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Stoping is the process of extracting the desired ore or other mineral from an underground mine, leaving behind an open space known as a stope. [1] Stoping is used when the country rock is sufficiently strong not to collapse into the stope, although in most cases artificial support is also provided.
Shrinkage stoping is a short-hole mining method which is suitable for steeply dipping orebodies. This method is similar to cut and fill mining with the exception that after being blasted, broken ore is left in the stope where it is used to support the surrounding rock and as a platform from which to work.
Stoping is a process accommodating the ascent of magmatic bodies from their sources in the mantle or lower crust to the surface. The theory was independently developed by Canadian geologist Reginald Aldworth Daly [ 1 ] and American geologist Joseph Barrell .
Room and pillar or pillar and stall is a variant of breast stoping. It is a mining system in which the mined material is extracted across a horizontal plane, creating horizontal arrays of rooms and pillars. To do this, "rooms" of ore are dug out while "pillars" of untouched material are left to support the roof – overburden.
Wood warping is a deviation from flatness in timber as a result of internal residual stress caused by uneven shrinkage. Warping primarily occurs due to uneven expansion or contraction caused by changes in moisture content.
Shrinkage (accounting), loss of product inventory due to theft, damage, spoilage, etc. Shrinkage defect or shrinkage void, a casting defect caused by metal solidifying from the outside inward; Shrinkage (statistics), a technique to improve an estimator; Shrinkage (slang)
The Arizona States of the world can grow college football and turn the CFP into something magical even if they fell short to Texas in the Peach Bowl.
Closed shrinkage defects, also known as shrinkage porosity, are defects that form within the casting. Isolated pools of liquid form inside solidified metal, which are called hot spots. The shrinkage defect usually forms at the top of the hot spots. They require a nucleation point, so impurities and dissolved gas can induce closed shrinkage defects.