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Research on shear-slip characteristics with different-size rectangular zigzag gouge by double-direct tests

Author

Listed:
  • Yang Liu
  • Cai-Ping Lu
  • Tong-bin Zhao

Abstract

We designed and manufactured several types of simulated faults with different-size rectangular zigzag gouges, and sheared them by traditional double-direct shear tests. Simultaneously, the shear force and corresponding acoustic emissions were recorded during shear-slip of rectangular zigzag gouge, and the variations of shear force and acoustic emission energy characteristics related to shear-slip events were analyzed. Especially, the relationship between shear-slip characteristics and zigzag length and width was also revealed. In addition, the significant differences of slip characteristic parameters between shear-slip of an intact zigzag and friction and sliding on rough plane of a sheared zigzag were summarized, and it might be used to judge the different stages of a fault slip with zigzag gouge. In conclusion, this work may reveal the characteristics of shear-slip and friction under conditions of different-size rectangular zigzag gouges of simulated fault and thus provide valuable insights into precursors of earthquake.

Suggested Citation

  • Yang Liu & Cai-Ping Lu & Tong-bin Zhao, 2017. "Research on shear-slip characteristics with different-size rectangular zigzag gouge by double-direct tests," International Journal of Distributed Sensor Networks, , vol. 13(4), pages 15501477177, April.
    • Handle: RePEc:sae:intdis:v:13:y:2017:i:4:p:1550147717702896
    DOI: 10.1177/1550147717702896
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