›› 2008, Vol. 29 ›› Issue (2): 501-506.

• Geotechnical Engineering • Previous Articles     Next Articles

Transient stability analysis of dishuiya landslide No.1 under rainfall condition

YIN Xiao-tao1、2, RAN Chang-guo3, WANG Shui-lin1   

  1. 1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. State Key Laboratory of Frozen Soil Engineering, Institute of Cold and Arid Regions Environment and Engineering, Chinese Academy of Sciences, Lanzhou 730000, China; 3. China Communications Second Survey Design and Research Institute, Wuhan 430056, China
  • Received:2007-07-05 Online:2008-02-11 Published:2013-07-10

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Abstract: Utilizing seepage coupled slope surface runoff theory, the seepage field of Dishuiya Landslide No.1 affected by the infiltrating process of rainfall is simulated according to the monitoring daily rainfall data in May. Based on generalized limit equilibrium method ( abbreviated. GLE), the safety factor of the landslide is computed by means of unsaturated soil strength theory, respectively utilizing strength parameters under raw or saturated conditions. Simultaneously, its stability is evaluated, which offers a reference for transient stability analysis. Then, transient stability of the landslide is calculated and analyzed by means of calling seepage and runoff results at different rainfall step. Moreover, the time and space effect of the landslide’s stability caused by rainfall infiltrating into the slope body is explored. Meanwhile, soil hydraulic property and slope surface runoff affected by rainfall are presented.

Key words: landslide, rainfall, seepage, transient stability

CLC Number: 

  • TU 443
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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