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Rainfall thresholds for shallow landsliding derived from pressure-head monitoring : cases with permeable and impermeable bedrocks in Boso Peninsula, Japan

Auteurs :
MATSUSHI, Y.
MATSUKURA, Y.

Description :
Rainfall thresholds for shallow landslide initiation were determined for hillslopes with 2 types of bedrock, permeable sandstone and impermeable mudstone, in the Boso Peninsula. Detailed field and laboratory investigations were designed to ascertain the physical properties of the hillslope materials relevant to slope stability analysis, and to understand the responses of subsurface pressure heads to rainfall. A multiple regression analysis was used to determine the critical rainfall level for landsliding, depending on the amount of rainfall and slope instability caused by elevated pressure heads.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2007, vol. 32, n°. 9, p. 1308-1322, nombre de pages : 15, Collation : Illustration, Références bibliographiques : 27 ref.

Date :
2007

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais
Droits :
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