Spatio-temporal estimation of shallow landslide hazard triggered by rainfall using a three-dimensional model

Cheng Qiu, Tetsuro Esaki, Mowen Xie, Yasuhiro Mitani, Chunxiang Wang

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

A shallow landslide triggered by rainfall can be forecast in real-time by modeling the relationship between rainfall infiltration and decrease of slope stability. This paper describes a promising approach that combines an improved three-dimensional slope stability model with an approximate method based on the Green and Ampt model, to estimate the time-space distribution of shallow landslide hazards. Once a forecast of rainfall intensity and slope stability-related data, e.g., terrain and geology data, are acquired, this approach is shown to have the ability to estimate the variation of slope stability of a wide natural area during rainfall and to identify the location of potential failure surfaces. The effectiveness of the estimation procedures described has been tested by comparison with a one-dimensional method and by application to a landslide-prone area in Japan.

Original languageEnglish
Pages (from-to)1569-1579
Number of pages11
JournalEnvironmental Geology
Volume52
Issue number8
DOIs
Publication statusPublished - Aug 1 2007

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Water Science and Technology
  • Environmental Science(all)
  • Earth and Planetary Sciences (miscellaneous)

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