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- Mine locations, excavations, and structures:
- Sumps
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- Slopes
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- Material piles
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- Mine surface
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- Laboratories
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- Stoppings
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- Caves
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- Faces
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- Offices
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- Boreholes
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- Stopes
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- Highwalls
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- Underground
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- Tunnels
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- Crosscuts
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- Pillars
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- Yield pillars
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- Barrier pillars
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- Chain pillars
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- Web pillars
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- Returns
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- Escapeways
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- Gobs
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- Airways
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- Bulkheads
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- Intersections
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- Longwall panels
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- Headgates
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- Recovery rooms
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- Tailgates
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- Entries
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- Bleeder entries
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- Intake entries
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- Panel entries
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- Belt entries
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- Drifts
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- Ore passes
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- Ore chutes
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- Wells
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- Drainage wells
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- Water wells
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- Storage structures
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- Hoppers
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- Silos
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- Trenches
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- Processing plants
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- Benches
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- Manholes
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- Shafts
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- Transformer stations
- Document types:
- Conference papers
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Results 1 - 10 of 129
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7/1/2010 - Conference papersThis paper makes use of numerical models to examine the interaction between typical pillar systems and the surrounding rock mass for weak and strong geological conditions at various spans and depths of cover.
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6/1/2010 - Conference papersIn this NIOSH study, a computational fluid dynamics (CFD) model developed in previous work is used to model the effect of seal leakage on spontaneous heating of coal in longwall gob behind the seal.
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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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2/1/2009 - Conference papersThe load-deformation characteristics and the load capacity of welded wire screen (roof screen) used to control ground fall were evaluated in the laboratory in a specially built test frame.
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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 describes the results of a NIOSH borehole monitoring experiment (BME) on an active longwall panel.
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6/1/2008 - Conference papersThe results of field tests to understand how ventilation and gob characteristics affect the spontaneous heating process causing spontaneous combustion fires in longwall or worked-out gob areas are presented.
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9/1/2007 - Conference papersThis paper reviews how simultaneous application of three basic elements reduces the methane explosion hazard at coal mine working faces: (1) adequate ventilation, (2) regular monitoring of gas concentrations, and (3) elimination of ignition sources.
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6/1/2006 - Conference papersNIOSH conducted a study with the goal of characterizing methane emissions from increasing face lengths in the Pittsburgh Coalbed and providing a method of predicting emissions increases from longer faces and of planning for more methane control.
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6/1/2006 - Conference papersNIOSH conducted a longwall methane emission and mining time study at a Pittsburgh Coalbed mine to predict emissions from a longer face, and developed and applied mathematical formulas and constants to characterize four emission contributors.
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Content source: National Institute for Occupational Safety and Health, Mining Program