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Environmental Earth Sciences

, 59:1267 | Cite as

Dynamic features and effects of rainfall on landslides in the Three Gorges Reservoir region, China: using the Xintan landslide and the large Huangya landslide as the examples

  • He KeqiangEmail author
  • Wang Shangqing
  • Du Wen
  • Wang Sijing
Original Article

Abstract

The study area is located in Three Gorges Reservoir region, China. Over 200 landslides have been monitored over a number of years with their behavior being compared to the effective rainfall database for the study area. Analysis of the available data indicates that the occurrences of landslides in this region are controlled by rainfall, whose intensity and rainfall processes are the most important dynamic factors in determining the stability of slopes. Therefore, the relationship between rainfall and the movement of typical landslides has been specifically analyzed for the Xintan landslides and the large Huangya landslide by using the loading/unloading response ratio parameter of rainfall. The result of this study indicates that the mutation of the loading/unloading response ratio of rainfall of the Xintan landslide and the large Huangya landslide in the Three Gorges Reservoir region, China occurred just before their destabilization, which shows that the loading/unloading response ratio of rainfall and its changing feature can be taken as a precursor for the landslides induced by rainfall.

Keywords

Landslide Rainfall Dynamic feature The Three Gorges Reservoir region China 

Notes

Acknowledgments

The study was supported by National Natural Science Foundation of China (40672182, 40872184) and Key Laboratory of Geological Hazards on Three Gorges Reservoir Area (China Three Gorges University), Ministry of Education. The authors would like to offer great thanks to Prof. Zhang Xiangong, and Prof. Li Tiehan, China University of Geosciences, Beijing, for supplying the practical monitoring data of the Xintan slope. Postgraduates Li Jing, Wang Ronglu, Guo Dong and Feng Lipo have done a great deal of significant work on the monitoring and data-analysis for this study.

Supplementary material

12665_2009_114_MOESM1_ESM.doc (501 kb)
Supplementary material 1 (DOC 501 KB)

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • He Keqiang
    • 1
    Email author
  • Wang Shangqing
    • 2
  • Du Wen
    • 1
  • Wang Sijing
    • 3
  1. 1.Department of Civil EngineeringQingdao Technological UniversityQingdaoPeople’s Republic of China
  2. 2.Department of Civil EngineeringChina Three Gorges UniversityYichangPeople’s Republic of China
  3. 3.Institute of Geology and GeophysicsChinese Academy of SciencesBeijingChina

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