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Probabilistic investigation of RFEM topologies for slope stability analysis
journal contribution
posted on 2023-05-20, 07:30 authored by Ashley DysonAshley Dyson, Ali TolooiyanAli TolooiyanThe Random Finite Element Method (RFEM) is an increasingly popular tool in geotechnical engineering, especially for analysis of spatial variation and uncertainty in slope stability. Although the method has gained prominence in recent years, topological effects of strong and weak zones and the impact of their locations remain largely unknown. Although numerous potential slip surface realisations can be generated with RFEM, probabilistic failure statistics are often governed by several representative slip surfaces (RSS). In this research, random field similarity methods and clustering techniques are coupled with RFEM slope stability simulation to determine the impact of shear strength spatial patterns on slope failure mechanisms and safety factors. Regions of significance are highlighted within a case study of a Victorian open-cutbrown coal mine, with particular attention given to the effects on the slope failure surface as well the factor of safety. Results are presented of Factor of Safety distributions when particular slip surfaces and clustering constraints are imposed, providing further understanding of the impacts of shear strength characteristics on probabilistic simulation results.
History
Publication title
Computers and GeotechnicsVolume
114Article number
103129Number
103129Pagination
1-15ISSN
0266-352XDepartment/School
School of EngineeringPublisher
ElsevierPlace of publication
Oxford, EnglandRights statement
Copyright 2019 Elsevier Ltd.Repository Status
- Restricted