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Block Caving: Mining Specialization | E & MJ

With its production level at a depth of 1,050 m, Newcrest Mining developed Ridgeway Deeps beneath the existing sub-level caving mine. The transition took place in 2009, although as a 2012 analysis note from Credit Suisse suggested, the move here did not go completely to plan. "The caving rate and fragmentation is in line with modeled projections.

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Block Caving Cu-Au Porphyry

Peru Cerro Verde Indonesia Cadia-Ridgeway Mine, New South Wales x USA Ajo, Arizona Indonesia Northparkes, New South Wales x ... RIDGEWAY DEEPS & CADIA EAST. KSM PROPERTY. Cave Mines – Cu Au Porphyry. ... Block Caving Cu-Au Porphyry Author: Jarek Jakubec Keywords: Block Caving, Mining, Copper, Gold, Prophyry ...

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Northparkes Mines A century of mining together

Block caving relies on gravity and natural rock stresses to fragment and recover the ore, using minimal explosives. Block caving In 2015 our E48 Lift 1 block cave mine became the world's most automated underground mine with 100% automated loaders. The driver-less loaders run themselves – moving and dumping theore. 100% automatedmining

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Block Caving And Primary Crushing Mtm Crusher

Block Caving . Block caving is large-scale 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.

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Block Caving - groundtruthtrekking

Block Caving and Pebble Mine Block caving has been proposed for a section of the proposed Pebble Mine in southern Alaska to excavate a portion of one of the world's largest gold, copper, and molybdenum deposits. Part of the Pebble deposit is buried roughly 1,000 to 7,000 feet underground.

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What makes Newcrest different

Ridgeway Sublevel Cave 2009 - 2016 Ridgeway Deeps Block Cave 2012 + Cadia East Block Cave Ridgeway sublevel cave ~A$11/t 2 ore mined Ridgeway Deeps Block Cave ~A$7/t ore mined Cadia East Block Cave ~A$6/t ore mined 1 Historical ore reserve and mineral resource figures sourced from Newcrest annual reports from 2000 to 2016.

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SEG Distinguished Lecture

•Ridgeway – 500 m deep – sublevel cave •Cadia East – >200 m deep ... Panel caving 1898 First Block Cave Pewabic Mine (Iron Ore) 1970s &1980s 1980s to 2010 2010 -2020 ... NEXT PANEL UNDERCUT ADVANCE AIRGAP OREBODY Sublevel Stoping (SLS) Sublevel Caving (SLC) Block Caving (BC) Panel Caving (PC) ~50% Lower Capital Costs Mining cost ...

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Block Caving And Primary Crushing

ridgeway deeps mine block caving pdf. block caving and primary crushing ridgeway deeps mine block caving pdf... Block and Sublevel Caving REGISTRATION BROCHURE Key Dates ... primary crusher used in underground metal mine Cadia East ...

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mining in akorrokki ghana,rock crusher mobel qatar

Ridgeway Deeps Mine Block Caving Pdf. Ridgeway Deeps Mine Block Caving Pdf 6 november 2013 page 1 4 900 cone crusher a study of gravity flow based on the upside autocad block quarry equipment building a crusher in caving mine cadia east underground gold and copper mine, new cheep cinder ...

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The Effects of Faults on the Mechanics of Cave Propagation ...

My research aims to further the understanding of the mechanics driving the caving process with particular focus on how large fault structures are influencing caving. I will be back analysing how the Ridgeway Deeps block cave has evolved using fully-immersive 3D virtual reality to analyse mine evolution, closely linked to time.

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Block Caving - groundtruthtrekking

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.

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Block Caving at the Pebble Mine

deep to mine economically as an open pit.1 The Pebble Limited Partnership has proposed to mine Pebble East using the underground block caving method, which is the cheapest way to mine underground (Figure 2). It allows ore – economically valuable rock -- to collapse under its own weight in a controlled fashion. A series of haulage tunnels would be

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Seventh International Conference & Exhibition on Mass ...

Insights from an analysis of the Ridgeway Deeps block cave mine are discussed in this paper. INTRODUCTION . Historically, Block-Cave mining was focussed on orebodies with poor rock-mass characteristics (e.g. Henderson, Shabaniesuch that the mineralized zone to be extracted was of lesser competency than the ) surrounding wall-rocks.

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The Truth is Stranger than Fiction – the Story of Ridgeway ...

