- underground quarrying
- Горное дело: подземная разработка открытыми камерами большой высоты, подземная разработка с использованием оборудования для открытых работ
Универсальный англо-русский словарь. Академик.ру. 2011.
Универсальный англо-русский словарь. Академик.ру. 2011.
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
Underground mining (hard rock) — A three dimensional model of an underground mine with shaft access Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals[1] such as ore containing gold … Wikipedia
tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening … Universalium
Naples underground geothermal zone — One of the many caverns beneath Naples. Running beneath the Italian city of Naples and the surrounding area is an underground geothermal zone called the Campi Flegrei ( fiery fields ). This geothermal area runs generally from Mount Vesuvius… … Wikipedia
Quarry — For other uses, see Quarry (disambiguation). A quarry is a type of open pit mine from which rock or minerals are extracted. Quarries are generally used for extracting building materials, such as dimension stone, construction aggregate, riprap,… … 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
Slate industry — The slate industry is the industry related to the extraction and processing of slate. Slate is either quarried from a slate quarry or reached by tunneling in a slate mine . Common uses for slate include as a roofing material, a flooring material… … Wikipedia
Mendip Hills — Coordinates: 51°18′N 2°44′W / 51.3°N 2.733°W / 51.3; 2.733 … Wikipedia
Slate industry in Wales — The slate industry in Wales began during the Roman period when slate was used to roof the fort at Segontium, now Caernarfon. The slate industry grew slowly until the early 18th century, then expanded rapidly until the late 19th century, at which… … Wikipedia
Mining in Cornwall and Devon — Ruin of Cornish tin mine … Wikipedia
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