Analysis of rainfall-induced landslide on unsaturated soil slopes

Sangseom Jeong, Kwangwoo Lee, Junghwan Kim, Yongmin Kim

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

This paper investigates rainfall-induced landslides on partially saturated soil slopes using the 2011 Umyeonsan landslides at the center of Seoul, Korea. An integrated analysis of rainfall-induced landslide was carried out through laboratory tests, field tests, and numerical analysis. The results of comprehensive investigations in the Umyeonsan region demonstrate that landslide activity is closely related primarily to rainfall and soil properties and slope geometry, and vegetation. Numerical analysis was also performed to confirm the effect of these factors on landslide occurrence. Special attention was given to rainfall penetration analysis to determine the wetting band depth for shallow and deep-seated slope failure in watershed-scale landslide. The simulated results agree closely with the investigation results, which indicates that the applied method is appropriate for use in the simulation of landslides in unsaturated soils.

Original languageEnglish
Article number1280
JournalSustainability (Switzerland)
Volume9
Issue number7
DOIs
Publication statusPublished - 2017 Jul 21

All Science Journal Classification (ASJC) codes

  • Geography, Planning and Development
  • Renewable Energy, Sustainability and the Environment
  • Management, Monitoring, Policy and Law

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