Download Landslide Hazard and Risk by Thomas Glade, Malcolm G. Anderson, Michael J. Crozier PDF
By Thomas Glade, Malcolm G. Anderson, Michael J. Crozier
With the expanding have to take an holistic view of landslide chance and threat, this ebook overviews the concept that of chance examine and addresses the sociological and mental matters as a result of landslides. Its built-in method bargains realizing and skill for involved agencies, landowners, land managers, insurance firms and researchers to increase hazard administration strategies. worldwide case reports illustrate various built-in ways, and a concluding part presents standards and contexts for the following new release of strategy versions.
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Extra resources for Landslide Hazard and Risk
Sample text
Crozier) Moore and McInnes (2002) demonstrate the close links not only between marine erosion, landsliding, cliff and coastline movements (both seaward and landward), but also the relationship between landsliding and the supply of beach sediment. 12). Careful reading of the ground can indicate the stress history of the slope. Evidence of past erosion may indicate the presence of overconsolidated material, indications of former movement can reveal that material strength has been reduced below its original peak strength, while fault evidence may point to the presence of crushed and myolinite zones.
Climate records), the triggering agent record is much longer and more reliable than the record of actual landslide occurrence. Despite the stability status of a given slope or catchment, a trigger (usually extrinsic) is needed to initiate the movement. In nature, these triggers can be identified as: rainfall, earthquakes, volcanic eruptions, or the undercutting of slopes by fluvial, coastal or weathering processes. Human-induced triggers may include explosions, slope cutting, slope loading (with buildings, material or water) or drainage systems that lead to a change of soil moisture regime.
G. , 1993). , 1998). Inherent in all of these methods is their empirical, somewhat ‘black-box’ approach, leading to some uncertainty as to which stress conditions are actually critical in the triggering process (Chowdhury and Flentje, 2002). g. Bommer and Rodriguez, 2002). Wilson and Keefer (1985) suggested a method to predict spatial limits of earthquake-induced landslides, based on earthquake magnitude and intensity. More recently, Jibson and Keefer (1993) investigated earthquakes and related thresholds for the Madrid region, while the Northridge earthquake in 1994, which triggered numerous landslides, has been studied by Harp and Jibson (1995).