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Vol 166
Pages:
71-73
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Dynamic stresses and mass velocities in the layered roof of cleaning chambers at rock impacts

Authors:
A. G. Protosenya1
Yu. N. Ogorodnikov2
V. V. Karpenko3
About authors
  • 1 — G.V. Plekhanov Saint Petersburg Mining Institute
  • 2 — G.V. Plekhanov Saint Petersburg Mining Institute
  • 3 — G.V. Plekhanov Saint Petersburg Mining Institute
Date submitted:
2005-01-08
Date accepted:
2005-02-20
Date published:
2005-08-01

Abstract

The problem is posed and calculations of stresses and weight coefficients in laminar roof at rock fracture are carried out. The calculations showed that increasing the energy of rock fracture reduces the influence of diffraction processes. The condition of brittle fracture of rock roof under dynamic loading is obtained.

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References

  1. Геомеханика массивов и динамика выработок глубоких рудников / В.Л.Трушко, А.Г.Протосеня, П.Ф.Матвеев‚ Х.М.Совмен; Санкт-Петербургский горный ин-т. СПб, 2000. 396 с.

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