Submit an Article
Become a reviewer
Vol 148 No 1
Pages:
134-138
Download volume:
RUS
Research article
Without section

Stress concentration and scale factor in the fracture of anisotropic rock

Authors:
Yu. M. Lebedkin1
A. S. Matorin2
V. G. Shemenev3
About authors
  • 1 — Institute of Mining of Ural Branch of RAS
  • 2 — Institute of Mining of Ural Branch of RAS
  • 3 — Institute of Mining of Ural Branch of RAS
Date submitted:
2000-06-23
Date accepted:
2000-07-02
Date published:
2001-01-01

Abstract

Fracture of rocks for industrial or other needs (hammering, drilling, extraction of piece rock, processing, etc.) regardless of the method and technology of loading is a local short-term intensive impact, proceeding according to the scheme: load application - deformation - growth of micro- and then macro-damages - growth of cracks - fracture. In this regard, the applied theory of rock failure should not take into account rheology and relaxation, i.e., the model of such failure does not take into account the evolution of micro- and macro-damages in the rock. These phenomena can be accounted for by the ultimate stress or strain in the current state of the fractured rock volume.

Go to volume 148

References

  1. Куклин И.С. Сопротивляемость скальных горных пород разрушению многократными динамическими нагрузками /И.С.Куклин, А.С.Маторин, В.Г.Кузнецов // Буровзрывные работы на рудных карьерах. Свердловск, 1972. (Труды ИГД МЧМ СССР, № 36).
  2. Маторин А. С. Исследование эффективности вторичного дробления горных пород на карьерах сосредоточенными динамическими нагрузками: Автореф. дис канд.техн.наук / ИГД МЧМ СССР. Свердловск, 1970.
  3. Разрушение. Т.1. Микроскопические и макроскопические основы механики разрушения: Пер. с англ. М.: Мир, 1973.
  4. Си и Макдональд В. Применение механики разрушения к инженерным задачам, критерий разрушения - плотность энергии деформации: Пер. с англ. М.: ВЦП науч.-техн. мет. И инф., 1975.

Similar articles

Regularities of formation of zones of fine and radial cracking in the destruction of rocks by explosion of elongated charges
2001 G. M. Kryukov, I. V. Smager, I. I. Drozd
Second stage of wave-free expansion of the cavity of a concentrated explosive charge
2001 N. N. Kazakov
On the use of aluminized high explosive compositions in industrial slurry explosives
2001 I. A. Ovyan
Assessment of rock fracturing using the index of irregular cleavage
2001 K. A. Dolgov
On the stratification of anisotropic interbedded rocks
2001 N. F. Dontsul, G. N. Zhurov, P. K. Tulin
Development of a fractured coal structure under the action of high pressure
2001 T. A. Vasilenko, P. I. Polyakov, T. A. Ryumshina, V. V. Slyusarev