The Micromechanical Features of Shear Bands in Sandy Soils Subject to Reverse Fault Offsets

Wen Chao Huang, Hoang Khanh Le, Kuo Yi Chen

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationLecture Notes in Civil Engineering
PublisherSpringer
Pages1259-1265
Number of pages7
DOIs
StatePublished - 2020

Publication series

NameLecture Notes in Civil Engineering
Volume62
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Keywords

  • Maximum principal stress direction
  • PFC2D
  • Porosity
  • Reverse fault
  • Stress path

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