- 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 ...
An injected wall-like intrusion of magmatic ore, forced in a liquid state across the bedding or other layered structure of the invaded formation.
Industry:Mining
An in-place shear test in which a rod with thin radial vanes at the end is forced into the soil and the resistance to rotation of the rod is determined.
Industry:Mining
An in-place test to measure the shear strength of fine-grained cohesive soils and other soft deposits. A rod with four flat radial blades, or vanes, projecting at 90 degrees 3475 intervals is forced into the soil and rotated; the torque required to rotate the rod is a measure of the material's shear strength.
Industry:Mining
An inrush of water, on a large scale, that floods the entire mine or a large section of the workings.
Industry:Mining
An insert of metal with low melting point placed in boilers, sprinklers, and other devices to melt when the temperature becomes dangerously high, so that the melting will relieve pressure, allow water flow, or otherwise tend to alleviate the dangerous condition.
Industry:Mining
An inspection instrument, which sends, by electronic means, pulses of high frequency through the material to be tested and measures the time of travel from the transmitter on one face to the receiver on the distant face of the material. This method of inspection is known as pulse testing.
Industry:Mining
An inspection procedure in which the radiographic image of the subject is viewed on a fluorescent screen; normally limited to low-density materials or to thin sections of metals because of the low-light output of the fluorescent screen at safe levels of radiation.
Industry:Mining
An instantaneous detonator that has a strength equivalent to that of a detonator with a base charge of 0.40 to 0.45 g PETN.
Industry:Mining
