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Civil engineering projects have greatly benefited from the mechanical excavation of hard rock
technology. Mining industry, on the other hand, is still searching for major breakthroughs to
mechanize and then automate the winning of ore and drivage of access tunnels in its
metalliferrous sector. The aim of this study is to extend the scope of drag bits for roadheaders
in hard rock cutting. Various factors that can impose limitations on the potential applications
of drag bits in hard rock mining are investigated and discussed along with alternative
technology options.
S. T. A. Gillani, N. Butt. (2009) Excavation Technology for Hard Rock - Problems and Prospects, Pakistan Journal of Engineering and Applied Sciences, Volume 4, Issue 1.
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