Geo-Congress 2020
Stability Analysis of Jointed Rock Slope Using Finite Element Method (FEM) with the Random-Joints Generation Model
Publication: Geo-Congress 2020: Modeling, Geomaterials, and Site Characterization (GSP 317)
ABSTRACT
In this study, the stability of jointed rock slope was evaluated using the finite element method (FEM) with the random-joints generation 2D model. The in-house model to simulate joints randomly generated in the rock was developed based on the Monte Carlo method and a normal probability distribution that can be obtained in the field investigation. The model was employed into COMSOL Multiphysics through a subroutine program written by MATLAB. As for the mechanical parameters of joints, the S-type weakening curve equation was used so that each joint has individual mechanical parameters. Compared to a conventional model to simulate the joints, the developed model can simulate the physical characteristics of the jointed rock slope, which reflects the control function of joints in the stability of the rock slope closed to the field. To validate the model, the failure case of jointed rock slope in the field was compared to one predicted by this random joint model. The results were in good agreement with deformation characteristics of the slope observed in the field.
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Information & Authors
Information
Published In
Geo-Congress 2020: Modeling, Geomaterials, and Site Characterization (GSP 317)
Pages: 501 - 509
Editors: James P. Hambleton, Ph.D., Northwestern University, Roman Makhnenko, Ph.D., University of Illinois at Urbana-Champaign, and Aaron S. Budge, Ph.D., Minnesota State University, Mankato
ISBN (Online): 978-0-7844-8280-3
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Feb 21, 2020
ASCE Technical Topics:
- Analysis (by type)
- Engineering fundamentals
- Field tests
- Finite element method
- Geology
- Geomechanics
- Geotechnical engineering
- Joints
- Methodology (by type)
- Models (by type)
- Numerical methods
- Rocks
- Simulation models
- Slope stability
- Slopes
- Structural engineering
- Structural members
- Structural systems
- Tests (by type)
- Two-dimensional analysis
- Two-dimensional models
Authors
Metrics & Citations
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