Submit an Article
Become a reviewer
Vol 185
Pages:
41-45
Download volume:
RUS

Determination of indices of strength certificate оf rocks using the method of specimens failure with spherical indentors

Authors:
V. A. Korshunov1
Yu. M. Kartashov2
V. A. Kozlov3
About authors
  • 1 — Ph.D. Senior research assistant Saint Petersburg State Mining Institute (Technical University)
  • 2 — Ph.D., Dr.Sci. Chief Research assistant Saint Petersburg State Mining Institute (Technical University)
  • 3 — Senior research assistant Saint Petersburg State Mining Institute (Technical University)
Date submitted:
2009-07-24
Date accepted:
2009-09-16
Date published:
2010-01-01

Abstract

The method has been developed for the determination of indices of strength certificate of rocks using the technique of specimen’s failure with oncoming spherical indentors. This method is based on the assessment of ultimate stresses acting in the tensile plane and within the zones of failured rocks under action of indentors at the moment of sample splitting. Formulas were obtained for calculation of indices of strength certificate, i.e. cohesion and angles of internal friction under tensile compression and nonuniform triaxial compression, ultimate strength in uniaxial compression and tension. This method is applicable in situ conditions.

Keywords:
rocks strength certificate cohesion angle of internal friction spherical indentors
Go to volume 185

References

  1. Методика определения прочности горных пород на образцах полуправильной формы / А.И.Берон, М.И.Койфман, С.Е.Чирков, И.А.Соломина / Институт горного дела им.А.А.Скочинского. М., 1976. 40 с.
  2. Коршунов В.А. Определение показателей объемной прочности горных пород при их нагружении сферическими инденторами // Горная геомеханика и маркшейдерское дело: Сборник научных трудов / ВНИМИ. СПб, 1999. С.70-75.
  3. Прочность и деформируемость горных пород / Ю.М.Карташов, Б.В.Матвеев, Г.В.Михеев, А.Б.Фадеев. М.: Недра, 1979. 269 с.
  4. Bieniawski Z.T. The point-load strength test in geotechnical practice. Engineering Geology. 9 (1975). Р.1-11.

Similar articles

Active methods for control of geomechanical state of rock mass in coal deposit mining under complicated geological-and-mining conditions
2010 F. N. Voskoboev, Yu. A. Semenov, V. A. Zvezdkin
State examination of mineral reserves in the system of wise utilization of the earth’s interior
2010 Yu. A. Podturkin
The determination of the volume stress-strain conditions of the rock massive with the circular outline mining ensrined with the anchors
2010 A. G. Protosenya, N. A. Belyakov
Improved light-weight support types in mine workings
2010 V. A. Smirnov, A. E. Khlusov, B. N. Samorodov
Application of geodynamic polygons for monitoring of ground deformations while exploitation of gas and oil fields
2010 V. Ya. Lobazov, A. F. Kisurkin, A. P. Petrov, O. N. Staroverov
Results of repeated geodetic observations аt the Мukhanovsk technogenic geodynamic polygon
2010 A. G. Grunin, I. M. Zalyalov, O. D. Ivanchik, Yu. O. Kuzmin