- longwall advancing
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сплошная система разработки
English-Russian dictionary of geology. 2011.
longwall advancing
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Сплошные системы разработки — (a. longwall advancing, longwall mining system; н. Strebbau als Vorbau; ф. methode d exploitation par tailles; и. sistema explotacion en avance, sistema explotacion avanzando) – 1) при подземной разработке угольных м ний системы … Геологическая энциклопедия
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Underground mining (soft rock) — refers to a group of underground mining techniques used to extract coal, oil shale and other minerals or geological materials from sedimentary ( soft ) rocks. Because deposits in sedimentary rocks are commonly layered and relatively less hard,… … Wikipedia
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Retreat mining — is a term used to reference the final phase of an underground mining technique known as room and pillar mining. This involves excavating a room or chamber while leaving behind pillars of material for support. This excavation is carried out in a… … Wikipedia
