Geo-Congress 2020
Full and Quasi-Stochastic Slope Stability Analyses Using Random Limit Equilibrium Method (RLEM)
Publication: Geo-Congress 2020: Engineering, Monitoring, and Management of Geotechnical Infrastructure (GSP 316)
ABSTRACT
Natural alluvial deposits exhibit variability in strength and stiffness parameters which results in uncertainty in the response of geotechnical structures such as slopes. Random limit equilibrium method (RLEM) offers a conceptually simple, versatile, and efficient approach for the evaluation of the stability conditions of heterogeneous slopes. Limit equilibrium methods (LEM) using non-circular slip geometries have proven more accurate than circular slip geometries in profiling the failure status of heterogeneous slopes by passing through the weak points more effectively. Findings of the current study support the non-circular RLEM approach over the conventional circular slice-based formulations. It is also shown that adopting a very simple and computationally efficient quasi-stochastic RLEM approach, which is based on the block search method, will render fairly accurate predictions of the stability conditions of nonhomogeneous slopes in comparison to the inaccurate 1D approach. Furthermore, it is shown that considering correlation in the shear strength parameters is very important when evaluating the stability of heterogeneous slopes.
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Information & Authors
Information
Published In
Geo-Congress 2020: Engineering, Monitoring, and Management of Geotechnical Infrastructure (GSP 316)
Pages: 667 - 676
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): 978-0-7844-8279-7
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Feb 21, 2020
Published in print: Feb 21, 2020
ASCE Technical Topics:
- Analysis (by type)
- Chemical properties
- Chemistry
- Design (by type)
- Disaster risk management
- Engineering fundamentals
- Engineering mechanics
- Environmental engineering
- Equilibrium
- Geomechanics
- Geometrics
- Geotechnical engineering
- Heterogeneity
- Highway and road design
- Limit analysis
- Limit equilibrium
- Material mechanics
- Material properties
- Materials engineering
- Mathematics
- Parameters (statistics)
- Risk management
- Shear strength
- Slope stability
- Slopes
- Statics (mechanics)
- Statistics
- Strength of materials
Authors
Metrics & Citations
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