Environmental Temperature Effect on Hydraulic Behavior and Stability of Shallow Slopes

Shu Rong Yang, Rui En Chang, Ya Sin Yang, Hsin Fu Yeh

Research output: Contribution to journalArticlepeer-review


This study established a study framework to quantify the safety factors of unsaturated shallow slopes at different temperatures. This study is based on a non-isothermal soil water characteristic curve model quantifying the temperature-dependent hydraulic properties of soils. The hydraulic coupling analysis models HYDRUS 2D and The Slope Cube Module were used for finite element modeling. A slope stability analysis was performed based on the local factor of safety (LFS) theory. An increased temperature decreased the soil matric suction, suction stress, effective stress, and LFS, weakening the soil strength. Slope modeling analysis showed that soils were dominated by different water retention mechanisms before and after rainfall infiltration, and the trends caused by temperature changes also changed accordingly. This study provides insights into the relationship between soil mechanical properties and temperature, which is valuable for maintaining soil stability and preventing geological hazards.

Original languageEnglish
Article number134
JournalEnvironments - MDPI
Issue number8
Publication statusPublished - 2023 Aug

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Renewable Energy, Sustainability and the Environment
  • General Environmental Science


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