- 行业: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
A hole at or near the bottom of a furnace or ladle through which molten metal, matte, or slag can be tapped or drawn from a furnace.
Industry:Mining
A hole at or near the bottom of a furnace or ladle through which molten metal, matte, or slag can be tapped or drawn from a furnace.
Industry:Mining
A hole drilled for a seismic shot. It is usually a slim hole, although it has also been termed core hole.
Industry:Mining
A hole drilled for geologic structure alone, although other types of information may be acquired during the drilling. This type of hole is drilled to a structural datum, which is normally short of known or expected producing zones.
Industry:Mining
A hole drilled for the purpose of splitting a block of stone. These holes are usually in rows. The plug is a slightly wedge-shaped piece of iron driven between two L-shaped irons, or feathers, inserted in the hole.
Industry:Mining
A hole drilled in a material to be blasted, for the purpose of containing an explosive charge.
Industry:Mining
A hole drilled to a slightly larger diameter than the bolt passing through it. The clearance for black bolts is normally 1/16 in (1.6 mm).
Industry:Mining
A hole drilled with a core drill, usually for the purpose of securing geologic information and sometimes with the purpose of investigating geologic structure.
Industry:Mining
