sublevel caving

sublevel caving

[¦səb′lev·əl ′kāv·iŋ]
(mining engineering)
A stoping method in which relatively thin blocks of ore are caused to cave by successively undermining small panels.
References in periodicals archive ?
A preliminary economic assessment (PEA) has selected a combination of sublevel caving and mechanized cut-and-fill as the mining methods, with a ramp serving as the primary mine access.
Highly regarded JKTech Pty Ltd have been engaged "to provide a high level study to evaluate the Mount Adrah orebody caveability and assess the potential for block or sublevel caving methods based on geological and geotechnical criteria".
The sublevel caving mining system is used for steep, continuous mineral deposits.
Selection of preferred mining methods tended towards non-entry methods such as block caving and sublevel caving, allowing high levels of automation, control and monitoring, thereby minimising the number of people required to work in potentially hazardous conditions.
Bull and Chris Page [27] provide an excellent summary of sublevel caving.
Once the mining of panel 2 on the 140m level is finished and a slot is completed from the 140L to pit bottom, sublevel caving of the main ore body can commence later this month.
Mining will be by sublevel caving to extract the extensive sulphide orebody beneath the current open pit.
However, in order to increase mining capacity and reduce production costs, decision has been made to change this system to sublevel caving system (SLC).
Ongoing stope development for sublevel caving will produce waste rock in the amount of 25% of the ore extracted and there is no place to leave any of it underground when this mining method is employed.
Sublevel caving is scheduled for mid August 2010 after the open pit is exploited to approximately the 1270 level.
333), the final stage of which was completed this February, and, most closely related to AutoMine, the four Toro 2500E LHDs that are now operating semi-autonomously in the Kiruna sublevel caving mine.
When the core of the pit is exploited, sublevel caving of the underground orebody can provide the tonnage necessary to continue to operate the Mill at the desired rate.