A Multi-Field Coupled Analysis Method for Loess Slopes Considering the Influence of Porosity
By using finite element modeling and an improved strength reduction method, combined with porosity random field and atmospheric boundary conditions, the porosity coupling problem in loess slope stability analysis was solved, improving the accuracy of loess slope stability analysis and the reliability of safety factor calculation.
Patent Information
- Application Number
- CN202411368258.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2044-09-29
AI Technical Summary
Existing technologies fail to effectively couple porosity with shear strength parameters and inherent permeability coefficients, leading to inaccurate stability analysis of loess slopes, especially under hydraulic coupling conditions. Furthermore, the safety factor determination criteria of the strength reduction method are not reliable enough.
Finite element software was used for geometric modeling to establish a constitutive model that considers the influence of porosity. A porosity random field was introduced to characterize the heterogeneity, and the safety factor was calculated by an improved strength reduction method. The slope stability under hydraulic coupling conditions was simulated in combination with atmospheric boundary conditions.
It effectively simulates the influence of heterogeneous porosity on loess slopes, improves the accuracy of slope stability analysis and the reliability of safety factor calculation, and can better predict landslide risks.