Fissuring Of Rocks Under Explosive Charges
Author(s)
D. Merabet & D. Mehif
Abstract
The process of the demolition of the rock with explosives is important in managing
the quality of the extracted minerals. Improvement in the fragmentation can be
obtained by variation of the following parameters: the specific consumption of
explosives, the distribution, the inclination of the holes in the rock, the use of
micro delays, the way the charges are built and the understanding of the geological
properties of the massif.
Practical results in the open pit mineral mines show that changes in the charges
lead to a large variation in the fragmentation. This allowed some authors to state
that "all the fragmentation problems are solved vraying the consumption of the
explosives". The authors think that this hypothesis is not true for all kinds of rocks.
The hole diameter influences the explosive's concentra
Keywords
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