Proceedings of the
8th International Symposium on Geotechnical Safety and Risk (ISGSR)
14 – 16 December 2022, Newcastle, Australia
Editors: Jinsong Huang, D.V. Griffiths, Shui-Hua Jiang, Anna Giacomini, Richard Kelly
doi:10.3850/978-981-18-5182-7_17-006-cd
Evaluation of Deformation Behavior of a Natural Slope Using Particle Filter
Graduate School of Environmental and Life Science, Okayama University, 3-1-1 Tsushima-Naka, Kita-ku, Okayama 700-8530, Japan.
ABSTRACT
This paper shows an evaluation method for landslide behavior using an elasto-viscoplastic finite element (FE) analysis and the particle filter (PF). As the elasto-viscoplastic constitutive model, the Mohr-Coulomb yield criterion with the over-stress model is adopted, and landslide displacements are simulated. The geotechnical parameters related to the creep behavior of a landslide are identified with the PF in this research. The results of the FE analysis using the identified parameters agree well with the observed data, and it is confirmed that the methodology presented in this study can be effective in the evaluation of landslides. In addition, countermeasures for landslides are discussed based on the predicted displacements; and consequently, the possibility of the proposed method's practical use is verified for the mitigation of landslide hazards.
Keywords: Landslides, Displacement prediction, Elasto-viscoplastic analysis, Particle filter
