Under ground mining • Room and pillar mining is used in the coal mine • There are intersecting rooms with pillars of coal to hold the roof up • These pillars are mined when the mine, or a part of it, are closing in • They are careful when they do this because the roof caves in as they leave
Underground mining Longwall mining: Usually a machine called a continuous miner slices layers of coal or other minerals from the walls
When underground mining is used • When the mineral is only found deep under ground or on the side of a mountain • If you didn’t want people to see the mine then you could make it underground • When you don’t want to disturb the habitat on the surface you could build a underground mine
Equipment\machinery used • Bulldozers • Drills • Explosive trucks • Twin boom jumbo • Underground loader • Underground dump truck Drills Underground Loader
Minerals mined when underground mining • Asbestos • Boron • Graphite • Kaolinite • Limestone • Salt • Vermiculite • Zeolite • Uranium Asbestos Boron Zeolite Graphite Vermiculite Uranium
Underground mine • One of the names of an underground mine is called the Big Ben and it’s located in Australia. There are lots of underground mines in Australia. They mine lots and lots of coal there.