Authors : L. Khochman and A.E. Hadjadj
Abstract: 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.
L. Khochman and A.E. Hadjadj , 2006. New Methodology Selection of Drilling Machines. Asian Journal of Information Technology, 5: 1310-1312.