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United States Bureau of Mines
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 ...
The supporting of undercut coal with short wedges or chocks.
Industry:Mining
The supports of a core in the sand of a mold.
Industry:Mining
The supposedly ultrabasic layer of the Earth below the sima, immediately below the Mohorovicic discontinuity.
Industry:Mining
The surface along which an earth bank is liable to fail under load.
Industry:Mining
The surface area affected by compressive strain. Compare: neutral zone; tension zone.
Industry:Mining
The surface area affected by subsidence.
Industry:Mining
The surface area affected by tensile strain. Compare: compression zone; neutral zone; tension.
Industry:Mining
The surface configuration achieved by backfilling and grading of the mined area so that the reclaimed area, including any terracing or access roads, closely resembles the general surface configuration of the land prior to mining and blends into and complements the drainage pattern of the surrounding terrain, with all highwalls, spoil piles, and coal refuse piles eliminated.
Industry:Mining
The surface of a body of water in contact with the atmosphere; i.e., at atmospheric pressure.
Industry:Mining
The surface of a fracture along which dislocation has taken place. Compare: fault plane
Industry:Mining
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