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DRILL & BLAST


CLEARNINGURVE T


he pace of technological change means that education is more important than ever. Colorado School of Mines, located in the


foothills of the Rocky Mountains, has nearly 6,000 students and a diverse range of research interests, including materials and additive manufacturing as well as its core mining activities. Jamal Rostami, associate professor,


Timothy J. Haddon/Alacer Gold Chair in Mining Engineering and director of the Excavation Engineering and Earth Mechanics Institute (EMI), states that, “Drills are becoming more intelligent and in addition to self-diagnostic systems on many of the new sensors installed on the units, they can optimise the drilling operation by controlling the thrust, torque and feed rate of the drill bit. Many


8 www.engineerlive.com Jamal Rostami


Jon Lawson reports on how technological advances in blasting are being taught to the next generation of engineers


of the surface drilling units are now equipped with GPS and can locate the drilling spot and know how deep they have to drill. “Te underground units work in tandem with total stations from surveying systems or laser guidance and can position the holes in the desired pattern which is communicated to them via wireless system or by simply plugging a jump drive. Tere are drills on the market that can assess rock strength and jointing in the rock and develop a 3D map of the area to be blasted so that the charge in each hole can be customised for optimised results.”


When asked about the future,


Rostami says, “Tere is always interest in improving the drill units and their efficiency. One of the issues of acute


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