- bord-and-pillar
- камерно-столбовая система
English-Russian mining dictionary. 2015.
bord-and-pillar
Смотреть что такое "bord-and-pillar" в других словарях:
bord and pillar — /börd ənd pilˈər/ noun A mining technique in which coal is extracted in two stages, first through a grid of parallel tunnels (bords) which when finished leave blocks (pillars) that are extracted in a second stage … Useful english dictionary
bord-and-pillar — | ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ adjective : of or relating to a system of coal mining in which tunnels are driven in a checkerboard pattern having massive square pillars between them which are gradually cut away as the work proceeds … Useful english dictionary
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-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
pillar-and-breast — | ̷ ̷ ̷ ̷ ̷ ̷| ̷ ̷ adjective : bord and pillar * * * /pil euhr euhn brest /, adj. Mining. room and pillar … Useful english dictionary
bord — /bɔd/ (say bawd) noun Mining one of a series of cutting or excavation across the grain of the coal, which relate broad passageways to narrow passages or headways; part of the bord and pillar method. {variant spelling of board, from the boards… …
post-and-stall — | ̷ ̷ ̷ ̷| ̷ ̷ adjective Etymology: post (I) : bord and pillar … Useful english dictionary
Andrew Handyside and Company — Création 1848 Disparition v. 1920 Fondateurs … Wikipédia en Français
Coal mining — Men leaving a UK colliery at the close of a shift Surface coal mining in Wyo … Wikipedia
History of coal mining — Due to its abundance, coal has been mined in various parts of the world throughout history and continues to be an important economic activity today. Compared to wood fuels, coal yields a higher amount of energy per mass and could be obtained in… … Wikipedia
Morupule Colliery — Location … Wikipedia
