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单词 stoping
释义

stoping


stope

S0780400 (stōp)n. An excavation in the form of steps made by the mining of ore from steeply inclined or vertical veins.tr.v. stoped, stop·ing, stopes To remove (ore) from or mine by means of a stope.
[Perhaps from Low German, step, from Middle Low German stōpe.]
stop′er n.

stoping

(ˈstəʊpɪŋ) n (Geological Science) geology the process by which country rock is broken up and engulfed by the upward movement of magma. Also called: magmatic stoping

Stoping


stoping

[′stō·pər] (geology) magnetic stoping

Stoping

 

operations for the extraction of a mineral from a deposit by the underground method. In stoping, a distinction is drawn between combined or gross removal of a mineral and selective removal, in which certain grades of ores, coal, intercalated rock layers, and so on are extracted separately. Mining excavations formed as a result of stoping, and also the space formed after the removal of the mineral, are called stopes; the faces of stoping excavations are called working faces. Rock minerals are stoped with the use of a blast-hole drilling unit for preliminary loosening of the rock mass.

In the USSR, stoping is mechanized: cutter loaders, conveyors, and powered support are used in underground coal mining; loaders, scrapers, and underground excavators are used in underground ore extraction.

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