Long hole stoping as the name suggests uses holes drilled by a production drill to a predetermined pattern as designed by a mining engineer. Long hole stoping is a highly selective and productive method of mining and can cater for varying ore thicknesses and dips (0 – 90 degree). It differs from manual methods such as timbered and shrinkage as once the stope has begun blasting phase it cannot be accessed by personnel. For this reason the blasted rock is de.
[pdf] The Boyles C5/C5C surface core drilling rig is compact, yet powerful. Its compact design makes it easy to position and transport, even by helicopter. During helicopter transport, the rig is broken dow.
[pdf] A Pile Top RCD fitted with a 2-metre diameter drill bit is estimated to be capable of “mining” about 7 tonnes of Ore per hour. The Pile Top RCD is capable of drilling holes with inclinations from 90 o (vertical) to 72 o. The working deck has variable geometry to keep it level.
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