Precursory electrical resistivity signatures of shear failure in saturated sandstone under varying shear rates
Peng Jia, Dunxiu Zhang, Cao Liu, Binyu Sun, Zeng Zeng · 2025
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Description
Peng Jia and four co-authors watched the electrical resistivity of rock change as a crack grows, to warn of shear breaks, in a study published in 2025. Sound pops are the standard warning sign, but they can go quiet just before a break. The team sheared wet sandstone at mixed speeds while they logged both sound pops and electrical resistivity, with a camera on the surface strain.
The break ran in four stages, and resistivity tracked each one: a wobble, a steady fall, a sharp drop, then flat. At fast shear the sound pops dimmed and went quiet in the late stage. Resistivity kept falling through that quiet period, a clear lead sign. Damage scores built from each stream agreed on the break path. The authors present resistivity logs as a partner to sound monitoring.
Catalog record
| CREATOR | Peng Jia, Dunxiu Zhang, Cao Liu, Binyu Sun, Zeng Zeng |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 45 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |