Localization of deformation and prognostibility of rock failure

Abstract

The general regular patterns in localization of deformation at pre-failure stage in rocks under compression are found and analyzed (sylvinite, marble sandstone). Applicability of speckle-photography methods to problems on rock deformation and failure is proved. The authors define the self-sustained behavior of the localized plastic deformation in rocks under compression, due to effect of various plastic micromechanisms. The autowaves in rock specimens under compression propagate at a rate of ∼10^-5-10^-4 m/s (0.3-3 km/yr), which is close to slow motions induced in the earth crust by an earthquake or a rockburst. The ratio of the experimental and calculated failure times is correlated with the coordinates of the failure points in the test rock specimens.

Original language	English
Pages (from-to)	43-49
Number of pages	7
Journal	Journal of Mining Science
Volume	50
Issue number	1
DOIs	https://doi.org/10.1134/S1062739114010074
Publication status	Published - 2014

Keywords

autowaves
Deformation
failure
localization
rocks

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Geology

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10.1134/S1062739114010074

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title = "Localization of deformation and prognostibility of rock failure",

abstract = "The general regular patterns in localization of deformation at pre-failure stage in rocks under compression are found and analyzed (sylvinite, marble sandstone). Applicability of speckle-photography methods to problems on rock deformation and failure is proved. The authors define the self-sustained behavior of the localized plastic deformation in rocks under compression, due to effect of various plastic micromechanisms. The autowaves in rock specimens under compression propagate at a rate of ∼10-5-10-4 m/s (0.3-3 km/yr), which is close to slow motions induced in the earth crust by an earthquake or a rockburst. The ratio of the experimental and calculated failure times is correlated with the coordinates of the failure points in the test rock specimens.",

keywords = "autowaves, Deformation, failure, localization, rocks",

author = "Zuev, {L. B.} and Barannikova, {S. A.} and Nadezhkin, {M. V.} and Gorbatenko, {V. V.}",

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T1 - Localization of deformation and prognostibility of rock failure

AU - Zuev, L. B.

AU - Barannikova, S. A.

AU - Nadezhkin, M. V.

AU - Gorbatenko, V. V.

PY - 2014

Y1 - 2014

N2 - The general regular patterns in localization of deformation at pre-failure stage in rocks under compression are found and analyzed (sylvinite, marble sandstone). Applicability of speckle-photography methods to problems on rock deformation and failure is proved. The authors define the self-sustained behavior of the localized plastic deformation in rocks under compression, due to effect of various plastic micromechanisms. The autowaves in rock specimens under compression propagate at a rate of ∼10-5-10-4 m/s (0.3-3 km/yr), which is close to slow motions induced in the earth crust by an earthquake or a rockburst. The ratio of the experimental and calculated failure times is correlated with the coordinates of the failure points in the test rock specimens.

AB - The general regular patterns in localization of deformation at pre-failure stage in rocks under compression are found and analyzed (sylvinite, marble sandstone). Applicability of speckle-photography methods to problems on rock deformation and failure is proved. The authors define the self-sustained behavior of the localized plastic deformation in rocks under compression, due to effect of various plastic micromechanisms. The autowaves in rock specimens under compression propagate at a rate of ∼10-5-10-4 m/s (0.3-3 km/yr), which is close to slow motions induced in the earth crust by an earthquake or a rockburst. The ratio of the experimental and calculated failure times is correlated with the coordinates of the failure points in the test rock specimens.

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KW - Deformation

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KW - localization

KW - rocks

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