Browse TRAIL Inventories

Permissible mine equipment approved by the Bureau of Mines during 1967-68 :a supplement to Bulletin 543 and Information circulars 8220, 8299, and 8372

Tunnel boring technology :disk cutter experiments in sedimentary and metamorphic rocks

Tunneling machine research :development of an experimental full-scale research rock cutting device

Tunneling machine research :interaction between disk-cutter grooves in rocks

Tunnel boring technology:disk cutter experiments in metamorphic and igneous rocks

Tunneling machine research :size distribution of rock fragments produced by rolling disk cutters

Overcoring equipment and techniques used in rock stress determination

Drillability determination :a drillability index for percussion drills

Mine power systems research(in four parts) :

Mine power systems research(in four parts) :

Mine power systems research(in four parts) :


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