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Source mechanisms of seismic events induced at Ziemowit coal mine: comparison with mining information : P. Wiejacz, Publications - Institute of Geophysics, Polish Academy of Sciences, series, M, M-19(281), 1995, pp 15–32

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
175 KB
Volume
33
Category
Article
ISSN
0148-9062

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Accurate execution of any blast involves accurate blasthole drilling. In order to get proper blasting results, it is important that the bottom of the holes be at the proper location and that the drill enters the ground at the proper angle. It is also important to have the proper dimensions on the su