Deformation criterion of salt rock failure

The author offers a new deformation criterion for the compressive strength of salt rock specimens. The limiting principal strain is a function of stress parameter in the form of a ratio of hydrostatic pressure and stress intensity. The safety factor based on the deformation criterion is defined. The...

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Veröffentlicht in:	Journal of mining science 2016-05, Vol.52 (3), p.448-453
1. Verfasser:	Aptukov, V. N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Analysis Carnallite Compression Compressive strength Criteria Deformation Earth and Environmental Science Earth Sciences Geomechanics Geophysics/Geodesy Geotechnical Engineering & Applied Earth Sciences Hydrostatic pressure Mineral Resources Modelling Rocks Safety factors Salts Stability Stability analysis Testing equipment
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Zusammenfassung:	The author offers a new deformation criterion for the compressive strength of salt rock specimens. The limiting principal strain is a function of stress parameter in the form of a ratio of hydrostatic pressure and stress intensity. The safety factor based on the deformation criterion is defined. The numerical modeling of experimental compression of various geometry specimens produces the deformation criterion for sylvinite and carnallite of Upper Kama deposit. The offered criterion is applicable to assessment of salt rock stability.
ISSN:	1062-7391 1573-8736
DOI:	10.1134/S1062739116030645