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Study of stability of large landslide considering fluid solid coupling

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Abstract

China is a country with frequent landslide disasters, especially in Western China. Chongqing Wulong County Yangjiao landslide is taken as the engineering background. Three-dimensional elastic constitutive model is used to calculate the soil aggregate landslide’s overall stability and landslide stability analysis of deformation and failure process disintegration. Combined with engineering practice of gravel soils under the action of rainfall of the landslide collapse deformation failure process analysis, the main failure mechanism of landslide deformation is revealed under the action of rainfall. Combined with the geographical position of the landslide and the effects of the earthquake, the coupling model of the earthquake and rainfall is established. The stability of the landslide in the earthquake and strong rainfall is analyzed. The results show that the landslide deformation and failure are affected more significantly by the slope morphology, and the landslide has a significant amplification effect of seismic waves.

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Authors and Affiliations

  1. Department of Physics and Mathematics, Shandong Jiaotong University, Jinan, 250023, China

    Shang-yang Yang

  2. Geotechnical & Structural Engineering Research Center, Shandong University, Jinan, 250061, China

    Shang-yang Yang, Shu-cai Li, Yi-guo Xue & Qian-qing Zhang

Authors
  1. Shang-yang Yang
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  2. Shu-cai Li
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  3. Yi-guo Xue
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  4. Qian-qing Zhang
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Corresponding author

Correspondence to Shang-yang Yang.

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Highlights

•Elastic constitutive model or elasto-plastic constitutive model are popularly used by many researchers; however, fluid solid coupling model is rarely used. The coupling model of the earthquake and rainfall is established.

•Hydrodynamics and hydrodynamics are mixed into one model.

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Yang, Sy., Li, Sc., Xue, Yg. et al. Study of stability of large landslide considering fluid solid coupling. Arab J Geosci 9, 35 (2016). https://doi.org/10.1007/s12517-015-2113-z

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  • DOI: https://doi.org/10.1007/s12517-015-2113-z

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