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Underground Mining. It is one of humanity's oldest and most impressive engineering activities, extracting an ore or mineral from many hundreds of feet deep. ... A given mine could be radically different in terms of size or layout from the next, and ultimately the size, depth and overall shape of the mine depend entirely on the dimensions of the ...
Bit - The cutting end of a drill frequently made of an extremely hard material such as industrial diamonds or tungsten carbide. Blackjack - A miner's term for sphalerite (zinc sulphide). Black …
roof, top, or overlying surface of an underground excavation. Bottom (floor) floor or underlying surface of an underground excavation. Capping. Waste material overlying the mineral deposit. …
Study with Quizlet and memorize flashcards containing terms like Mining, Mining, Mining and more. ... 5 Stages in Underground Mine Planning. 1. Feasibility Stage 2. Design Optimization 3. Design Scheduling 4. Production Scheduling 5. Further Exploitation. Mine Plan.
Dam An underground stopping or wall constructed out of masonry, clay and rubble, to prevent gas escaping, and causing explosions and fires. Used to block off areas of the mine that have been worked out ... Glossary of Mining Terms . 2 Ground Bailiff/Mine Surveyor Old term for Manager. Employed by the Mine Owner to watch the
Glossary of Mining Terms. Word/Phrase. Definition. Air Heading. Underground roadway or tunnel along which air passes. Damp (or "choke")A build-up of carbon dioxide and nitrogen in …
2. Underground mining. Underground mining is used to extract ore from below the surface of the earth safely, economically and with as little waste as possible. The entry from the surface to an underground mine may be through a …
The mining method used will depend on the characteristics of the orebody, particularly thickness
In practical terms, underground mining is used in instances where the ore body is too deep for profitable open-pit mining when the orebody's quality or grades can offset the costs, and when the need for a smaller ground …
UNDERGROUND MINING KEY Terminology Define the following terms as they relate to mining. Vein - A fissure, fault or crack in a rock filled by minerals that have travelled upwards from some deep source. Vug – A small cavity in a rock, frequently lined with well-formed crystals.Amethyst commonly forms in these cavities.
1. Underground Mining Methods 1.1. Classification of Underground Mining Methods 1.2. Underground Operations in General 1.3. Room-and-pillar Mining 1.4. Sublevel Stoping 1.5. Cut-and-fill Stoping 1.6. Longwall Mining 1.7. Sublevel Caving 1.8. Block Caving 2. Underground Mining Machinery Glossary Bibliography Biographical Sketches Summary
Drift mining can refer to one of two things: mining an ore deposit by underground mining or working coal seams through adits. A mining drift is an underground mine where the entry is above water level and typically on …
Study with Quizlet and memorize flashcards containing terms like Back, Bottom, Capping and more.
Mining - Strip, Open-Pit, Quarrying: It has been estimated that more than two-thirds of the world's yearly mineral production is extracted by surface mining. There are several types of surface mining, but the three most common are open-pit mining, strip mining, and quarrying. These differ from one another in the mine geometries created, the techniques used, …
Coal mining - Underground mining: In underground coal mining, the working environment is completely enclosed by the geologic medium, which consists of the coal seam and the overlying and underlying strata. Access to the coal seam is gained by suitable openings from the surface, and a network of roadways driven in the seam then facilitates the installation of …
Shaft mining is an excavation method used to access an underground ore body from the top down. The term "shaft" refers to the vertical tunnels sunk underground for mining and engineering projects.. When the opening starts on the surface, the resulting tunnel is called a shaft. If the vertical tunnel starts underground and pushes upward, it's called a sub-shaft.
Following is an A-Z guide of mining terms. ... Sulphide ore: Sulphide ores are generally found hundreds of metres below surface and generally require underground mining infrastructure. The main ...
A mining method for narrow orebodies where no backfill is required during the stoping operation. Successive horizontal slices of ore are taken along the length of the stope back and left in place to support the walls rocks and serves as a working floor for the next slice.
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Back - The roof or upper part in any underground mining cavity. Backfill - Mine waste or rock used to support the roof after coal removal. Barren - Said of rock or vein material containing no minerals of value, and of strata without coal, or containing coal in seams too thin to be workable. Barricading - Enclosing part of a mine to prevent inflow of noxious gasses from a mine fire or …
Study with Quizlet and memorize flashcards containing terms like Primary opening, Secondary opening, Tertiary Openings and more.
Important Terms of Mining: Bench: is a ledge which forms a single level of operation where ore and waste are excavated. Berm: is a horizontal shelf or ledge built in to a sloping wall of an open pit or quarry for protection under level. High Wall: is an unexcavated face or slope of rock between benches. Overburden: is non-valuable minerals above ore which must be removed to extract …
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In practical terms, underground mining is used in instances where the ore body is too deep for profitable open-pit mining when the orebody's quality or grades can offset the costs, and when the need for a smaller ground footprint is preferred, such as in comparison to open-pit mining. The technique of narrow vein stoping is an example of a ...
The world of gold mining is filled with unique terms and phrases that can be confusing for those who are not familiar with the industry. This glossary provides a comprehensive list of essential gold mining terminology to help clarify key terms of the trade. The information in this glossary is sourced from various reliable sources.
Water inflow was a very important problem in underground mining until James Watt invented the steam engine in the 18th century. After that, steam-driven pumps could be used to remove water from the deep mines of the day. Early lighting systems were of the open-flame type, consisting of candles or oil-wick lamps. In the latter type, coal oil, whale oil, or kerosene …
The Glossary of Mining Terminology is a first attempt to improve Inuktitut terminology in the resource development field. The aim of the glossary is to clarify some technical words associated with resource development using everyday language. The Glossary of Mining Terminology is a living document that will continue to be improved as the industry develops and Inuktitut …
Study with Quizlet and memorize flashcards containing terms like The weight of the rocks above a narrow roadway is transferred to the solid coal along the sides., Contains free sulfuric acid, mainly due to the weathering of iron pyrites., Any place in a mine where miners are normally required to work or travel and which are ventilated and inspected regularly. and more.
