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Environmental Earth Sciences

, 78:632 | Cite as

Influence of atmospheric temperature on shallow slope stability

  • Gang Liu
  • Fuguo TongEmail author
  • Bin Tian
  • Wenjing Tian
Original Article
  • 115 Downloads

Abstract

The occurrence of landslide has correlations with the atmospheric temperature change. Assessing the influence of changes in atmospheric temperature on landslides is helpful for the landslide treatment. This study simulates rainfall infiltration in a homogeneous soil slope under varying atmospheric temperatures based on water–air two–phase flow theory and the heat transfer equation. The safety factor of a slide slip is calculated using the residual thrust method under different atmospheric temperatures. The results show that changes in atmospheric temperature affect the seepage field of a slope, possibly affecting the slope stability. Under the same initial and rainfall conditions, the higher the atmospheric temperature is, the higher the rainfall infiltration rate; the deeper the infiltration depth is, the higher the air pressure in the slope and the lower the slope safety factor. Numerical simulations show apparent correlations between atmospheric temperature changes and the safety factor of a slope. Thus, the higher the atmospheric temperature is, the lower the safety factor of a slope. Under certain conditions, changes in atmospheric temperature may trigger landslides.

Keywords

Shallow slope stability Atmospheric temperature Water–air two-phase flow Heat transfer 

Notes

Acknowledgements

This research was sponsored by The National Key Research and Development Program of China (2017YFC1501100), Research Fund for Excellent Dissertation of China Three Gorges University (Grant no. 2019BSPY001) and the National Natural Science Foundation of China (Grant nos. 51279090, 51939004). The authors are also deeply grateful to anonymous reviewers and editors for their useful comments and suggestions.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.College of Hydraulic and Environment EngineeringChina Three Gorges UniversityYichangChina

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