TY  - JOUR
T1  - New Methodology Selection of Drilling Machines
AU - , L. Khochman AU - , A.E. Hadjadj 
JO  - Asian Journal of Information Technology
VL  - 5
IS  - 12
SP  - 1310
EP  - 1312
PY  - 2006
DA  - 2001/08/19
SN  - 1682-3915
DO  - ajit.2006.1310.1312
UR  - https://makhillpublications.co/view-article.php?doi=ajit.2006.1310.1312
KW  - Drilling machines
KW  -model
KW  -cost
KW  -selection
AB  - Of necessity, the first unit operation conducted during the exploitation phase in surface miming is production drilling. The purpose of production drilling is to provide the cavity for placement of the explosives. So far, no alternative to blasting has been devised for fragmentation very resistant rock in-situ, although some forms of excavation are suitable without prior blasting for softer rock. Actually, different type of drilling machines can be available in the field. This study will present some actual measurements illustrating the variations of drilling parameters and proposes a practical method for an optimum selection. There is a great deal of overlap between the drilling machines available and, in order to confine this work to a reasonable length, it is proposed to consider only which are most widely used by mining engineers.
ER  -