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• Surface mining equipment —   An Auger machine is a large, horizontal drill, generally 3 feet or more in diameter and up to about 100 feet long. It can remove coal at a rate of more than 25 tons per minute.   A bucket wheel excavator is a continuous digging machine equipped …   Energy terms

• coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …   Universalium

• Heavy equipment (construction) — Heavy machinery redirects here. For the album by Anders Johansson, Jens Johansson and Allan Holdsworth, see Heavy Machinery (album). Heavy equipment vehicles of various types parking near a highway construction site …   Wikipedia

• MINES ET CARRIÈRES — L’exploitation des mines est liée de façon étroite à l’histoire des civilisations. Les silex de l’âge de la pierre ont d’abord été ramassés sur le sol, puis extraits de couches de chaux, à partir des affleurements, par des puits et des galeries… …   Encyclopédie Universelle

• Dredging — Dredge redirects here. For other uses, see Dredge (disambiguation). Dredgers redirects here. For the German municipality, see Dreggers. Dredging is an excavation activity or operation usually carried out at least partly underwater, in shallow… …   Wikipedia

• Earthworks (engineering) — Earthworks are engineering works created through the moving of massive quantities of soil or unformed rock. Engineers need to concern themselves with issues of geotechnical engineering (such as soil fluidity and friction) and with quantity… …   Wikipedia

• Topic outline of mining — For a more comprehensive list, see the List of mining topics. Mining is the extraction of valuable minerals or other geological materials from the earth, usually (but not always) from an ore body, vein or (coal) seam. Materials recovered by… …   Wikipedia

• Braunkohletagebau — Braunkohle Tagebau Zwenkau. Der Abbau erfolgte gegen den Uhrzeigersinn. Tagebau (in Österreich auch Tagbau) ist ein Oberbegriff aus dem Bergbau. Es handelt sich um eine Örtlichkeit, in der oberflächennah Bodenschätze gewonnen werden, ohne dass… …   Deutsch Wikipedia

• Tagebau — Zwenkau. Die Braunkohle wurde gegen den Uhrzeigersinn abgebaut …   Deutsch Wikipedia

• dredge — dredge1 /drej/, n., v., dredged, dredging. n. 1. Also called dredging machine. any of various powerful machines for dredging up or removing earth, as from the bottom of a river, by means of a scoop, a series of buckets, a suction pipe, or the… …   Universalium

• brick and tile — ▪ building material Introduction       structural clay products, manufactured as standard units, used in building construction.       The brick, first produced in a sun dried form at least 6,000 years ago and the forerunner of a wide range of… …   Universalium