Modify Selection
- Research methods and measures:
- Pressure
- Document types:
- Conference papers
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Results 1 - 10 of 10
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9/1/2010 - Conference papersThis paper describes the first phase of research aimed at understanding explosion pressures that can develop in coal mines and the factors that lead to high explosion pressure and possible transition to detonation.
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3/1/2010 - Conference papersThe effect of inflow and outflow of gas on the potential spontaneous heating in the gob was investigated using the computational fluid dynamics (CFD) model.
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6/1/2008 - Conference papersThe paper provides: (a) a description of the gas pressure-based design approach to blasting, (b) a simple technique for estimating the damage radius of the buffer row of holes, and (c) a discussion of smoothwall design for the contour row of holes.
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6/1/2008 - Conference papersThis paper compares the transverse load capabilities of several block materials and wall dimensions commonly used in stopping constructions based upon simulated three-hinge, rigid-arch loading tests of half-wall constructions.
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8/1/2004 - Conference papersA new generation of hydraulic mine support prestressing devices has been developed. This paper examines the performance capabilities of these inflatable prestressing units and the impact they have on the performance of various support systems.
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8/1/2002 - Conference papersA high percentage of longwall shields, which provide ground control in mines, operate well below the rated support capacity due to hydraulic malfunctions. NIOSH developed a computer program to identify shields not performing to rated specifications.
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10/1/1999 - Conference papersA Mine Safety and Health Administration-permissible load rate monitoring system was developed.
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3/1/1999 - Conference papersAccelerometers and pressure transducers mounted in suspension components can be used to monitor the ride of haulage trucks. When information from a Global Positioning System is recorded at the same time as shock pressures or acceleration date, then the...
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8/1/1998 - Conference papersThis paper examines the operating principles of hydraulic cylinders and discusses issues pertaining to setting loads, support stiffness, yielding behavior, errors in assessing support loading, and hydraulic failure mechanisms and how to detect them.
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2/1/1995 - Conference papersThis project investigates the behavior of blast waves from the detonation of high explosives in an underground mine.
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Content source: National Institute for Occupational Safety and Health, Mining Program