block cave mining process

Block caving: A new mining method arises

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

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Block Caving Process Animation - Mining Information

2010-6-4  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 over the undercut. The drawbells serve as a place for caving rock to fall into.

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Inside block caving: the deep mining method of the

2020-2-14  B lock caving is a mining system which involves undermining an ore body and then allowing it to collapse under its own weight, a process that opens access to deeper deposits. Professor Fidelis Suorineni of the Nazarbayev University School of

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Cave Mining Techniques

2012-7-6  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

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Block Cave Underground Mine

2020-10-21  Block cave mining is based on the principle that when a sufficiently large area of a block has been undercut by drilling and blasting, the overlying block of ore will start to cave under the influence of gravity At the start the cave will propagate vertically, while subsequent mining from the initial block will result in a lateral extension of the caved area.

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Ore Reserve estimation for Block Cave Mines Using

2016-8-25  Typical flow mechanisms in a block cave. (Diering 2007) The understanding and impact of these mechanisms dominates a large part of the dilution and ore reserve calculations in a block cave mine. The three primary ones are likely to be vertical mixing, rilling and erosion mechanisms.

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A MODEL FOR GRAVITY FLOW OF FRAGMENTED ROCK

2012-6-5  late Nineteenth Century (Brown, 2003). There are several different methods of cave mining, including block, panel, sublevel and inclined. This thesis focuses specifically on block/panel caving, in which an ore column of finite width, length and height is drawn from a

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Seismicity Induced by Cave Mining, Palabora Experience

Understanding of mode one seismic events is important for understanding the processes of the block cave mining. Mode one seismicity is a natural process indicating that the cave is progressing and is connected with rockmass fracturing in front of the undercut and propagating cave. The space and time distributions of mode one seismicity, as well as the changes of their source parameters with time, are

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The Block Cave Mining Method - UK Essays

2018-6-20  The Block Cave Mining Method. 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. Understanding a production process of a block cave mine is ...

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Block Caving Process Animation - Mining Information

2010-6-4  Block Caving Process Animation. This video describes the block caving process with 3D animation. 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 over

More

Inside block caving: the deep mining method of the

2020-2-24  Block caving could be “the mining system of the future,” according to Fidelis Suorineni. Block caving is a mining system which involves undermining an ore body and then allowing it to collapse under its own weight, a process that opens access to deeper deposits. Professor Fidelis Suorineni of the Nazarbayev University School of Mining

More

Block Cave Underground Mine

2020-10-21  The process of undercutting creates instability at the base of the block being caved. Block cave mining is based on the principle that when a sufficiently large area of a block has been undercut by drilling and blasting, the overlying block of ore will start to cave under the influence of gravity

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Ore Reserve estimation for Block Cave Mines Using

2016-8-25  The focus is specifically around block cave projects and mines as well as the specific “peculiarities” of block cave mining, which can make the ore reserve evaluation process more complicated. The broad areas covered are the effects of ore body geometry, mining geometry, material fragmentation and flow, economics and mining history/sequencing.

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An overview of block caving operation and available ...

2010-8-26  An overview of block caving operation and available methods for production scheduling of block cave mines Yashar Pourrahimian and Hooman Askari-Nasab Mining Optimization Laboratory (MOL) University of Alberta, Edmonton, Canada . Abstract Long-term mine scheduling is among one of the optimization problems. Block caving technique is a

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Block caving-induced strata movement and associated ...

2014-8-20  The block cave mining mechanism and associated subsidence present one of the most challenging engineering problems in rock mining. Although block caving has been in use for many years, there has been limited research on the impact caving angles have on surface settlement and failure profiles, specifically when associated with deep caves and surface propagation (i.e., not as part of

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Seismicity Induced by Cave Mining, Palabora Experience

block cave mining. “Induced Seismicity” (Knoll, 1992) is a collection of papers divided into three groups, mining induced seismicity, fluid induced seismicity and fundamentals of induced seismicity. Again there is no mention of seismicity induced or triggered by the cave mining methods. “Seismic Monitoring in Mines” (ed. Mendecki, 1997) is

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Draw Rate Management in Block Cave Production

2017-9-14  especially in the case of MILP problems. Mining optimization models available in the literature have been developed for block-cave mines, but they solve only a partial type of planning problem. The literature on draw rate models based on the production rate curve (PRC) for block-caving operations is relatively new.

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Our operations Northparkes

Our operations are made up of an underground block cave mine, a sub-level cave and an ore processing plant which produces copper concentrate for export. Northparkes is a copper and gold mine located 27 kilometres north-west of Parkes, in the Central West of New South Wales, Australia.

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Inside block caving: the deep mining method of the

2020-2-24  Block caving could be “the mining system of the future,” according to Fidelis Suorineni. Block caving is a mining system which involves undermining an ore body and then allowing it to collapse under its own weight, a process that opens access to deeper deposits. Professor Fidelis Suorineni of the Nazarbayev University School of Mining

More

LONG TERM PLANNING OF BLOCK CAVING OPERATIONS

2020-7-24  II LONG TERM PLANNING IN A BLOCK CAVE MINE 5 II. 1 Introduction 5 11.2 Block Cave Mining Method 6 11.3 Traditional Steps in Planning a Block Cave Mine 7 11.3.1 Resource and Rock Mass Models 9 11.3.2 Mining Unit - Draw Column 9 11.3.3 Mixing Process-Dilution 11 11.3.4 Draw control factor 14 11.3.5 Economic boundary 15 11.3.6 Undercut sequence 18

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An overview of block caving operation and available ...

