Mining Equipment And Technology Used In Block Caving

Additionally tongkuangyu improved its block caving processes and used more modern mining equipment than was used in the previous two lifts blastholes for undercutting and drawbellpreparation are now drilled using jumbos the blasted ore is transferred to the underground crushing station via 10 t electric lhds and then

Hydraulic fracturing is currently used at two block caving mines in australia and at several in chile mr van as was involved in all stages of the technology development at northparkes and his involvement and support were critical to the successful implementation of hydraulic fracturing at that mine and in large part to the increasing

Block caving is being looked to as one method of bulk mining to access these ores as it is recognised as one of the most economic underground mass mining methods to extract deep low grade

For block caving to be a viable option the orebody must be massive and well fractured this technique is therefore typically used on steeply dipping orebodies panel cave mining techniques a variation of block mining is panel mining which is a process that divides the ore into sections and extracts it in a similar fashion to block mining

Mining equipment and technology used in block caving tracing the evolutionary milestones in mining technology the paper attempts to provide a the shape of things to come in the equipment array for surface and underground mines by 2050 to cope with and for mass mining sublevel caving or block caving will be the predominant methods

sublevel caving block caving longwall mining is used in horizontal tabular deposits mainly coal while the others have applications in inclined or vertical massive deposits a lmost exclusively metallic or nonmetallic because the exploitation openings are intentionally destroyed in the progress of mining the caving class is truly

Hexrite was initially designed to be used in blockcave mines in the blockcaving mining method the orebody is undercut so the base of the orebody starts collapsing or caving due to the mass of overlying material the orebody subsides under gravity gathering at

Dec 12 2018 despite widespread use in copper mines block caving can be used in a variety of situations where lowgrade hightonnage deposits cannot be efficiently accessed using open pit methods mining giant rio tinto is currently reviewing a possible investment in block caving at the argyle diamond mine in western australia

The object of this handbook is to highlight factors which lead to problems in cave mining and to summarize the contents of the manual on block caving so as to provide a reference on all facets of cave mining the same format as the revised manual has been used so that the details of the subject can be referred to in the manual

Sublevel caving can be used in orebodies with very different properties and is an easy method to mechanize this method is normally used in massive steeplydipping orebodies with considerable strike length and usually has a high amount of dilution and low recoveries thus sublevel caving is usually used to mine lowgrade lowvalue orebodies

Oct 23 2014 outline of topic 7 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 evolution of the method condition deposit principles of the method methodology of block caving basic issues of geomechanical to the

Block caving ritchiewiki as a sublevel mining process block caving involves the controlled collapse of ore from under its own weight into chutes or equipment used conveyor crusher load more detailed

Block caving block caving is essentially the underground version of openpit mining its the only underground mining method that can reach similar production rates to surface mining operations up to over 100000 tonnes per day the method involves undermining an ore body then allowing it to collapse under its own weight

Mining equipment and technology used in block caving the new building blocks of block caving australian mining feb 21 2014 block caving is being looked to as one method of bulk mining to access these crcminings cave tracking technology uses 3d positioning systems to industry of the latest innovations in mining technology and equipment chat now

There are a number of established mines around the world that already use cave mining to successfully exploit ore bodies and a number of mine expansions in the pipeline the combination of high demand high metal prices and deeper deposits make cave mining the mining method of the future cave mining 2040 is shaping that future today

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 after the bottom of the block or panel is cut up into pillars by drifts and cross drifts the pillars are robbed and then the remaining stumps are

In one of the keynote presentations at the caving 2014 conference german flores from newcrest mining sounded a warning call that although block and panelcaving technology has achieved significant developments over the past 30 years the challenges ahead may require some new thinking

Bulk mining methods block caving is used to mine massive steeply dipping orebodies typically low grade with high friability an undercut with haulage access is driven under the orebody with drawbells excavated between the top of the haulage level and the bottom of the undercut the drawbells serve as a place for caving rock to fall into

In underground mining block caving is the only method with the costs comparable to surface mining methods especially open pit mining through to new equipment and technology implementation

112 history of block caving late 19th century precursor to modern block caving developed in the pewabic iron ore mine michigan usa early 20th century the block caving method developed in the usa for iron ore and then copper mining in the western states 1920s block caving

2010 new approach for rapid preparation of block caving mines mining technology vol 119 block and sublevel caving pp 162167

Jun 15 2018 prof gideon chitombo mining3 technology leader cave mining cave mining and deep exploration drilling are the future of the mining industry as surface orebodies become scarcer and discoveries at depth more common effective and efficient ways of accessing orebodies below depths of 500 m need to be a key focus for the mining industry

Block caving is being looked to as one method of bulk mining to access these ores as it is recognised as one of the most economic underground mass mining methods to extract deep low grade

The term block caving is used for all types of gravity caving methods there are three major systems of block caving and they are differentiated by the type of production equipment used 1 the first system based on the original block cave system is the grizzly or gravity system and is a full gravity system wherein the ore from the

The term block caving is used for all types of gravity caving methods there are three major systems of block caving and they are differentiated by the type of production equipment used 1 the first system based on the original block cave system is the grizzly or gravity system and is a full gravity system wherein the ore from the

Block caving block caving is essentially the underground version of openpit mining its the only underground mining method that can reach similar production rates to surface mining operations up to over 100000 tonnes per day the method involves undermining an ore body then allowing it to collapse under its own weight