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Resolution Copper is working with regulators and the community to develop one of the world''s largest untapped deposits of copper. The Resolution Copper deposit lies more than a mile beneath the surface and the most viable way to recover the Resolution resource is by going underground, using a process called block caving.
Bulkmining methods are a necessary component of economically mining massive, lowgrade porphyry copper, gold, molybdenum and diamond deposits, and block caving is the method of choice.
Mining will occur only on a large single level instead of scattered blocks on different levels as is the case with the existing El Teniente mine. The new mine will use panel caving and progressive sinking method for extracting ore. The ore will be brought to a new stockpile on the surface near the concentrator by a 2,134mm conveyer belt.
Block caving is a largescale underground mining method applicable to the extraction of lowgrade, massive ore bodies. With the amount of literature available on block caving this report identifies the need to provide a simple understanding of the process.
a| "This IC describes the development of blockcaving methods and practices by the Miami Copper Co. at the Miami mine in Gila County, Arizona. It is one of a series published by the Bureau of Mines on mining methods, practices, and costs in various mining districts of the United States."
this case, block caving gets the attention of mining engineers. At present, block caving has already got application in many mines across the world including America, Chile, South Africa, the Philippines, Canada, Australia, China, etc [3]. Among the 50 mines with block caving, Teniente mine in Chile has the largest production output of 140000t/d.
Sep 07, 2012· The new Block Caving Knowledge Center is situated at the Northparkes Mines in central western New South Wales, and will enable trainee engineer to practice new mining .
The first part of the plan is for traditional openpit mining to reach the deposits near the surface. Block caving, which has been well proven at mines around the world, may be the answer to reaching the deeper deposits as the second part of the extraction plan (for more on block caving.
Fitch Ratings said that the delay and higher than expected cost of Rio Tinto''s Oyu Tolgoi mine project highlights the risks associated with block caving, an underground hard rock mining method ...
Block 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.
Since Block Caving is a fairly new method of mining, do we know how many mines in the world are currently using block caving? Also, do we know how many future mines are developing this method? I know that Resolution Copper in Superior Arizona is working to start this up. Oyu Tolgoi will use this method with one of their ore deposits.
Block caving is an underground mining method that uses gravity to exploit massive, steeply dipping ore bodies located at depth. These ore bodies are generally low grade in nature and are too deep to be extracted through open pit mining. The technique is commonly used to extract low grade copper, coppergold, iron and molybdenum ores although ...
Block caving is an underground hard rock mining method that involves undermining an ore body, allowing it to progressively collapse under its own weight. It is the underground version of open pit mining. In block caving, a large section of rock is undercut, creating an artificial cavern that fills with its own rubble as it collapses.
The term ''block caving'' probably originated in the porphyry copper mines, where the area to be mined was divided into rectangular blocks that were mined in a checkerboard sequence with all the ore in a block being removed before an adjacent block was mined. This sequence of mining is .
Block caving is a gravitybased underground mining method that involves breaking up the rock mass located at depth into pieces. This method is particularly suitable for lowgrade minerals or with disseminated mineralization. "Block" refers to the mining layout, which divides the ore bodies into blocks and large sections. Caving of the block ...
Block caving is employed principally for mining lowgrade ores where the inevitable loss of some ore and some dilution with capping and wall rock are permissible and where mining must be done on a large scale and at a lower cost than can be obtained by the use of supportedstope or other selective mining .
Block Caving . Block caving is largescale mining method that allows for huge volumes of rock to be extracted efficiently. However, the development time before production starts is longer compared to other mining methods. By drawing rock from the extraction level in the lower part of the mine, a gap is created.
Copper and diamonds are the predominant commodities currently being mined by block caving. Shown here is a scan, developed using Geovia''s PCBC software, of the bottom of a kimberlite pipe at the Finsch diamond mine, displaying selected draw points and draw cones.
The San Manuel copper mine of SE Arizona provides an example of ground subsidence that accompanies block caving. When the ground comes tumbling down: Subsidence that accompanies block caving | eMagazine of the AZ Geological Survey
Rio Tinto Mine Delay Shows Block Caving, Copper Supply Risk. The delay and higher than expected cost of Rio Tinto''s Oyu Tolgoi mine project highlights the risks associated with block caving, an underground hard rock mining method, which could have implications for copper supply and pricing, says Fitch Ratings.
In underground mining, block caving is the only method with the costs comparable to surface mining methods, especially open pit mining. A switch from open pit mining to block caving mining could ...
Dec 24, 2013· This computer animation looks at how block caving is built and mined. Northparkes was the first mine in Australia to use the block cave mining process. xxxx.
Resolution Copper estimates the 64 billion mining project would run over 60 years. Investment. Through 2012 Resolution Copper had invested almost a billion dollars in the Superior project, and planned a 6 billion investment to develop the mine, if the Federal land exchange is approved.
Jul 10, 2018· In the right conditions, the advantages of block caving make it an alternative that is now being considered more often, such as at Seabridge''s KSM Project. Block cave mining is an underground mass mining method that allows for the bulk extraction of large, relatively lower grade, ore deposits with substantial vertical dimension.
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