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单词 quarrying
释义

quarrying


quar·ry 1

Q0017300 (kwôr′ē, kwŏr′ē)n. pl. quar·ries 1. a. A hunted animal; prey.b. Hunted animals considered as a group; game.2. An object of pursuit: The police lost their quarry in the crowd.
[Middle English querre, entrails of a deer given to hounds as a reward, from Old French cuiriee, alteration (influenced by cuir, skin) of coree, from Vulgar Latin *corāta, viscera, from Latin cor, heart; see kerd- in Indo-European roots.]

quar·ry 2

Q0017300 (kwôr′ē, kwŏr′ē)n. pl. quar·ries 1. An open excavation or pit from which stone is obtained by digging, cutting, or blasting.2. A rich or productive source: found the book an indispensable quarry of information.tr.v. quar·ried, quar·ry·ing, quar·ries 1. To obtain (stone) from a quarry, as by cutting, digging, or blasting.2. To extract (facts, for example) by long, careful searching: finally quarried out the genealogy from hundreds of sources.3. To use (land) as a quarry.
[Middle English quarey, from Medieval Latin quareria, quareia, alteration of Old French quarriere, from *quarre, cut stone, from Latin quadrum, square; see kwetwer- in Indo-European roots.]
quar′ri·er n.

quar·ry 3

Q0017300 (kwôr′ē, kwŏr′ē)n. pl. quar·ries 1. A square or diamond shape.2. A pane of glass having this shape.
[Variant of quarrel.]

quarrying

(ˈkwɒrɪɪŋ) n (Mining & Quarrying) the extracting of stone from a quarry
Thesaurus
Noun1.quarrying - the extraction of building stone or slate from an open surface quarryquarrying - the extraction of building stone or slate from an open surface quarryproduction - (economics) manufacturing or mining or growing something (usually in large quantities) for sale; "he introduced more efficient methods of production"quarry - extract (something such as stones) from or as if from a quarry; "quarry marble"

quarrying


quarrying,

open, or surface, excavation of rock used for various purposes, including construction, ornamentation, road building, and as an industrial raw material. Rock that has been quarried is commonly called stone. Quarrying methods depend chiefly on the desired size and shape of the stone and its physical characteristics. For industrial use (e.g., limestone for preparing cement), as the aggregate in concrete, or for road beds, the rock is shattered. Explosives are detonated in a series of holes drilled in the rock in a pattern designed to yield the greatest amount of fracturing. The rock fragments may be further reduced in crushing machines and sorted according to size by screening. For building stone, rocks that do not shatter are separated by blasting; for softer rocks or when explosives cannot be used (e.g., because they would disturb adjacent workings), a process known as broaching, or channeling, is used. In this process a line of holes is drilled perpendicular to the joints or cleavage planes of a formation; wedges are inserted into the holes and hammered until the stone splits off. This method was probably used in ancient times, notably by the Incas and the Egyptians. Much quarrying of ornamental stone today is done by using pneumatically operated channelers. After the vertical cuts have been made, gadding machines (working on the same principle) are used to make horizontal cuts. Wedges are then used to split off the long blocks, which are subdivided and removed. Wire saws are also used; these consist of several pulleys over which passes an endless steel wire. Holes are drilled in the rock, each hole being made large enough to accommodate a pulley and the shaft to which it is attached. The wire, extending from one pulley to another, presses down against the rock between them. As the cut is deepened by the constantly moving wire the pulleys are continuously lowered into the holes.

quarrying

[′kwär·ē·iŋ] (engineering) The surface exploitation and removal of stone or mineral deposits from the earth's crust. (geology) plucking

Quarrying

The process of extracting stone for commercial use from natural rock deposits. The industry has two major branches: a dimension-stone branch, involving preparation of blocks of various sizes and shapes for use as building stone, monumental stone, paving stone, curbing, and flagging; and a crushed-stone branch, involving preparation of crushed and broken stone for use as a basic construction, chemical, and metallurgical raw material.

MedicalSeechannelingLegalSeeQuarry

quarrying


  • noun

Words related to quarrying

noun the extraction of building stone or slate from an open surface quarry

Related Words

  • production
  • quarry
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更新时间:2024/12/23 18:22:49