2010-8-26  An overview of block caving operation and available methods for production scheduling of block cave mines Yashar Pourrahimian and Hooman Askari-Nasab Mining Optimization Laboratory (MOL) University of Alberta, Edmonton, Canada . Abstract Long-term mine scheduling is among one of the optimization problems. Block caving technique is a

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Block Caving Cu-Au Porphyry -

2020-3-25  UBC introduced web based Cave Mining Forum. Cave Mining Cu-Au Porphyry. There are over 45 cave mining projects in various stages of studies and development around the world. Cave mining methods will be the underground method of choice in the future. It is only relatively recent that this mass mining method, despite 70 years of use, has begun ...

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Draw Rate Management in Block Cave Production

2017-9-14  especially in the case of MILP problems. Mining optimization models available in the literature have been developed for block-cave mines, but they solve only a partial type of planning problem. The literature on draw rate models based on the production rate curve (PRC) for block-caving operations is relatively new.

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Petra Diamonds How are diamonds mined by Petra?

Petra utilises this mining method to supplement block caving, in order to provide production flexibility. For example, at the Finsch mine sub-level caving is being used as part of the mine’s expansion programme to maintain underground production levels during the transition from the Block 4 cave to the Block 5 cave.

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Palabora Mining Company Ltd

Palabora Mining Company operates a successful underground block-cave mine, producing 50,000 tonnes of copper ore per annum. Palabora's block-cave mine is a benchmark for integrated design. No other block-cave mine has been put into as

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Our operations Northparkes

Our operations are made up of an underground block cave mine, a sub-level cave and an ore processing plant which produces copper concentrate for export. Northparkes is a copper and gold mine located 27 kilometres north-west of Parkes, in the Central West of New South Wales, Australia.

More

Underground Mining Methods and Equipment

2020-8-25  1.6. Longwall Mining 1.7. Sublevel Caving 1.8. Block Caving 2. Underground Mining Machinery Glossary Bibliography Biographical Sketches Summary The first section gives an overview of underg round mining methods and practices as used commonly in underground mines, including classification of underground mining

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Underground Mine Development - International Mining

2011-12-1  The planned underground expansions to existing mines, as well as major new underground operations being looked at, means that achieving faster and more efficient development underground is as much at the fore as it has ever been. In this month’s im-mining ‘Spotlight Feature Article’, from the pages of the December 2011 issue of International Mining magazine, Editor Paul Moore looks ...

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mining and mines: Block Caving

2021-3-15  Block Caving. Block caving is an inexpensive bulk mining method where the ore is drawn by gravity and which is suitable for ore bodies which are low grade and are consistent in their grades. Depending on how the ore is broken there are three block caving

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Block Caving Cu-Au Porphyry -

2020-3-25  UBC introduced web based Cave Mining Forum. Cave Mining Cu-Au Porphyry. There are over 45 cave mining projects in various stages of studies and development around the world. Cave mining methods will be the underground method of choice in the future. It is only relatively recent that this mass mining method, despite 70 years of use, has begun ...

More

Predicting the Block Caving Behavior of Orebodies

2019-7-21  Predicting the Block Caving Behavior of Orebodies. Block caving is an efficient mass-production method for the underground mining of large orebodies. However, the block-caving method requires a substantial investment in developmental works, based on the assumption that the rock will cave. Efficient block

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Draw Rate Management in Block Cave Production

2017-9-14  especially in the case of MILP problems. Mining optimization models available in the literature have been developed for block-cave mines, but they solve only a partial type of planning problem. The literature on draw rate models based on the production rate curve (PRC) for block-caving operations is relatively new.

More

Petra Diamonds How are diamonds mined by Petra?

Petra utilises this mining method to supplement block caving, in order to provide production flexibility. For example, at the Finsch mine sub-level caving is being used as part of the mine’s expansion programme to maintain underground production levels during the transition from the Block 4 cave to the Block 5 cave.

More

Cave mining: 16 years after Laubscher's 1994 paper

2013-11-29  Abstract. This paper supplements a keynote address prepared for the 2010 Second International Symposium on Block and Sublevel Caving. The author gauges the cave mining industry's position (practice and theory) since the publication of what he considers a seminal paper on 'Cave mining – state of the art', hence '16 years after'.

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Palabora Mining Company Ltd

Palabora Mining Company operates a successful underground block-cave mine, producing 50,000 tonnes of copper ore per annum. Palabora's block-cave mine is a benchmark for integrated design. No other block-cave mine has been put into as

More

WebGen™ Simplified Bench Operations - Orica

Block Cave - Pre-Conditioning Reduce complexity of the drill and blast process, remove people from hazardous areas and complete mining cycle faster. ... Improve efficiencies in your mining process and enhance productivity for your operations. Download now.

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Underground Mine Development - International Mining

2011-12-1  The planned underground expansions to existing mines, as well as major new underground operations being looked at, means that achieving faster and more efficient development underground is as much at the fore as it has ever been. In this month’s im-mining ‘Spotlight Feature Article’, from the pages of the December 2011 issue of International Mining magazine, Editor Paul Moore looks ...

More

Dilution and ore recovery - QueensMineDesignWiki

2019-6-28  Figure 2: Mining block in an open pit visualizing internal and external dilution (Ebrahimi, 2013) Primary and Secondary Dilution. Estimating dilution prior to mining is a challenging task, demanding the use of an engineer’s best judgement to assess the feasibility and economic value of mining a block, stope, or deposit.

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