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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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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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Cadia East Ensuring at least another 30 years mining at ...

• Australia's largest underground mine and first application of Panel Caving mining – Potentially >16Mtpa mining rate – 2 x 350m lift's – Multiple caving fronts Ridgeway 5.6 Mtpa Cadia Hill Pit 16 Mtpa Cadia East Pit Cadia East Underground, Project Decline Ridgeway Deeps, Block Caving

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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: 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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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 - 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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Mine can't shake off earthquakes | Central Western Daily ...

Mar 23, 2010· "The seismic event this morning was associated with the block caving mining process in the Ridgeway Deeps mine," he said. Mr Jones said block caving requires controlled fracturing of .

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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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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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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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Paper: Key geotechnical knowledge and practical mine ...

The success of that mine led to a significant expansion into block caving operations, first at Ridgeway Deeps, and then to the now established Cadia East operations. What makes Cadia unique is the high-stress, hard rock mining conditions combined with the ability to maximise investor returns through the use of very high lift heights at depths ...

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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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Parameters influencing full scale sublevel caving material ...

Parameters influencing full scale sublevel caving material recovery at the Ridgeway gold mine I.D. Bruntona,b,, S.J. Fraserc, J.H. Hodgkinsonc, P.C. Stewartb a Newcrest Mining Limited, Cadia Valley Operations, Cadia Road, South Orange, 2800, Australia b The University of Queensland, W.H. Bryan Mining and Geology Research Centre, Brisbane, Australia c CSIRO Exploration and Mining, .

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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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Chuquicamata underground mine design: the simplification ...

The ore handling system layout plays a fundamental role in cave mining projects, not only because it is one of the main drivers in the production capacity and reliability of the mining system, but also because it is a fundamental variable in the footprint's development time and cost (Paredes et al. 2016). In terms of ore handling system definition, the governing paradigm in Codelco's ...

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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 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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Block caving with Rio and NCM

review of block caving shows that Newcrest's Cadia East panel cave operation is materially better designed and pre-conditioned than Ridgeway block cave. The shortcomings of Ridgeway are well understood and have been comprehensively addressed in the vastly improved Cadia East design. Figure 1: Caving is the lowest cost underground mining method

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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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ridgeway deeps mine block caving pdf - crusherasia

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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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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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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Full-scale Flow Marker Experiments at the Ridgeway Deeps ...

Full-scale marker experiments at Cadia Valley underground operations have been ongoing for over 14 years. Initial marker experiments were undertaken in the Ridgeway sublevel cave (RW) (2002), and subsequently at Ridgeway Deeps (RWD) (2008) and Cadia East PC1 (CEPC1) (2012) block caves. Over 25 000 markers have been installed at the three caving operations to...