ridgeway deeps mine block caving pdf philippines

Yokogawa Mining and Metals Processing Capability

Hill open pit mine and the Cadia East and Ridgeway underground min These are all large scale mining operations using either block and panel caving or open pit mining methods At CVO Newcrest produces gold doré from a gravity circuit and gold-rich copper concentrates from a flotation circuit...

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UNDERGROUND DEVELOPMENT

underground block caving operation GEORGE FISHER MINE QLD Xstrata Macmahon was retained to undertake expansion works at the George Fisher Mine with the scope encompassing all aspects of development in addition to vertical development solutions of shaft sinking and the raiseboring of up to four shafts Macmahon was...

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Key geotechnical knowledge and practical mine planning

of the Ridgeway sublevel cave 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...

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Mining Methods Block Caving Geology for Investors

Nov 21 2019 0183 32 Block-caving copper mining methods and costs at the Miami mine Miami Copper Company Gila County Arizona 1965 Hardwick W R US Dept of the Interior Bureau of Mines PDF Empirical investigation and characterization of surface subsidence related...

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Porphyry copper deposit

Porphyry copper deposits are copper ore bodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the deposit itself Predating or associated with those fluids are vertical dikes of porphyritic intrusive rocks from which this deposit type derives its name In later stages circulating meteoric fluids may interact with the magmatic...

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Major Mines Projects Ridgeway Mine

Jun 10 2019 0183 32 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 The upper portion of the Ridgeway deposit has been mined using sub-level caving SLC...

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Production Scheduling with Horizontal Mixing Simulation in

21 Production scheduling optimization in block caving Mine planning optimization for both open pit and underground mining has been a focus of many studi For block-cave mining researchers have mostly used mixed-integer linear programming MILP also there are some models with application of Linear programming LP and quadratic...

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UNIVERSIDAD DE CHILE FACULTAD DE CIENCIAS FÍSICAS Y

En sistemas mineros como Block y Panel Caving es extremadamente importante realizar la tronadura de bateas de forma efectiva Existen importantes beneficios en productividad si la misma se lleva a cabo en una sola fase también llamada en un disparo Además la...

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Library AIME

The AIME digital library contains nearly 550 historial technical documents that were converted to searchable PDF format from 2008-2012 thanks to the James Douglas Library Fund income These archives are now accessable free to members of the 4 AIME Societies all over the world via links on their Member Only webpag...

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Application of Tunnel Boring Machines in Underground Mine

a block caving operation with modified stope design and belt conveyor ore haulage As shown in Figure 1 the mine development plan called for approximately 12 800 m of drifting in two levels After a detailed trade-off study the mine elected to use a TBM for all development work Figure 1 TBM tunneling route...

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Analysis of options of production and access ways in

The deep mines are generally of medium to high diving bodies high as the mines of Kiruna Palabora Olympic Dam and El Teniente The mining methods adopted by them sublevel caving block caving and sublevel stoping are indicated for mines with potential to reach great depths and high dives as shown in Table II...

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For personal use only

Ore was sourced from the final sublevel cave horizons of Ridgeway and Ridgeway Deeps block cave Mining from the sublevel cave is expected to be completed in the March 2010 quarter Ridgeway unit cash costs declined due to higher by-product credits as a result of increased copper production and higher copper prices accentuated by...

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Surface Subsidence Prediction Method for Coal Mines with

Overburden conditions consisting of ultrathick and hard stratum UTHS are widespread in China and other countries but existing surface subsidence prediction methods ignore the strong impact of UTHS on surface subsidence They are thus not applicable for surface subsidence prediction for coal mining with the presence of UTHS We conducted actual measurements of surface and UTHS subsidence in...

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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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What every mining professional needs to know about block

There are a number of solutions developed for caving to design model evaluate block caving and sub-level caving projects including Location and footprint of the caving mine Analytics and simulations can help determine caving method and extraction points can...

