Localization of deformation and prognostibility of rock failure

L. B. Zuev, S. A. Barannikova, M. V. Nadezhkin, V. V. Gorbatenko

Research output: Contribution to journalArticle

9 Citations (Scopus)

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 languageEnglish
Pages (from-to)43-49
Number of pages7
JournalJournal of Mining Science
Volume50
Issue number1
DOIs
Publication statusPublished - 2014

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Keywords

  • autowaves
  • Deformation
  • failure
  • localization
  • rocks

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geology

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