Extension of the Liquefaction Strength Concept Under Cyclic Loading to the Modeling of Volcanic Clayey Soils
The concept of liquefaction strength curve, which is often used for description of the possibility for liquefaction of loose sand in practical design, is tried to be applied for the simulation of the cyclic softening behavior of volcanic clayey soils during earthquake. The method of drawing a liquefaction strength curve based on the UW softening model with the total stress formulations is proposed here. The relationships between the input material parameters in the model and the curvilinear shape acquired is clarified. The obtained results can be useful for future development of numerical applications with the elasto-plastic finite element method to the landslide simulations.
KeywordsTriaxial Test Excess Pore Water Pressure Loose Sand Cyclic Triaxial Test Effective Confine Pressure
We really thank Dr. Aly Ahmed (Visiting Scholar from Egypt, Gunma University) who has reviewed this paper as a native English speaker, correcting grammatical mistakes and providing us better ways of expression in English writing.
- Wakai A, Tamura M, Hayashi K, Kamai T, Shimizu N (2007) Simple evaluation method for seismic performance of slightly-inclined residential ground based on surface-wave investigation and dynamic elasto-plastic finite element method. J Appl Mech JSCE 10:581–591 in JapaneseGoogle Scholar
- Akihiko W, Keizo U, Atsuo O, Seiichiro K, Kunihiro H (2010) Numerical modeling of an earthquake-induced landslide considering the strain-softening characteristics at the bedding plane. Soils Found 50(4):515–527Google Scholar
- Wakai A, Kamai T, Ugai K (2005) Finite element simulation of landfill collapse in Takamachi Housing complex, Proceedings of symposium on safeness and performance evaluation of ground for housing, JGS, pp 25–30 in JapaneseGoogle Scholar