flows which occur in steep established channels or gullies, mud flows considered as cohesive debris flows, debris floods involving massive sediment transport at limited discharges, debris avalanches which occur on open hill slopes and rock avalanches formed by large scale failures of bedrock.
1,159 citations
TL;DR: In this article, a review emphasizes models in which debris behavior evolves in response to changing pore pressures and granular temperatures, and quantifies how pore pressure and temperature can influence the behavior of debris flows.
Abstract: ▪ Abstract Field observations, laboratory experiments, and theoretical analyses indicate that landslides mobilize to form debris flows by three processes: (a) widespread Coulomb failure within a sloping soil, rock, or sediment mass, (b) partial or complete liquefaction of the mass by high pore-fluid pressures, and (c) conversion of landslide translational energy to internal vibrational energy (i.e. granular temperature). These processes can operate independently, but in many circumstances they appear to operate simultaneously and synergistically. Early work on debris-flow mobilization described a similar interplay of processes but relied on mechanical models in which debris behavior was assumed to be fixed and governed by a Bingham or Bagnold rheology. In contrast, this review emphasizes models in which debris behavior evolves in response to changing pore pressures and granular temperatures. One-dimensional infinite-slope models provide insight by quantifying how pore pressures and granular temperatures c...
935 citations
Book•
1 Mar 2005
TL;DR: In this article, the authors classified debris flows in history as hyperconcentrated flow, subaqueous and volcanic debris flows, as well as a transition process between water flow and debris flow.
Abstract: Classification and terminology- Debris flows in history- Instability of steep slopes- Mechanism of landslide-triggered debris flows: Liquefaction phenomena due to the undrained loading of torrent deposits- Debris-flow mechanics- Entrainment of material by debris flows- Hyperconcentrated flow - transitional process between water flow and debris flow- Subaqueous debris flows- Volcanic debris flows- Application of airborne and spaceborne remote sensing methods- Debris-flow instrumentation- Runout prediction methods- Climatic factors influencing occurrence of debris flows- Wildfire-related debris flow from a hazards perspective- Influence of forest harvesting activities on debris avalanches and flows- Debris-flow hazard analysis- Debris-flow mitigation measures- Debris avalanches and debris flows of the Campania Region (southern Italy)- Debris flows of December 1999 in Venezuela- Debris flows caused by Typhoon Herb in Taiwan- Jiangjia Ravine debris flows in south-western China- Debris flows and debris avalanches in Clayoquot Sound- Analysis and management of debris-flow risks at Sorenberg (Switzerland)- Engineering for debris flows in New Zealand- Multifaceted hazard assessment of Cheekye fan, a large debris-flow fan in south-western British Columbia- Debris flows at Mount St Helens, Washington, USA
889 citations
TL;DR: FLO•2D as mentioned in this paper is a two-dimensional finite difference model that simulates clear-water flood hazards, mudflows, and debris flows on alluvial fans and urban floodplains.
Abstract: FLO‐2D is a two‐dimensional finite difference model that simulates clear‐water flood hazards, mudflows, and debris flows on alluvial fans and urban floodplains. Interactive flood or mudflow routing between channel, street, and floodplain flow is performed using a uniform grid system to describe complex floodplain topography. A quadratic rheological model, developed from field and laboratory mudflow data, enables appropriate simulations of flooding conditions ranging from clear water to hyperconcentrated sediment flows. Computer‐aided design (CAD) graphics of predicted time‐sequenced flood depths automates the delineation of flood hazards. Replication of the 1983 Rudd Creek mudflow in Utah demonstrates the capability of the model.
810 citations
1 Jan 1984
TL;DR: In 1970, a debris avalanche triggered by an earthquake, completely destroyed the city of Yungay, Peru, killing an estimated 17,000 people and burying the whole city under 5 m of mud and debris.
Abstract: Debris flows claim hundreds of lives and cause millions of dollars of property damage throughout the world each year. In Japan alone, an average 90 lives are lost annually from debris flows (Takahashi 1981). In 1970 a debris avalanche (a rapidly moving form of debris flow) triggered by an earthquake, completely destroyed the city of Yungay, Peru, killing an estimated 17,000 people and burying the whole city under 5 m of mud and debris (Plafker and Erickson 1978). Some countries with chronic losses from debris flows include Japan (Okuda et al. 1980); United States (Committee on Methodologies for Predicting Mudflow Areas, 1982; Scott 1972; Cummans 1981; Scott 1971; Flaccus 1958; Williams and Guy 1973; Woolley 1946; Morton and Campbell 1974); Indonesia (Scrivenor 1929); Tanzania (Temple and Rapp 1972); Scandinavia (Rapp and Stromquist 1976); Costa Rica (Waldron 1967); China (Li and Luo 1981; Chinese Society of Hydraulic Engineering 1980); Brazil (Jones 1973); Ireland (Prior et al. 1968); Romania (Balteanu 1976); India (Starkel 1972); Bangladesh (Wasson 1978); New Zealand (Selby 1967; Pierson 1980a, b); and the Soviet Union (Gol’din and Lyubashevskiy 1966; Niyazov and Degovets 1975; Gagoshidze 1969).
687 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 28 |
| 2024 | 42 |
| 2023 | 69 |
| 2022 | 80 |
| 2021 | 20 |
| 2020 | 25 |