Abstract
In the present study, a strain-softening constitutive model for sensitive clays originating from weathered pumice is applied to simulate an earthquake-induced catastrophic landslide that occurred during the 2011 Great Tohoku and Kanto Earthquake in Japan. The upper part of the slope sliding about 200 m and 13 people were killed. The failure could be related to shear strength degradation of the sensitive clay layers in the slope during the earthquake.
The strain-softening characteristics of the sensitive material in the slope have been investigated in a series of laboratory tests involving undisturbed samples. The observed stress-displacement relationships under cyclic loading are numerically modelled using a proposed elasto-plastic constitutive model, based on the dynamic finite element method. The observed phenomena are appropriately simulated by the proposed model.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Wakai A, Ugai K (2004) A simple constitutive model for the seismic analysis of slopes and its applications. Soils Found 44(4):83–97
Wakai A, Ugai K, Onoue A, Kuroda S, Higuchi K (2010) Numerical modeling of an earthquake-induced landslide considering the strain-softening characteristics at the bedding plane. Soil Found 50(4):515–527
Acknowledgments
The authors would like to thank Prof. Takehiko Suzuki, Tokyo Metropolitan University, for his great help in the identification of volcanic tephra in the study area.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer International Publishing Switzerland
About this paper
Cite this paper
Wakai, A., Cai, F., Ugai, K., Soda, T. (2014). Finite Element Simulation for an Earthquake-Induced Catastrophic Landslide Considering Strain-Softening Characteristics of Sensitive Clays. In: Sassa, K., Canuti, P., Yin, Y. (eds) Landslide Science for a Safer Geoenvironment. Springer, Cham. https://doi.org/10.1007/978-3-319-05050-8_43
Download citation
DOI: https://doi.org/10.1007/978-3-319-05050-8_43
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-05049-2
Online ISBN: 978-3-319-05050-8
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)