Underground Mining Methods presents the latest principles and techniques in use today Reflecting the international and diverse nature of the industry, a series of mining case studies is presented covering the commodity range from iron ore to diamonds extracted by operations located in all corners of the world Industry experts have contributed 77 chapters
The main advantage of this method is that Sublevel Caving is a low cost method so it means that the company saves money for the operation and can patch our main >>Chat Online; sublevel caving method cost estimation pdf - BINQ Mining
With the increased volume of ore per drilled meter, the overall productivity is significantly increased Also, the controlled amount of deviation leads to a more homogeneous fragmentation which increases the overall throughput of the whole mining process This is particularly beneficial for large-scale mining methods such as sub-level caving
Method of underground mining sublevel caving on tamakaimoana ore, including the sinking of sublevel workings, layer-by-layer breaking of ore on potatah on tamakaimoana ore and partial release of ore after blasting each layer through the end sublevel generation, the simultaneous dosed ore transport horizon floor, characterized in that a partial .
Proper fragmentation and blasting efficiency is evaluated by measuring the percentage of muck which is able to pass the designated blast size 3 Description of sublevel caving method – An underground mining method used in large, steeply dipping orebodies where the wall rock is of an incompetent nature
Mining by Sublevel Caving In sublevel caving, relatively thin blocks of ore are caused to cave by successively undermining small panels The ore body is developed by a series of sublevels usually spaced at vertical intervals of 18 to 25 or 30 feet (more recently, intervals of 50 feet or more have been
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
Mining Methods Block Caving; Open Pit Mining; Stoping; Sub-level Caving; Surface Mining; Underground Coal; Case Studies; Contact; Schedule Demo Sub-level Caving Industry leading optimisation tools for sub-level caving mining operations Improve Profit by 20% Increase profit by 10% to 20% over your current mining operations
Jun 14, 2019· Mining methods Sublevel caving There are several variants of the sublevel caving mining method among which variant applied in Kiruna mine in Sweden is best known This mining method can be applied to numerous types of ore bodies with inclination from horizontal to vertical If ore body is narrow its inclination should be steep in order to apply .
ON BLOCK AND SUBLEVEL CAVING 15 17 October 2018 | Vancouver Convention Centre | Vancouver, Canada The growing popularity of caving methods around the world is largely due to the very low production cost and the intrinsic safety associated with the mining approach It is often the only viable mining method for some of the
This method is usually considered as an alternate to sublevel caving when a lower dilution method is needed and where the rock is fairly competent The production for a mine using sublevel stoping can range from 15- 40 tons/employee-shift, while one stope can produce greater than 25000 tons per month
Three principal underground mining methods: open benching, sublevel caving and incline cave mining were implemented at the Ekati mine Diavik Diamond Mine started open pit production in 2003 By 2005, underground development had commenced with plans to mine the A154 and A418 pipes using backfill methods
An overview of a wireless blasting system for use in sublevel caving operations that significantly reduces the risk posed to mine workers S ublevel 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 have the most intensive blasting process of all the mining methods, as generally one or two .
Sublevel stoping: configuration method in stopes where the ore is detonated by drilling a fan or parallel; large part of the ore is removed from the stope as it is being detonated, leaving open stope
Dec 01, 2016· 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
Stull stoping is a form of stoping used in hardrock mining that uses systematic or random timbering ("stulls") placed between the foot and hanging wall of the vein The method requires that the hanging wall and often the footwall be of competent rock as the stulls provide the only artificial support
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 11 Classification of Underground Mining Methods
Oct 22, 2014· Sublevel stopingUnderground 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
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,
Caving Methods of Mining There are three distinctive methods of working large deposits that involve, in some way, the factor of caving Slightly different names are in use, but those that are simple as well as descriptive are top slicing, sublevel caving, and block caving
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 ,
This characteristic interplay of forces can create suitable conditions for sublevel caving even at greater mining depths below ground level The formulae quoted above for the approximate calculation of the parameters of sublevel caving or front caving can be applied for mining descending from foot wall to hanging or vice versa
Sub-level caving also allows for a slightly more selective extraction of the orebody than is attainable through block or panel caving Production rates achieved in sub-level caving operations are typically lower than for block caves but higher than for stoping methods” CAVING requIremeNts Caving is a non-selective, bulk mining method
Block Caving Block caving is essentially the underground version of open-pit mining It’s the only underground mining method that can reach similar production rates to surface mining operations, up to over 100,000 tonnes per day The method involves undermining an ore body, then allowing it to collapse under its own weight
A mining method involving overhand, underhand, and shrinkage stoping Its characteristic feature is the use of sublevels The sublevels are worked simultaneously, the lowest on a given block being farthest advanced and the subs above following one another at short intervals The uppermost sublevel underneath the cover is partly caved
Longwall Longwall in coal Longwall in Hard Rock Sublevel Caving Characteristics of the ore body and mining method Development Production Equipments Used Block Caving Introduction Historical .
Oct 23, 2014· Caving Underground Mining Methods (longwall, Sublevel caving, & Block caving) 1 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
Jun 25, 2010· Sublevel caving is usually carried out when mining of the orebody through an open pit method is no longer economically feasible Mining now ,
Oct 25, 2017· The loss and dilution of ore by sublevel caving mining method is influenced by gravity flow principles of caved granular materials (rocks) Gravity flow of ,