Block Caving Method Of Mining

Block Caving - groundtruthtrekking.org

Dec 21, 2012 · 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

Block caving: A new mining method arises |

Jul 25, 2018 · Block caving is a new alternative method of developing new mines or extending the operation of open pits. 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.

Block caving method - SlideShare

Jul 14, 2014 · 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. This method is unlike sublevel caving, in that both the ore and the rock are normally involved in the caving.

Atlas Copco- Block Caving Mining Method - YouTube

Feb 10, 2018 · Black Diamond Drilling Services AustraliaDatabase

Cave Mining Techniques

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. This mining technique gets its name from the layout of the mine which divides the ore into large sections or

Mining Methods: Block Caving | Geology for Investors

Mar 15, 2017 · Block (gravity) caving is a bulk underground mining method, which allows large low-grade deposits to be mined underground. This method involves undermining the orebody to make it collapse under its own weight into a series of

8.4.2a Block Caving | ABC 123: Testing Site / Course

8.4.2a Block Caving. This method, which was developed in the U.S. after WW I, is well suited for mining in weak orebodies. Panels or blocks of ore are undercut. Once undercut, the weak orebody begins to cave under its own weight. The caved ore is drawn off through draw points.

Block caving mining method with Elfen software, explained ...

Block caving is a mining method that relies upon natural forces to break the rock. The cave is initiated by an undercut where a large area beneath the mining block is removed; gravity induced stresses then develop within the rock, causing it to fracture. The fracturing process is progressive and affects the entire rock mass overlying the undercut.

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

As block caving is the only underground method that can offer comparable open-pit production rates and operating costs, the technique is set for a strong future on the mining stage. AusProof is celebrating 25 years of business in Australia in 2019.

Block caving - Canadian Mining Journal

Dec 01, 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 ...

THE OPTIMAL BLOCK SIZE IN THE BLOCK CAVING MINING

In classification of underground mining methods, caving methods are regarded as high production methods. These techniques are usually very costly and need great preparation. However, the high production rate of these methods, make them cost-effective . The

Cave Mining Techniques

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. This mining technique gets its name from the layout of the mine which divides the ore into large sections or

Block Cave Underground Mine

6 What and Why Block Caving? What : Block (gravity) caving is a bulk underground mining method, which allows large low-grade deposits to be mined underground. This method involves undermining the orebody to make it collapse under its own weight into a series of chambers from which the ore extracted.

Benchmark testing for block cave mining - amcconsultants

The use of block caving to mine deep, massive, low-grade ore bodies is gaining increasing attention from the mining industry given its merits in terms of safety, tonnage produced and costs that can match those of open-pit operations.

Block Caving : mining

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.

Caving Underground Mining Methods (longwall, Sublevel ...

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.

What every mining professional needs to know about block ...

Oct 01, 2020 · The method is an attractive alternative when planning to develop a new mine, or to extend the life of an open pit operation. More and more mining companies are exploring block caving as it becomes increasingly difficult to find high quality orebodies close to the earth’s surface.

(PDF) Block caving - ResearchGate

Initial capital investment for the mining methods ranged from $77,200,000 for chamber and pillar, to $122,872,000 for block caving, using LHD's. Mining costs, including all direct, indirect and ...

Block Caving: Mining Specialization | E & MJ

Block caving offers the potential for high-volume, low-cost production usually, although not always, from low-grade deposits that could not be mined profitably by other methods. As a technique, its successful application relies on a geological endowment that is structurally favorable, backed by the substantial financial resources needed in ...

Block Caving - Mining Fundamentals

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.

The Block Cave Mining Method - UKEssays

Block caving is a large-scale underground mining method applicable to the extraction of low-grade, 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.

Block Caving – A Viable Alternative? | Golder

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 ...

US8820847B2 - Block caving method - Google Patents

A method of block cave mining comprising excavating undercut tunnels ( 21 ) at an undercut level; drilling undercut blast holes ( 25 ) through the undercut tunnel roofs and setting and detonating explosive charges in those holes to blast rock above the undercut tunnels to initiate the formation of broken rock caverns ( 26 ) above the undercut tunnels ( 21 ); excavating extraction level tunnels ...

Why BLOCK CAVING is an economically viable option for the ...

Sep 02, 2021 · An insight on block caving mining method by David Sprott, Principal and Senior Mining Engineer based in Vancouver, British Columbia.. When planning to develop a new mine, or to extend the life of an open pit operation, mine planners have an alternative mining

(PDF) Block caving - ResearchGate

Initial capital investment for the mining methods ranged from $77,200,000 for chamber and pillar, to $122,872,000 for block caving, using LHD's. Mining costs, including all direct, indirect and ...

Benchmark testing for block cave mining - amcconsultants

The use of block caving to mine deep, massive, low-grade ore bodies is gaining increasing attention from the mining industry given its merits in terms of safety, tonnage produced and costs that can match those of open-pit operations.

Caving Mining Method Classification and Characteristics

Aug 03, 2020 · Characteristics. (1) Caving mining method no longer divides the ore block into ore rooms and pillars, but takes the whole ore block as a stoping unit, and carries out continuous single-step stoping according to a certain sequence. (2) In the stoping process, the surrounding rocks are naturally or forcibly caved, and the ore is drawn in direct ...

Types of Underground Mining Method Comparison

Mar 16, 2017 · 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. In a discussion of these methods, three things must be borne in mind ...

Underground hard-rock mining - Wikipedia

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.

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

Block caving is a capital-intensive mining method, requiring significant initial investment early in the mine life for infrastructure and primary development. Once in place, the method’s high ...

Newcrest Mining Limited - Red Chris Block Cave PFS ...

Oct 12, 2021 · Based on the depth, size, grade and existing site production rate block caving has been deemed the most appropriate mining method by the Study and supported via independent reviews.

4.3.2: Underground Mining Methods | ABC 123: Testing Site ...

Caving methods. Caving methods include block caving, sublevel caving, and longwall mining.For emphasis, allow me to repeat what I said earlier: caving methods are used in settings where the ore or the host rock is so weak that it cannot support its own weight for any period of time; the methods only work if the rock or the ore will readily cave under its own weight.

Newcrest Mining Limited – Red Chris Block Cave PFS ...

Oct 11, 2021 · Mining Method. Various mining methods have been considered for the extraction of the East Zone resources. Based on the depth, size, grade and existing site production rate block caving has been deemed the most appropriate mining method by

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