Geologic and tectonic characteristics of rockbursts

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The modern mining enterprises have attained such scales of engineering activity that their direct influence to a rock massif and in series of cases to the region seismic regime doesn`t provoke any doubts. Excavation and removal of large volumes of rock mass, industrial explosions and other technological factors during long time can lead to the accumulation of man-made changes in rock massifs capable to cause catastrophic consequences. The stress state changes in considerable domains of massif create dangerous concentration of stresses at large geological heterogeneities - faults localized in the mining works zone. External influence can lead in that case ... continued below

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188 p.

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Adushkin, V.V.; Charlamov, V.A.; Kondratyev, S.V.; Rybnov, Y.S.; Shemyakin, V.M.; Sisov, I.A. et al. June 1, 1995.

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Description

The modern mining enterprises have attained such scales of engineering activity that their direct influence to a rock massif and in series of cases to the region seismic regime doesn`t provoke any doubts. Excavation and removal of large volumes of rock mass, industrial explosions and other technological factors during long time can lead to the accumulation of man-made changes in rock massifs capable to cause catastrophic consequences. The stress state changes in considerable domains of massif create dangerous concentration of stresses at large geological heterogeneities - faults localized in the mining works zone. External influence can lead in that case to such phenomena as tectonic rockbursts and man-made earthquakes. The rockbursts problem in world mining practice exists for more than two hundred years. So that its actuality not only doesn`t decrease but steadily mounts up as due to the mining works depth increase, enlargement of the useful minerals excavations volumes as due to the possibility of safe use of the rock massif potential energy for facilitating the mastering of the bowels of the Earth and for making that more cheap. The purpose of present work is to study the engineering activity influence to processes occurring in the upper part of Earth crust and in particular in a rock massif. The rock massif is treated in those studies as a geophysical medium - such approach takes into account the presence of block structure of medium and the continuous exchange of energy between parts of that structure. The idea ``geophysical medium`` is applied in geophysics sufficiently wide and stresses the difference of actual Earth crust and rock massifs from the continuous media models discussed in mechanics.

Physical Description

188 p.

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OSTI as DE95015967

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  • Other Information: PBD: Jun 1995

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  • Other: DE95015967
  • Report No.: UCRL-CR--121213
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/104474 | External Link
  • Office of Scientific & Technical Information Report Number: 104474
  • Archival Resource Key: ark:/67531/metadc620713

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Office of Scientific & Technical Information Technical Reports

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  • June 1, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Feb. 18, 2016, 5:20 p.m.

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Adushkin, V.V.; Charlamov, V.A.; Kondratyev, S.V.; Rybnov, Y.S.; Shemyakin, V.M.; Sisov, I.A. et al. Geologic and tectonic characteristics of rockbursts, report, June 1, 1995; California. (digital.library.unt.edu/ark:/67531/metadc620713/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.