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Vol 52 Iss. 1
Pages:
75-80
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RUS
Article

Stability of outcrops in blocks reaching the surface

Authors:
N. Z. Galaev
Yu. P. Golovin
Date submitted:
1965-07-05
Date accepted:
1965-09-26
Date published:
1966-07-26

Abstract

At Apatit mines, as a rule, the upper part of ore deposits is exposed to the day surface. During the underground development of blocks of upper horizons is often observed self-collapse of the massif, freezing of the beaten ore, scattering of its explosion. This leads to large losses of ore ...

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References

  1. Fisenko G. L. Stability of the sides of coal pits. Uglegletehizdat, 1956.
  2. Fisenko G. L. Stability of sides of open pits and dumps. Nedra, 1965.

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