drill drift

drill drift

[′dril ‚drift]
(engineering)
A steel wedge used to remove tapered shank tools from spindles, sockets, and sleeves.
References in periodicals archive ?
Tenders are invited for Quotations In E-Mode Are Invited For Supply Of Drill Drift At Beml, Mysore Complex
Other mining method names are merely variations or closer definition of others (Sublevel Stoping is typically Blasthole carried out with more than one drill drift per level interval and Sublevel Retreat simply defines the direction of the mining).
In 2004 alone, Apollo completed a total of 315 core drill holes totaling 43,280 meters from surface and 41,065 meters from underground along a newly developed underground 920 meter long drill drift on the 235m level.
This will allow each subsequent stope, downwards, to have its drill drift developed in the bottom of the fill in the stope above.
Remote or tele-operated equipment will be used for all drill drift and draw-point development, and any other mining work in ore.
Apollo Gold is currently drilling with three surface core rigs as well as four underground core rigs at Black Fox from the recently completed underground drill drift at the 235 meter level.
The holes are spaced 5 to 10 metres apart, are listed in order ranging from west to east and were drilled from a drill drift previously constructed for the purpose.
The initial program includes about 5,000 metres of drilling from stations along the newly established drill drift and will aid in defining mineral-zone shapes and locations for the upcoming test-mining program.
A 185-metre-long drill drift, which will enable detailed drilling and resource definition and expansion, has been constructed.
The initial drilling program includes about 5,000 metres of drilling from stations along the newly established drill drift.
A 185-meter long drill drift, which will enable detailed drilling and resource definition, has been constructed.