Debris flow : phenomenology and rheological modelling

著者

書誌事項

Debris flow : phenomenology and rheological modelling

by G. Lorenzini and N. Mazza

WIT, c2004

  • : hard

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注記

Bibliography: p. [181]-186

Includes index

内容説明・目次

内容説明

Debris flows are among the most frequent and destructive of all geomorphic processes, mainly affecting mountainous areas in a range of morphoclimatic environments, and the damage they cause is often devastating. Increased anthropisation calls for improvements in the criteria used to identify debris-flow risk areas and the prevention measures adopted. One of the main difficulties encountered by the approaches illustrated in previous literature is linked to their possible validation either in the field or in a laboratory environment. The choice of a rheological model is extremely important. This book provides methodological details, which can be applied to investigations on debris-flow mechanics, capable of providing an accurate representation of the phenomenology.

目次

  • Chapter 1: Debris flows: an intermediate phenomenon between mass wasting and solid transport Introduction
  • Mass wasting
  • Solid transport within a streamflow
  • Observations Chapter 2: The rheology of hyperconcentrated flows Introduction
  • Hyperconcentrated flow classification
  • he rheological aspects of debris flows Chapter 3: Debris-flow phenomenology Introduction
  • Typical debris-flow environments
  • Debris-flow characteristics
  • Salient aspects of debris-flow phenomenology
  • Energy in a debris flow
  • Debris-flow propagation
  • The problem of saturation in debris flows Chapter 4: The state of the art of modelling debris-flow triggering and mobilisation Mechanisms Introduction
  • Debris-flow triggering and mobilisation mechanisms
  • Models on the mechanics of debris-flow triggering
  • Conclusions Chapter 5: The state of the art of modelling debris-flow dynamics of motion Introduction
  • Dynamics of debris flows
  • General nature of the problem
  • Models on the dynamics of debris flows in uniform motion
  • Conclusions Chapter 6: Debris-flow modelling: a general outline of the motion problem Introduction
  • Debris-flow as fluid-mechanical phenomenon
  • General outline of the problem
  • Balance equations in uniform motion
  • Stress analysis
  • Dimensionless formulation of the motion-field equations
  • A debris-flow classification based on dimensional analysis Chapter 7: Debris-flow disaster mitigation Introduction
  • Nonstructural measures
  • Structural measures
  • Development prospects Chapter 8: Concluding remarks Summary
  • Considerations on the mechanics of solid-liquid flows
  • Hypotheses for future progress

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