The Mohr–Coulomb criterion for intact rock strength and friction – a  re-evaluation and consideration of failure under polyaxial stresses

Hackston, Abigail; Rutter, Ernest

doi:https://doi.org/10.5194/se-7-493-2016

Articles | Volume 7, issue 2

Solid Earth, 7, 493–508, 2016

https://doi.org/10.5194/se-7-493-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: From orogenesis to geoscience in the service of society: the...

Solid Earth, 7, 493–508, 2016

https://doi.org/10.5194/se-7-493-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 7, issue 2

Research article 01 Apr 2016

Research article | 01 Apr 2016

The Mohr–Coulomb criterion for intact rock strength and friction – a re-evaluation and consideration of failure under polyaxial stresses

Abigail Hackston and Ernest Rutter

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Final revised paper (published on 01 Apr 2016)
Preprint (discussion started on 18 Dec 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C1917: 'Review of The Mohr-Coulomb criterion for intact rock strength and friction ...Hackston and Rutter', Thomas Blenkinsop, 01 Feb 2016
- AC C1978: 'Authors’ response to Blenkinsop review', Ernest H. Rutter, 15 Feb 2016
RC C1984: 'Interactive comment - referee', Albert Griera, 23 Feb 2016
- AC C1989: 'Authors' response to Griera review', Ernest H. Rutter, 04 Mar 2016

Short summary

This was an experimental study of the strength of two rock types, over a range of pressure conditions that correspond to depths in the Earth’s crust ranging up to 12 km. Tests were carried out under different stress regimes to simulate extremes of the range of loading geometries encountered in the Earth and hence how these affect failure strength and resistance to frictional slip on faults. These experiments will promote understanding of rock behaviour in oil, gas and water reservoirs.