Seepage and stability analysis of fractured soil slope considering permeability anisotropy.
Chunli Zhang1,2, Mengdi Qin3, Long Hong3
1School of Intelligent Construction and Civil Engineering, Zhongyuan University of Technology, Zhengzhou, 451191, China. chunli168@163.com.
Scientific Reports
|April 1, 2025
View abstract on PubMed
Summary
This study shows that soil
Area of Science:
- Geotechnical Engineering
- Hydrogeology
- Soil Mechanics
Background:
- Slope fractures are critical to slope failure during rainfall.
- The impact of soil permeability anisotropy on fractured slopes is understudied.
- Understanding these factors is vital for slope stability analysis.
Purpose of the Study:
- To investigate how anisotropic soil permeability and fractures affect slope seepage and stability under rainfall.
- To quantify the influence of varying anisotropic permeability ratios on slope behavior.
Main Methods:
- Numerical simulation using Geo-studio software.
- Application of saturated-unsaturated seepage theory.
- Finite element analysis of fractured soil slopes with varying anisotropy.
Main Results:
- Fractures significantly influence shallow slope seepage but have minimal impact on deep layers.
- Anisotropic soil permeability substantially affects seepage fields, safety factors, and fracture behavior.
- Rainfall exacerbates these effects on slope stability.
Conclusions:
- Anisotropic permeability is a key factor in fractured slope stability under rainfall.
- Findings offer crucial insights for slope engineering in anisotropic soil conditions.
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