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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 pressure of the rocks over active mine workings. It is the roof weight that acts on the packs and the solid coal in the working area.
Industry:Mining
The pressure on a structure due to wind, which increases with wind velocity approx. in accordance with the formula p &#61; 0.003 v<sub>2</sub>, where p is the pressure in pounds per square feet of area affected, and v is the wind velocity in miles per hour.
Industry:Mining
The pressure peak leading the detonation wave prior to the establishment of the C-J state.
Industry:Mining
The pressure per unit area.
Industry:Mining
The pressure produced in the reaction zone of a detonating explosive and is a function of explosive density and detonation velocity.
Industry:Mining
The pressure required to overcome the static and potential energy head losses and to provide the velocity head to move a quantity of air through a network.
Industry:Mining
The pressure that the overlying rocks exert on the support of mine workings.
Industry:Mining
The pressure under which a foundation will settle with no increase of load.
Industry:Mining
The prevention or reduction of the dispersion of dust into the air, for example, by water sprays.
Industry:Mining
The price agreed between the seller and the buyer of an option at which the option can be exercised. The price is normally the current market price of the metal.
Industry:Mining
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