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.
References
- Гончаров И.Г. Прочность каменных материалов в условиях различных напряженных состояний. Л.-М.: Государственное изд-во литературы по строительству, архитектуре и строительным материалам, 1960. 124 с.
- Коршунов В.А. Определение показателей объемной прочности образцов горных пород при их нагружении сферическими инденторами / В.А.Коршунов, Ю.М.Карташов // Труды Международной конференции. Геотехника. Оценка состояния оснований и сооружений / ВНИИГ. Том 1. СПб, 2001. С.33-41.
- Suggested methods for determining tensile strength of rock materials. Part 2: Suggested method for determining indirect tensile strength by the Brazil test // Int. J. Rock Mech. Min. Sci. and Geotech. Abstr. Vol.15. Pergamon Press Ltd. 1978. Р.99-103.
Similar articles
Metal pliable support developmentsin an ore file Yakovlevsky mine
2011 V. I. Ochkurov, Yu. N. Ogorodnikov, Yu. N. Antonov
Geodinamical variability as a cause of natural disasters and technogenic catastrophes
2011 L. K. Gorshkov, Z. B. Dekusar
Gamma fields dynamic dosage perfomances possibilities for diagnostics and control of radiation and nuclear accidents on nuclear power underground facilities group
2011 V. G. Kondratev
Account of influence of fracturing of stony and semistony rocks on the strength of rock mass in evaluation of stability of open-pit slopes by prospecting data
2011 A. M. Mochalov, S. V. Kagermazova, G. A. Grebenshchikova