room mining

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• Mining Museum Příbram — The seat of Mining Museum Příbram Mining Museum Příbram (Czech: Hornické muzeum Příbram) is a large open air museum of mining with historical buildings and expositions of mining history and mineralogy. It is located in Příbram s Březové Hory… …   Wikipedia

• Room and pillar — (also called bord and pillar) is a mining system in which the mined material is extracted across a horizontal plane while leaving pillars of untouched material to support the roof overburden leaving open areas or rooms underground. It is usually… …   Wikipedia

• room-and-pil|lar — «ROOM uhn PIHL uhr, RUM », adjective. of or designating a system of mining coal in which a series of rooms is cut into the coal bed, in each of which the miners leave columns of coal standing to help support the roof until they mine out a… …   Useful english dictionary

• Mining — This article is about the extraction of geological materials from the Earth. For the municipality in Austria, see Mining, Austria. For the siege tactic, see Mining (military). For name of the Chinese emperor, see Daoguang Emperor. Simplified… …   Wikipedia

• mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …   Universalium

• Room-and-pillar mining —   The most common method of underground mining in which the mine roof is supported mainly by coal pillars left at regular intervals. Rooms are places where the coal is mined; pillars are areas of coal left between the rooms. Room and pillar… …   Energy terms

• Room 39 — For the Royal Navy intelligence organization, see Room 39 (Royal Navy). Room 39 (also referred to as Bureau 39, Division 39, or Office 39[1]) is a secretive Democratic People s Republic of Korea government organization that seeks ways to maintain …   Wikipedia

• room — /roohm, room/, n. 1. a portion of space within a building or other structure, separated by walls or partitions from other parts: a dining room. 2. rooms, lodgings or quarters, as in a house or building. 3. the persons present in a room: The whole …   Universalium

• room-and-pillar — /roohm euhn pil euhr, room /, adj. Mining. noting a means of extracting coal or other minerals from underground deposits by first cutting out rooms, then robbing the pillars between them; pillar and breast. Cf. longwall. * * * …   Universalium

• room-and-pillar — | ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ adjective : bord and pillar * * * /roohm euhn pil euhr, room /, adj. Mining. noting a means of extracting coal or other minerals from underground deposits by first cutting out rooms, then robbing the pillars between them;… …   Useful english dictionary

• room boss — noun : one who inspects the rooms in mines to ensure that mining is done properly and safety regulations are observed …   Useful english dictionary