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Applied Physics and Mathematics

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RESEARCH CAPABILITIES OF PERIMETER CONTROL ACTION EXPLOSION IN ORE BREAKING IN A CLAMP
YU.P. GALCHENKO

The paper discusses the technological capabilities of the
control zakomornogo and blasting impact of the explosion
at the ore vein deposits. Performed analysis of allocation
and distribution of energy explosion in the conditions of
the clip and found that the main prospects for the control
of quality indicators in the conditions associated with the
parameters of the impulse of the explosion. Each specifi c
conditions corresponds to a optimum energy pulse, which is
characterized by the fact that the stresses arising in the array,
not only surpass in magnitude destructive, but is maintained
at this level for a time suffi cient to complete the process of
crack formation. The real voltage pulse is suffi cient to provide
the required performance crushing, if theoretically optimal
pulse fi ts in it completely. This means that control over the
magnitude of the unwanted eff ects of the explosion in the
form of overgrinding of ore and intensive zakomornogo
destruction array of host rocks can be performed by
controlling the size of the head part of the impulse of the
explosion and its duration. Experimental studies have fully
confi rmed the theoretical fi ndings and helped to create a
system of empirical dependencies, which formed the basis of
the methodology of calculation of parameters of drilling and
blasting operations, providing the possibility of technological
control values zakomornogo impact of the explosion and the
output is not sorted ore fi nes, as the main sources of excessive
losses and dilution of saleable ore.
Keywords: vein deposits, ore blasting, explosive, energy distribution,
control, rate control, quality indicators, laboratory and
fi eld experiment, patterns, technique, reduction, loss, ore.

Contacts: E-mail: schtrek33@mail.ru

Pp. 62-68.

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