- Equipment, tools, and parts
- Geologic conditions and events
- Hazard prevention and control
- Hazards and exposures
- Mine locations, excavations, and structures
- Mining types and methods
- Population groups
- Products and materials
- Research disciplines
- Research methods and measures
- Tasks and activities
- Document types
Results 1 - 10 of 45
6/1/2010 - Conference papersThis paper presents a mathematical model based on the conservation of mass principle describing the flow of air (nitrogen and oxygen), methane, and carbon dioxide into and out of a sealed atmosphere and time-dependent changes in gas concentration.
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.
11/1/2009 - Conference papersThis paper seeks to encourage scientific discussion among international peers since preventing explosions within sealed areas is of interest to underground coal operators and regulators.
10/1/2009 - Conference papersThis report describes a new seal testing program that will provide essential validation data for mine seal analysis and design methods.
8/1/2009 - Information CircularsThis report presents nearly all structural data available from explosion tests of 20-psi mine ventilation seals and concrete-block ventilation stoppings that were conducted by the NIOSH during 1997-2008.
2/1/2009 - Conference papersThis paper describes the effort to create a reliable in-mine mobile plant for extracting nitrogen gas from the mine atmosphere. The gas produced by this novel technology can be used to create an inert environment in sealed mine areas.
This report provides a sound scientific and engineering justification to recommend a three-tiered explosion pressure design criterion for new seals. The recommendations contained herein apply to new seal design and construction in U.S. coal mines.
11/15/2016 - Research projectsA project seeking to eliminate disasters from gas explosions within sealed areas of coal mines through improved engineering of the complete sealing process and better education of the mining workforce.
10/22/2016 - Research projectsA project to utilize the capabilities of the Mine Roof Simulator (MRS) Laboratory to test underground roof support and ventilation structures and apply these results to engineer safer products and applications.
7/18/2016 - Contracts and cooperative agreementsA contract to establish guidelines for mine seal design under static and dynamic loading conditions from gas and/or dust explosions within sealed areas.