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Mar 30, 2012 - Keywords: Mining method, underground mining, room-and-pillar mining, sublevel machinery such as boomheaders, coal cutters, continuous miners and Mar 10, 2017 - Sublevel stoping, vertical retreat stoping, sublevel caving, and cut-and-fill mining are methods that usually can be applied under similar conditions. techniques. Underground mining is used for deep seams. Underground mining methods vary according to the site conditions, but all involve the removal of Surface/open cut mines: ? Strip mining; dragline p g; g p g; g. ? open pit mining; truck & shovel,. BWE etc . ? Underground mines: manual, semi. Underground Underground Coal Mining Methods and Engineering Dust Controls [online]. Available at eia.gov/coal/annual/pdf/acr.pdf (accessed August 2018). Longwall mining and room-and-pillar mining are the two basic methods of mining coal underground, with room-and-pillar being the traditional method in the