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Journal of Mountain Science

, Volume 8, Issue 4, pp 544–550 | Cite as

Analysis of landslide dam geometries

  • Yu-Shu KuoEmail author
  • Yun-Chung Tsang
  • Kun-Ting Chen
  • Chjeng-Lun Shieh
Article

Abstract

The geometry of a landslide dam is an important component of evaluating dam stability. However, the geometry of a natural dam commonly cannot be obtained immediately with field investigations due to their remote locations. A rapid evaluation model is presented to estimate the geometries of natural dams based on the slope of the stream, volume of landslides, and the properties of the deposit. The proposed model uses high resolution satellite images to determine the geometry of the landside dam. These satellite images are the basic information to a preliminary stability analysis of a natural dam. This study applies the proposed method to two case studies in Taiwan. One is the earthquake-induced Lung-Chung landslide dam in Taitung, and the second is the rainfall-induced Shih-Wun landslide dam in Pingtung.

Keywords

Landslide dam Geometries Stability 

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Copyright information

© Science Press, Institute of Mountain Hazards and Environment, CAS and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Yu-Shu Kuo
    • 1
    Email author
  • Yun-Chung Tsang
    • 1
  • Kun-Ting Chen
    • 1
  • Chjeng-Lun Shieh
    • 1
  1. 1.Department of Hydraulic and Ocean EngineeringNational Cheng-Kung UniversityChinese TaipeiChina

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