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Sensitivity and Correlation Analysis of Influencing Factors of Landslide Speed

Excerpt

Based on influencing factors of landslide speed, three parameters, respectively, groundwater height coefficient, reduced rate of friction angle and reduced rate of cohesion, are selected as sub-sequences and the corresponding maximal speed of landslide as primary-sequences of the sensitivity and correlation analysis. Secant model is employed to analyze the sensitivity of influencing factors. This model regards initiation and derivative as transforming method of basic data, and sensitive degrees as estimating indexes of sensitive factors. Grey correlation model is used to analyze correlativity of influencing factors. This model takes top-difference for transforming method of basic data, and correlative degrees as estimating indexes of influencing factors. Both models take Xintan landslide as an example. It is concluded that the reduced rate of friction angle is the most sensitive influencing factor and the reduced rate of cohesion is the most correlative influencing factor.

  • Abstract
  • Introduction
  • Establishment of Secant Model
  • Establishment of Grey Correlation Model
  • Sensitivity and Correlation Analysis of Xintan Landslide Speed
  • Conclusions
  • Acknowledgments
  • References

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