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June 1, 2026International Journal of Mining Science and TechnologyOpen Access

An experimental investigation into fluid injection-induced fault slip and fracturing under true triaxial stress

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Authors

LWL WangWCWu CaiWCWenzhuo Cao

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Overview

Experimental investigation reveals the impact of fluid injection on fault dynamics, indicating significant implications for rock stability.

Key Points

  • The aim is to understand how fluid injection influences fault slip and fracturing under true triaxial stress conditions.
  • Fluid injection experiments conducted with monitoring of stress and displacement,
  • Acoustic emission analysis and spectral inversion applied to assess fault dynamics,
  • CT scanning used to visualize changes in rock structure during injection.
  • Three distinct stages of fault slip identified: injection disturbance, hydraulic fracturing, and pore pressure buildup.
  • Pore pressure increases lead to fluctuating slip velocities during fluid injection.
  • Reactivation of faults occurs before hydraulic fracturing in hard rocks, while the opposite holds true for soft rocks.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a1d22db02fbce9130638833https://doi.org/10.1016/j.ijmst.2026.05.006
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