In June 2007, approval was granted for the development of a block cave (BC) operation to extract the ore reserve situated immediately below the existing SLC operations, Ridgeway Deeps. The BC was designed at approximately 6 Mt/a to match the concentrator and a systematic improvement process through the entire underground system again saw ...

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block caving and primary crushing india

ridgeway deeps mine block caving pdf. HOME>>Product>>ridgeway deeps mine block caving pdf. The Effects of Faults on the Mechanics of Cave Propagation . My research aims to further the understanding of the mechanics driving the caving process with particular focus on how large fault structures are influencing caving. read more.

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(PDF) Investigating Block Caving Geomechanics Using ...

Jun 29, 2015· Block caving is an underground mining method that enables profitable extraction of massive, low-grade orebodies, provided orebody geometry, size and competence (quality) favors caving.

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Microseismic analysis to identify the caving front ...

Block caving is an underground mining method that approaches the ore body from beneath the deposit. As material Case Study ESG Solutions 20 Hyperion Court, Kingston, ON, Canada K7K 7K2 Tel: +1.613.548.8287 Fax: +1.613.548.8917 [email protected] Fig. 1: Cave front at the Ridgeway mine eventually broke through to the ...

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Block Caving And Primary Crushing

ridgeway deeps mine block caving pdf. block caving and primary crushing ridgeway deeps mine block caving pdf... Block and Sublevel Caving REGISTRATION BROCHURE Key Dates ... primary crusher used in underground metal mine Cadia East ...

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What makes Newcrest different

Ridgeway Sublevel Cave 2009 - 2016 Ridgeway Deeps Block Cave 2012 + Cadia East Block Cave Ridgeway sublevel cave ~A$11/t 2 ore mined Ridgeway Deeps Block Cave ~A$7/t ore mined Cadia East Block Cave ~A$6/t ore mined 1 Historical ore reserve and mineral resource figures sourced from Newcrest annual reports from 2000 to 2016.

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Underground mining (hard rock) - Wikipedia

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 .

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Ridgeway Gold and Copper Mine, New South Wales - Mining ...

The Newcrest board approved development of the Ridgeway Deeps block cave in June 2007. The Ridgeway Deeps block cave project involved development of resources below the Ridgeway Underground mine at a depth of 300m to about 1,100m. It is the first natural caving operation and the deepest block cave in Australia.

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ridgeway deeps mine block caving pdf

ridgeway deeps mine block caving pdf. Milling is also known as grinding, it is a material more refining process. A sharp object works by concentrating forces which creates a high pressure due to the very ...

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Block caving - QueensMineDesignWiki

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, copper-gold, iron and molybdenum ores although ...

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Investigation report into the death of Lee Peters at ...

cannon), and a mine wall at the Ridgeway Mine, Cadia Valley Operations, Cadia, NSW. The incident occurred about 1 km underground in an extraction drive (roadway used to extract ore). The pinch point was created when fragmented rock flowed out of a blocked draw point and contacted the

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Developing the Ridgeway Deeps Project with an Operations ...

Ridgeway Deeps is a block cave (BC) located down dip of the operating Ridgeway sublevel cave (SLC) mine. The BC is located approximately 210 m vertically below the lowest SLC level and approximately 1100 m below surface. Due to the mine layout containing a number of common pieces of key infrastructure the activities of both were interlinked.

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Underground mining (hard rock) - Wikipedia

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 .

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Ridgeway | | MiningLink - The largest & most visited ...

The Ridgeway mine is worked by means of a block and panel caving method of underground mining. Ridgeway Mine is now known as Ridgeway Deeps Mine Mining at the Ridgeway underground mine has undergone transition to the Ridgeway Deeps deposit. Ridgeway Deeps is located below the original Ridgeway gold deposit that was initially exploited.

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Ridgeway gold mine Report | Wood Mackenzie

The mine is undergoing a transition to block caving which will see production levels reach 6Mt/a ore by 2012. In October 2012 Newcrest indicated in a corporate presentation that ore feed from Ridgeway underground mine will cease in 2015 with the depletion of Lift 1.

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Design rules for avoiding draw horizon damage in deep ...

damage in deep level block caves by R.J. Butcher* Synopsis Deep level block caving as a mining method is becoming more popular due to the fact that it is the lowest cost per ton underground extraction system. However, many block caves do not achieve their full potential due to .

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Major Mines & Projects | Cadia Valley Mine

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.

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