Other articles where Sublevel caving is discussed: mining: Sublevel caving: This method owes the first part of its name to the fact that work is carried out on many intermediate levels (that is, sublevels) between the main levels. The second half of the name derives from the caving of the hanging wall and…
stoping, cut-and-fill, longwall mining, sublevel caving, and block caving. The second section describes underground mining equipment, with particular focus on excavation machinery such as boomheaders, coal cutters, continuous miners and shearers. 1. Underground Mining Methods 1.1. Classification of Underground Mining Methods
Apr 08, 2016· The industry perception is that sublevel caving is a "dirty mining method" (i.e. high dilution and low recovery). However, there were several successful sublevel cave mines executed in the past. The success of a sublevel cave mine is not by chance - they are engineered to perform.
Block caving. Cave mining (both block caving and sub-level caving), which is currently used at Petra's underground mines in South Africa is a well-established and safe mechanised mining method that was first introduced at Kimberley, South Africa in 1951.
2.Blasting- starts at the uppermost sublevel at hanging wall-blasting of fan breaks ore causing it to cave into the drift. 3. Ore extraction allows several drifts to be operated on the same sublevel ... Advantages of Sublevel Caving selective mining of weak- medium strength ore bodies in weak rock. small ore bodies can be mined. highly mechanized.
sublevel caving, mine fill, surface support and deep and high stress mining. The continued high attendance at our underground mining companies find the event content, quality and interactive format to be of a high calibre, relevant and of real value and benefit.
The wall caving is induced by mining the ore in controlled sequence, usually from hanging wall to footwall and from top to bottom. Sublevel caving is often used in conjunction with surface mining. Sublevel caving extracts the ore via sublevels, which are …
Monitoring Open Stope Caving at Goldex Mine * M.R. Hudyma . Laurentian University, Canada. P. Frenette Agnico-Eagle Mines, Canada. I. Leslie Engineering Seismology Group, Canada. Abstract Goldex is a sublevel open stoping min- near Val d'Or in Northe Western Quebec.
Sublevel caving (SLC) is a mass mining method based upon the utilisation of gravity ﬂow of blasted ore and caved waste rock . The method functions on the principle that ore is fragmented by blasting, while the overlying host rock fractures and caves under the action of mine …
Modelling of Caving and Deformation Mechanisms of the Hangingwall of the Printzsköld Orebody at Malmberget Mine . Abstract: Sublevel caving in Malmberget mine results in mining-induced surface deformation. One of the currently mined orebodies is the Printzsköld orebody.
Sublevel Caving . Sublevel Caving is one of many different methods for underground hard rock mining. It is a large-scale mining method suitable for large ore bodies with a steep dip and a rock mass with a host rock in the hanging wall will fracture under controlled conditions.
Oct 02, 2013· Source: Mining Magazine, September 2013 Sub-level caving is a highly efficient, top-down, underground bulk mining method. Recent developments in sub-level cave mining have advanced the understanding of the technique and its production performance, which allow it to now be considered as a highly viable alternative to open stoping and, in some cases, even to block […]
Oct 22, 2014· Sublevel stoping..Underground mining methods 1. Hassan Z. Harraz [email protected] 2014- 2015 This material is intended for use in lectures, presentations and as handouts to students, and is provided in Power point format so as to allow customization for the individual needs of course instructors.
Unlike other bottom-up caving methods (block cave, panel cave) sub-level cave mining is a top-down method and therefore does not require large initial investments in mining infrastructure prior to commencement. The Syama sub-level cave commenced on …
An overview of a wireless blasting system for use in sublevel caving operations that significantly reduces the risk posed to mine workers Sublevel cave (SLC) mining is breaking ore-bearing rock through blasting and drawing it out under the waste rock that is caving into the void created. SLC mines ...
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.
Block Caving. Block caving is an extreme case of sublevel caving in which instead of a back of ore 5 to 10 ft. thick, one 50 ft. thick is undermined and allowed to cave. The method is illustrated in Fig. 7.
"Hang-up blasting is a major issue for block and sub-level cave mines around the world," Melbourne said. "In fact, at any one time, up to 30% of all drawpoints can be unavailable due to oversize material. All current solutions are either high risk mining activities or are highly inefficient to implement."
G Newcombe, Newcrest Mining Limited, Australia 08:30 Early cave management at the Carrapateena sublevel cave R Hocking, G Balog, T Ormerod, H Pearce, OZ Minerals Limited, Australia 09:00 Design of a new layout for sublevel caving at depth C Quinteiro, …
Cave Mining – Today's Challenges. The industry perception is that sublevel caving is a "dirty mining method" (i.e. high dilution and low recovery). However, there were several successful sublevel cave mines executed in the past. The success of a sublevel cave mine is not by chance – they are engineered to perform.