Mine Research at The International Nickel Company of Canada, Limited
This paper discusses mine research at Inco, giving specific examples of research projects which illustrate the approach to mining problems. The first example covers the development of a new mining method, "undercut and fill," which was originated for mining badly broken-up pillars, but which is now rapidly replacing the square set method of pillar recovery. In the new method, ore is extracted in a series of successive horizontal cuts, progressing downward, a cut being completely mined and filled before the cut below is started.
ammonium nitrate, explosives, mining, stopes, stringers, blasting, Development, Developments, Mine, Mines, mining, Research