澳大利亚井下采矿词汇..docVIP

GLOSSARY OF AUSTRALIAN HARD ROCK UNDERGROUND TERMINOLOGY 澳大利亚井下采矿词汇 Adit 平硐 A tunnel driven horizontally into the side of a hill or pit as opposed to a decline or shaft. Once very common due to the use of rail haulage in mines. 隧道水平进入一个矿山或矿坑，与斜坡道和竖井相对。曾经在使用轨道运输的矿山很普遍。 Air leg 气腿子 (1) A telescopic ram driven by compressed air. Designed to fit into a pivot attached to a pneumatic hand-held rock drill. (2) The assembled leg and drill. (combination also known as “Machine Leg” or “Machine”). A non-pivoting drill and ram being known as a “Stoper” or “Rise Feed” rockdrill. Air Blast 空气冲击波 (1) The concussion or air movement caused by firing of explosives. Air blast is increased if explosives are unable to release energy in the breaking of rock either through not being confined or having too low a powder factor to break to the free face. (2) The air movement caused by massive failure of stopes as when a cave stops propagating (hangs up) and then releases, creating a piston type effect. AMG澳大利亚网格 Australian Map Grid. Any of the planar grid systems derived from mathematical rules that have been applied in Australia to allow for the curva