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Full-Text Articles in Mining Engineering
Explosion Testing Of A Polycarbonate Safe Haven Wall, Kyle A. Perry, Rex A. Meyr
Explosion Testing Of A Polycarbonate Safe Haven Wall, Kyle A. Perry, Rex A. Meyr
Mining Engineering Faculty Research & Creative Works
The MINER Act of 2006 was enacted by MSHA following the major mining accidents and required every underground coal mine to install refuge areas to help prevent future fatalities of trapped miners in the event of a disaster where the miners cannot escape. A polycarbonate safe haven wall for use in underground coal mines as component of a complete system was designed and modeled using finite element modeling in ANSYS Explicit Dynamics to withstand the MSHA required 15 psi (103.4 kPa) blast loading spanning 200 milliseconds. The successful design was constructed at a uniform height in both half-width scale and …
Modern Rock Dust Development And Evaluation For Use In Underground Coal Mines, Robert Eades
Modern Rock Dust Development And Evaluation For Use In Underground Coal Mines, Robert Eades
Theses and Dissertations--Mining Engineering
Following the promulgation of new permissible respirable dust standards by MSHA in 2014, new alternative rock dusts were created that combined the advantages of current industry applications while potentially reducing miner exposure to respirable dust. Research was performed to compare the explosion suppressing and ejection characteristics of three new types of rock dust to existing rock dust types. Explosion suppression tests were conducted in a 38-L chamber where pressures were recorded. Angle of ejection tests were conducted using a high explosive shock tube and high speed photography to determine angle of ejection and lift velocity. A comprehensive comparison of the …