A new technique for the determination of ultimate strength in extention of rocks
About authors
- 1 — Saint Petersburg State Mining Institute (Technical University)
- 2 — Saint Petersburg State Mining Institute (Technical University)
Abstract
A new technique has been developed for the determination of ultimate strength in uniaxial extension by testing results of samples of arbitrary shape. This technique consists in the sample failure with spherical indentors and measuring of sizes of rupture surfaces and zones of failured rocks at contacts with indentors for the subsequent estimation of ultimate stress state. The revised formulas were obtained for calculation of ultimate strength in uniaxial extension with using the method of sample failure with spherical indentors, essentially improving the accuracy of the technique.
Область исследования:
(Archived) Geomechanics
Similar articles
The forecasting of stress condition in the «pillar-working» system in combined action of rock bump and geostatic pressure
2011 V. V. Karpenko, Yu. N. Ogorodnikov
Foundation of Cholodninskoye deposit mining systems in conditions of ecological risks
2011 V. P. Zubov, O. V. Mikhailenko, A. A. Antonov, M. D. Morozov
Aspects of coal strata mining at the mine of the elegest deposit (the republic of Tyva)
2011 Yu. V. Gromov, D. N. Demekhin