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Open Pits Going Underground

Section through proposed skouries open pit and cave mine 2 MRMR modelling for Skouries gold/copper project B to 200 m then by sub-level and by block caving at depths to around 1000 m Two main rock types are present a relatively Durban Deep Gold Mine in South Africa and Shabanie Mine...

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Seven trends that will shape the future of mining and

Dec 17 2020 0183 32 The mining and metals industry is recovering from one of its most difficult periods in decades - and it now has to contend with a rapidly changing world Here are seven factors that will determine which companies will prosper in the coming years...

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Interactive map of mineral resources and mines across the

The US Geological Survey USGS Mineral Resources Data System catalogs information about mineral resources around the United States and the world Using the map tool users can zoom in to obtain reports and data on past and present mines mine prospects and processing plants All of the data can be downloaded for further use and analysis...

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Ridgeway Deeps Development Project Ausenco

The new block cave was located below the sub-level cave mining with all personnel plant and equipment required to be transported via an eight kilometre decline through the operating mine All connections to existing infrastructure had to be co-ordinated to suit the existing mine shutdown schedule...

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3 Technologies in Exploration Mining and Processing

In longwall mining operations are concentrated along face from 250 meters to 350 meters wide The height of extraction is usually the thickness of the coal seam The length of the longwall block is about 3 000 meters to 5 000 meters In a 3 meter thick coal seam the amount of coal in place in a block is six to seven million tons...

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Geotechnical considerations in underground mines

Geotechnical Considerations in Underground Mining/Department of Industry and Resources Guideline Document No ZME723QT 10 INTRODUCTION The potentially hazardous nature of underground mining requires the application of sound geotechnical engineering practice to determine the ground conditions the ground support and reinforcement requirements as well as the size shape and...

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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 collaps...

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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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UNIVERSIDAD DE CHILE FACULTAD DE CIENCIAS FÍSICAS Y

implementation of cave back is based on in situ mine observation porosity variable in height has 231 Ridgeway deeps investigación de trazadores principales del método de Block Caving es el flujo de material fragmentado Este concepto incide en los aspectos de diseño operacional y...

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SEG Distinguished Lecture

Evolution of Cave mining Courtesy of Chitombo 2011 Grizzly and slusher systems Weak rocks and shallow depths Contemporary caves Strong rocks at moderate depths Emergence of Super-caves Massive footprints Lower grades Deep deposits Panel caving 1898 First Block Cave Pewabic Mine Iron Ore 1970s 1980s 1980s to 2010 2010 -2020 Beyond Super-...

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NEWCREST INVESTOR DAY 2018 Exploration edge

Caving Technology gives us a deeper search space 2000 - 2010 Ridgeway Sublevel Caving 2005 onwards Telfer Sublevel Caving 2009 - 2016 Ridgeway Deeps Block Cave 2012 onwards Cadia East Large caving operation Future Golpu Block Caves...

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What makes Newcrest different

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 2 Total mining costs includes all underground mining crushing conveying to surface and underground maintenance Note does not include any surface...

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OZ MINERALS 2011 FIRST QUARTER REPORT

Apr 14 2011 0183 32 GLOBAL BLOCK CAVES Cu/Au grades and relative deposit size global block caves Mt Cadia East Oyu-Tolgoi Hugo North Lift Ridgeway Deeps Carrapateena Wafi-Golpu Bingham Canyon NE mine Northparkes Lift 1 Northparkes E48 Grasberg IOZ Bingham Canyon SE mine Northparkes Lift 2 Grasberg DOZ Skouries Grasberg GBC Red Chris 000 025 050 075 100 125...

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Types of Retaining Walls

A slurry wall refers to the method of construction Specifically the digging of a deep trench with a special bucket and crane As the trench becomes deeper the soil is prevented from collapsing into the trench by keeping the hole filled with a slurry This slurry is a mixture of...

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Block Caving Cu

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...

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