A drilling rig is a machine that creates holes in the earth's subsurface. Drilling rigs can be massive structures housing equipment used to drill water wells, oil wells, or natural gas extraction wells, or they can be small enough to be moved manually by one person and such are called augers.
Jeffrey Machine, Inc. is a state of the art auger tooling manufacturer as well as various other types of drilling tools. In addition to a full line general machine shop providing tool and die work fabricated steel products, Jeffrey Machine, Inc. also performs many types of hard surface welding.
NORCAT's Common Core Training is delivered at NORCAT's office in Sudbury, ON and the NORCAT Underground Training Centre in Onaping, ON. Courses include Basic Underground Hard Rock Miner, Basic Underground Hard Rock Miner Service Type, Surface Miner, First Line Underground Mine Supervisors and Generic Supervisors.
Varel Mining and Industrial manufactures and services application specific roller cone bits for the Mining and Construction industries. Our proprietary design capabilities, efficient manufacturing, and global sales force uniquely position us to provide reliable drilling solutions f
Bachelor of Science Mining Engineering. Entering freshmen desiring to study Mining Engineering will be admitted to the Freshman Engineering Program. They will, however, be permitted, if they wish, to state a Mining Engineering preference, which will be used as a consideration for available freshman departmental scholarships.
A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back abutment, that is, the settled packs behind the face.
Rock coring is the use of a diamond encrusted drill bit to drill through the bedrock. With high speed rotation and water as a flushing agent, as well as to cool the bit, the drill produces a core sample which then is extracted from depth, for examination.
Back — The roof or upper part in any underground mining cavity. Backfill — Mine waste or rock used to support the roof after coal removal. Barren — Said of rock or vein material containing no minerals of value, and of strata without coal, or containing coal in seams too thin to be workable.
A world leader in mining equipment and rock excavation. Our constantly evolving offering for mining and rock excavation covers rock drilling, rock cutting, crushing and screening, loading and hauling, tunneling, quarrying and breaking and demolition.