Submit an Article
Become a reviewer
Vol 190
Pages:
202
Download volume:

A new technique for the determination of ultimate strength in extention of rocks

Authors:
V. A. Korshunov1
Yu. M. Kartashov2
About authors
  • 1 — Saint Petersburg State Mining Institute (Technical University)
  • 2 — Saint Petersburg State Mining Institute (Technical University)
Date submitted:
2010-08-24
Date accepted:
2010-10-25
Date published:
2011-02-01

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.

Go to volume 190

References

  1. 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.
  2. 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.
  3. 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

Connection between lumpiness and block size оf mined rock from photographs using computer processing research
2011 A. P. Sannikova
Development of tecnological shemes of the selective extraction of the complex potash seams under conditions of the starobin deposit
2011 O. V. Kovalev, E. R. Kovalskii, Yu. G. Sirenko, I. Yu. Tkhorikov
Influence of a condition of a regional zone of a layer on the mechanism of occurrence of explosions of methane on collieries
2011 S. A. Tolstunov
Technology of «cold» briquetting of rich ores of the Jakovlevsky deposit
2011 V. L. Trushko, R. E. Dashko, V. B. Kuskov, A. S. Klyamko
Dynamics of rock pressure manifestation in mining the flat-lying coal seams with heavy roofs
2011 S. G. Baranov, D. S. Vlasenko, M. A. Loginov
Calculation moving and deformations used functions of typical curves, analytically expressed
2011 E. S. Rozhnov