ore pass

ore pass

[′ȯr ‚pas]
(mining engineering)
A vertical or inclined passage for the downward transfer of ore.
References in periodicals archive ?
Tenders are invited for Sinking of ore pass and its allied work at kandri mine
On the night shift of June 8, 2011 Jason Chenier and Jordan Fram were working at an ore pass on the 3,000 foot level of Stobie Mine.
An interior working shaft and an ore pass with a crushing and loading station at its bottom were raised from the 2200L adit to the Fairview mine 1148 feet (350 m) above (primary crushing continued to be done underground until the 1940s).
The current mine plan reduces the ore haulage distance and related expenses by dropping crushed ore approximately 350 feet down a vertical underground ore pass where it will then be transported via conveyor belt through a 3,400-foot tunnel to a secondary crusher.
So far, Peugh said, Modular has received positive feedback from an underground miner in Australia who used the module to manage ore pass inventory and to track volumes and grade parameters at intermediate muck piles.
Penguin's robots are being tested with the goal of removing hazardous jobs from the mine, including taking scans of an ore pass after blasting or working near areas of liquefaction.
A typical example is Anglo Technical Services' mudrush control chute in an ore pass, which in the past took up to 40 hours to mesh and analyze.
Tenders are invited for Additional excavation in manganiferous rock for concreting of cross cut, manways and ore pass etc.
Because of the ore's high grade, once mining has been completed in a sublevel, the floor is cleaned all the way to the ore pass, so that any spilled gold is recovered.
The ore bodies will be accessed by 2m x 2m drives and cross-cuts into stopes that are mined by traditional overhand shrinkage stoping mining methods, with the ore being drawn from access points and transported on underground locos and tipped into bins on an ore pass system.
67 grams/tonne) from an open cut which was connected to a 225 meter adit by means of an ore pass.