Request full-text PDF. ... Fragmentation prediction and assessment at the ridgeway deeps and Cadia East cave operation. Jan 2016; ... The mine uses block caving for the extraction of the orebody ...
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Block cave fragmentation has been documented in the literature to have a significant impact on mine design, performance and downstream material handling and …
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PDF | Block caving is an important mining method for the future economic exploitation of large, low grade, steeply dipping orebodies. ... Ridgeway Deeps operation aiming to turn some of the cause ...
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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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Ridgeway Deeps (RWD) in Orange NSW Australia will be used as the example where innovative practices have assisted in establishing Newcrest's first Block Caving Operation. The Cave establishment phase including lateral development, Undercutting and Drawbell Construction impacts on cave construction time and the ability …
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ing services in block caving and sub-level caving methods. More recently he has been involved in block cave and sub level cave studies for Newcrest's Ridgeway and Telfer Projects, operational and study reviews for Northparkes block cave, a block cave assessment for Olympic Dam, due diligence review of the Didipio block
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mass. As stated by Laubscher [1] and Chitombo [2], block caving operations are now moving toward super-caves. Caving will stop if the undercut dimensions are insufficient for its initiation and propagation; in addition, much of the orebody will be lost, and additional costs must be incurred to re-induce caving.
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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 Ridgeway Deeps Lift 1 block cave operation was mined between 2007 and 2015 and was Newcrest's first block cave operation. The change to block caving was introduced after the identification that the grade profile for Ridgeway was declining to the point where subsequent SLC levels below the 5040 mRL were uneconomic.
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RIDGEWAY DEEPS & CADIA EAST. KSM PROPERTY. Cave Mines and Projects. EL TENIENTE. ANDINA. SALVADOR. SAN MANUEL. HENDERSON. ... Peru Cerro Verde Indonesia Cadia-Ridgeway Mine, New South Wales x USA Ajo, Arizona Indonesia Northparkes, New South Wales x ... Block Caving Cu-Au Porphyry Author: …
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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 …
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planning efforts relating to the current sub-level caving operation and the proposed future transition to block caving at a depth in excess of one kilometre are discussed. 1 Introduction The Perseverance mine is part of Leinster Nickel Operations (LNO), located in the Northern Goldfields of Western Australia.
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Contribute to jidafang2022/en development by creating an account on GitHub.
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1 SUBLEVEL CAVING (SLC) 1.1 Basic considerations Sublevel caving is a mass mining method based upon the utilization of gravity flow of blasted ore and caved waste rock (Kvapil, 1998). It relies on the principle that ore is fragmented by blasting while the overlying host rock fractures and caves under the action of mine induced stresses and
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sublevel caving method cost estimation pdf Mine process and mining in caving mine. and the deepest block cave in Australia. Ridgeway Deeps was . Get Price; Underground …
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Castro, R., 2004. The scaling of physical model flow results for full scale mine design in block caving. Thirteenth Annual JKMRC Postgraduate Conference and First JKMRC International Student Conference, Brisbane: 231-244. ... I., Sharrock, G. and Lett, J. (2012) Full scale near field flow behaviour at the Ridgeway Deeps Block Cave operation. In ...
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The back analysis of Newcrest Mining Limited's Ridgeway Deeps operation using the BCMSV enabled the phenomenon of pulses in the rate of seismic activity to be identified in the active region of ...
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PDF | Block caving is an important mining method for the future economic exploitation of large, low grade, steeply dipping orebodies. ... Ridgeway Deeps operation aiming to turn some of the cause ...
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The model is tested for a block-cave mine with 640 drawpoints to feed a processing plant for 15 years. The resulting NPV is 473M$ while the deviations from the ... (2016) performed a full-scale experiment in Ridgeway Deeps and Cadia East block caving mines in Australia. They used markers to quantify and assess the development and shape of the ...
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Block caving is an underground mining method that can provide high production capacities at low operating costs. This enables the profitable extraction of massive, low-grade …
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High production rates and low operating costs highlight block caving as one of the favorable underground mining methods. However, the uncertainties involved in the material flow make it complicated to optimize the production schedule for such operations. In this paper, a stochastic mixed-integer linear optimization model is proposed in order to …
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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 …
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Caving Geomechanics (UQ). His consulting, operational and research experience spans underground and surface mining in hard rock and coal. His last caving position was as Principal Geotechnical Engineer at Newcrest's Cadia East, Ridgeway Deeps, Ridgeway SLC and Telfer Mines over a 5 year period. His geotechnical
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1| Page Innovative Cave Establishment Practices at Ridgeway Deeps Geoff Dunstan Newcrest, Australia L. Popa Newcrest, Australia Abstract Underground bulk mining methods such as Block Caving (BC) and Panel Caving (PC) are increasingly regarded as low cost solutions to extracting large, low grade underground metalliferous orebodies. Significant …
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The authors would also like to acknowledge the support of Newcrest Mining Limited for providing access to historical data from the Ridgeway Deeps mine used as part of this research. A final acknowledgement should go to Francisco Gonzalez whose caving experience helped to shape some of the features of the BCMS visualizer.
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The Ridgeway deposit is a higher grade Au-rich alkalic porphyry deposit. Copper-gold bearing quartz veins are centered on small (50-100 m diameter) multiphase monzonitic …
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ridgeway deeps mine block caving pdf - Know More. block caving crushing plant - simonhairdressingcouk ridgeway deeps mine block caving pdf zenith hot sale mining crushers mainly include jaw crusher,cone crusher,impact crusher,mobile crusher for crushing stone Contact Supplier, block caving and primary crushing india...
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Key geotechnical knowledge and practical mine planning guidelines in deep, high-stress, hard rock conditions for block and panel cave mining.pdf Diego Ignacio Veliz Integrated simulation and optimisation tools for production scheduling using finite element analysis caving geomechanics simulation coupled with 3D cellular automata.pdf
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Ridgeway Deeps (RWD) in Orange NSW Australia will be used as the example where innovative practices have assisted in establishing Newcrest's first Block …
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Over two decades, block caving mining has developed the application of hydraulic fracturing as a preconditioning method. This study aims to estimate hydraulic fracturing costs in block caving operations and suggests the base case of specified costs based on the U.S. Energy Information Administration (EIA) report. Furthermore, it applies …
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