Sublevel caving - QueensMineDesignWiki

BLOCK ANd pANeL CAVING Block caving is an underground mining method that uses gravity to exploit massive, steeply dipping orebodies located at depth, particularly those with disseminated mineralisation or that are low-grade in nature, but too deep to be extracted using open pit methods. Block caving also depends on insitu stresses and

Determination of optimum drawpoint layout in block caving ...

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.

Underground Mining Methods — New Pacific Metals

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.

Block Caving - groundtruthtrekking.org

It is widely believed that surface mining is more productive than most underground mining methods, with the exception of block caving, which has a comparable rate of productivity. Related Posts Types of Polyamides and their Applications

Types of Mining Methods | Sell Side Handbook

Drill and blast mining methods permit a degree of flexibility during the course of mining and allow for changes in techniques with technical improvements in equipment and blasting techniques. Block cave mining allows very little freedom in change once the layout in …

Sandra's Cave Mining Handbook - Mining and Blasting

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 drift's and cross drifts, the pillars are robbed, and then the remaining stumps are ...

Block Caving – A Viable Alternative? | Golder

Capital-intensive operation. The block-cave mining method is capital intensive and can cost anywhere between $2 and $10 billion. While that is comparable to the cost of starting an open-pit mining ...

Block caving method - LinkedIn SlideShare

Block Cave Mining Techniques. The most commonly used cave mining technique is block caving. Block caving is a large-scale mining method that is particularly useful for mining low-grade or disseminated ore bodies which are at too great a depth to be exploited through open-cast mining.

(PDF) Open pit or block caving? A numerical ranking method ...

Block caving is a gravity-based underground mining method that involves breaking up the rock mass located at depth into pieces. This method is particularly suitable for low-grade 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 - Canadian Mining JournalCanadian Mining Journal

Underground Mining methods study guide by fransterz includes 16 questions covering vocabulary, terms and more. ... • Most popular underground mining method in us for non-coal operations • can be adapted to dipping seams (pitch mining) or very thick seams (bench mining) ... Block Caving • Low cost, high productivity

How Mining Works - Resolution Copper

Jul 10, 2018· 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. In block caving, a large section of ore is initially undercut by drilling and blasting, creating a large unsupported roof that will start to collapse under its own weight ...

Underground Block Caving: A Guide for Investors | INN

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.

Block Caving - groundtruthtrekking.org

The only operational block caving mine in Canada is New Gold's New Afton mine located in British Columbia. Open Pit Mining. Open pit mining method works best when the deposit is close to the surface as it is way more economical to use this method instead of underground mining. Open pit mining operations are the largest operations world-wide.

Cave Mining Techniques - Mining Information

Jul 14, 2014· Introduction The one u/g mining method that has the potential to rival surface mining in output and cost is block caving. Block caving is the mining method in which masses, panels, or blocks of ore are undercut to induce caving, permitting the broken ore to be drawn off below. If the deposit is overlain by capping or bounded by drawing the ore.

Major Mines & Projects | Argyle Mine

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

Sublevel caving | Britannica

Jul 25, 2018· 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.

Cave mining-thestateoftheart - SAIMM

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. In block caving, a large section of ore is initially undercut by drilling and blasting, creating a large unsupported roof that will start to collapse under its own weight ...

Inside block caving: the deep mining method of the future ...

Sublevel Caving Safety. Sublevel caving is a relatively safe mining method since the operations take place in small areas at a time and are highly mechanized. The uniformly distributed nature of generally 5mx3.7m sublevel nature of drifts aids in the safety of this mining method.

Underground Mining methods Flashcards | Quizlet

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.

Our operations | Northparkes

A look at the underground mining process The Resolution Copper deposit lies more than a mile beneath the surface. The most viable way to recover this ore body is by going underground, using a process called block caving. Block caving is a proven mining method using advanced technologies. Here's how it works. Ore, rock containing … Continued

Paper: Underground mining at Ekati and Diavik diamond mines

Cadia East deposit is a large underground mining operation using the panel caving method (Cadia East Project). The deposit is mined in a number of lifts each comprising multiple panels. Underground mining of the Ridgeway deposit commenced in 2002, with ore being supplied to the new 4 Mtpa Ridgeway concentrator adjacent to the Cadia concentrator.

Underground Mining Methods and Equipment

"[Block caving] is the lowest cost underground mining method available and is growing rapidly around the world and there is a significant shortage of people with skills in these areas ...

Block Caving - Mining Fundamentals

Jul 21, 2016· Block caving is a large-scale or bulk mining method that is highly productive, low in cost, and used primarily on massive deposits that must be mined underground. It is most applicable to weak or moderately strong ore bodies that readily break up when caved. Both block caving and longwall mining are widely used because of their high productivity.

Underground Mining Methods – EXCELLENCE IN MINING ...

Northparkes was the first mine in Australia to use the highly efficient block cave mining method, now used in several mines throughout the country. Block caving is a highly efficient mining method which relies on gravity and natural rock stresses to fragment and recover the ore.


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