Buffer Blasting

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Buffer Blasting

 

a method of explosive breaking, in which the blast acts on the surface of a massif, confined by a buffer of previously fragmented rock. The uncleared-away rock mass of the previous explosion (a so-called blast in a confined environment) most often serves as the buffer. In working underground, rock is also used—either rock that falls down from the sides of the mining site or rock brought in as filling material. Buffer blasting works to limit the width of rock destruction and improves the breaking of the rock. Buffer blasting is used in quarries and underground mines.

REFERENCES

Fugzan, M. D. Opyt odnostadiinoi razrabotki moshchnykh rudnykh mestrozhdenii s massovoi otboikoi. Moscow, 1964.
Vzryvanie v zazhatoi srede na kar’erakh. Kiev, 1966.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.