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Published in:
2020 | OriginalPaper | Chapter
The Micromechanical Features of Shear Bands in Sandy Soils Subject to Reverse Fault Offsets
Authors : Wen-Chao Huang, Hoang-Khanh Le, Kuo-Yi Chen
Published in: Geotechnics for Sustainable Infrastructure Development
Publisher: Springer Singapore
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In this study, the reverse fault is modeled using Particle Flow Code in Two Dimensions (PFC2D). We have simulated a numerical model based on the sandbox test of a previous study at 80g condition corresponding to the model type maximum vertical displacement of 5 cm of the hanging wall. The simulation results indicate that the stress state of sand particles assembly is strongly affected by some factors such as the lateral force of the fault, the boundary effect, and the development of the shear zone. It is also found that the arrangement of particle assembly plays an essential role in the change of stress state, which becomes complicated during and after the fault offset.