Volume 36 Issue 3
Jun.  2022
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Article Navigation >  GEOTECHNICAL ENGINEERING TECHNIQUE  > 2022  >  36(3): 208-213
Li Hongying, Pu Shikun, Tan Yuehu. Stability Analysis of a Landslide in Yalong River[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2022, 36(3): 208-213. doi: 10.3969/j.issn.1007-2993.2022.03.007
Citation: Li Hongying, Pu Shikun, Tan Yuehu. Stability Analysis of a Landslide in Yalong River[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2022, 36(3): 208-213. doi: 10.3969/j.issn.1007-2993.2022.03.007
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Stability Analysis of a Landslide in Yalong River

doi: 10.3969/j.issn.1007-2993.2022.03.007

  • College of Defense Engineering, PLA Army Engineering University, Nanjing 210007, Jiangsu, China

  • Received Date: 2020-06-10
    Available Online: 2022-06-02
  • Publish Date: 2022-06-02
    Abstract
  • In order to provide a reliable basis for landslide risk assessment, the stability of a typical landslide body was calculated and analyzed. Two different methods were used, compared and analyzed, including reliability method and strength reduction method. With the help of GEO-SLOPE software and the method of limit equilibrium theory, the stability of the landslide body was analyzed. The probability of instability of the landslide occurs under two conditions: water storage and heavy rain, water storage and earthquake. The finite element strength reduction method was used to analyze each working condition, and the relationship between seismic intensity and safety coefficient was obtained through software calculation and analysis. With the increase of seismic intensity, the safety coefficient decreases rapidly. It is convenient to calculate through limit equilibrium method but has great limitation. The finite element strength reduction method is based on the elastic-plastic theory, which can directly reflect the deformation, displacement and failure process of the landslide. This method is closer to the actual engineering situation.

     

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