sawtooth blasting

sawtooth blasting

[′sȯ‚tüth ′blast·iŋ]
(mining engineering)
The cutting of a series of slabs which, in plan, resemble sawteeth by blasting oblique, horizontal holes along a face.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.