Ridgeway Ridgeway Gold Mine Ridgeway Deeps SEE Ridgeway Deeps Statement of Environmental Effects Ridgeway EIS Ridgeway Project Environmental Impact Statement ... Block caving A method of underground mining that involves fracturing ore and host rock under controlled conditions, causing the ore to break or cave under its own
6 What and Why Block Caving? What : Block (gravity) caving is a bulk underground mining method, which allows large lowgrade deposits to be mined underground. This method involves undermining the orebody to make it collapse under its own weight into a series of chambers from which the ore extracted.
Field validation of estimated primary fragment size distributions in a block cave mine The Journal of the Southern African Institute of Mining and Metallurgy VOLUME 119 MAY run (Len_run), the core diameter (Dia), the cumulative length of recovered core (Len_Rec), the cumulative length of whole core pieces longer than twice the core diameter (Len_RQD), the
Block Caving Gold Mine Specialist Newcrest Mining Enters . best practice underground block cave mining at the "tier one" Cadia East copper gold porphyry mine in New South Wales, Australia, makes Newcrest a most suitable long term investor in . Get Price; Oyu Tolgoi Phase 2 .
Block Caving Mining Specialization E MJ. According to that success led to Rio Tinto adopting Automine for its Argyle block cave Newcrest also uses it at its Ridgeway Deeps mine while has delivered 14 LH517 LHDs all equipped for autonomous operation for Cadia East Meanwhile Northparkes reliance on its surface operated LHDs is continuing to pay off The mine
Ridgeway Deeps Free download as PDF File (.pdf), Text File (.txt) or read online for free. 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 technological advancements in the last few decades have allowed the appliion of Caving at ...
With its production level at a depth of 1,050 m, Newcrest Mining developed Ridgeway Deeps beneath the existing sublevel 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 Cadia East mine, which consists of two large block caves, became the sole feed source for the Ridgeway Concentrator in March 2016. The Cadia East ore has a higher Bond ball mill Work Index (BWi) and lower A*b than ore from the Ridgeway mine or Cadia Hill open cut.
• Australia's largest underground mine and first appliion of Panel Caving mining – Potentially >16Mtpa mining rate – 2 x 350m lift's – Multiple caving fronts Ridgeway Mtpa Cadia Hill Pit 16 Mtpa Cadia East Pit Cadia East Underground, Project Decline Ridgeway Deeps, Block Caving
to 200 m then by sublevel and by block caving at depths to around 1000 m. Two main rock types are present: a relatively weak sheared argillaceous schist and a very strong quartz porphyry. The open pit and the cave mining will intersect both of these lithologies and will therefore encounter significantly different mining conditions.
· Finally, when block cave mining is up and running, there is noticeable ground subsidence in the immediate vicinity. Lastly, there is substantial risk of pit slope failure over block caving as shown by the pit wall landslides at Palabora, Bingham Canyon, Cadia and Chuquicamata. Block Cave subsidence at the Ridgeway deposit NSW Australia Further ...
· The block cave mining system visualizer (BCMSV) software module was developed within the School of Mining Engineering at the University of New South Wales to harness VRSV for this purpose. 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 .
· Ridgeway is an underground coppergold block cave mine which is loed 3 kilometres north west of Newcrest Mining's Cadia Hill open pit mine in New south Wales, Australia. Remaining reserves and resources have been incorporated into the Cadia asset profile. Wood Mackenzie's asset reports are built from the bottom up, incorporating a number ...
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Full scale marker experiments were designed and implemented at the Ridgeway Deeps block cave mine from March 2008 to October 2010. The experiments aimed at quantifying and assessing the geometry of the extraction zone, development of the extraction zone over time, variability of flow behaviour, and factors affecting flow behaviour in both the near and far field of the cave column.
Mining and Construction has been awarded a contract for the supply of 14 LH517 LHDs ... which is currently used at Newcrest's Ridgeway Deeps Project ... best suited to panel caving are those where the horizontal dimensions are greater than those that are suited to block caving.
· Ridgeway Deeps (RWD) in Orange NSW Australia will be used as the example where innovative practices have assisted in establishing Newcrests first Block Caving Operation. The Cave establishment phase including lateral development, Undercutting and Drawbell Construction impacts on cave construction time and the ability of the mine to achieve early production and/or reduce the ramp .
· GLOBAL BLOCK CAVES Cu/Au grades and relative deposit size global block caves (Mt) Cadia East OyuTolgoi Hugo North Lift Ridgeway Deeps Carrapateena WafiGolpu 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 ...
· Initial exploration pointed to an underground mine similar to Ridgeway Deeps, however, more recent drilling has revealed that a much larger zone of mineralisation exists, likely to support both underground and open cut mines. The Cadia Hill goldcopper porphyry deposit was discovered by Newcrest Mining in 1992.
· Microseismic monitoring was performed as part of the hydraulic fracturing programme at Ridgeway Deeps Block Cave. The seismic data that are recorded during a typical fracture session have been described in detail. Frequency filtering and time domain methods are used to .
List of mines under case study. Ridgeway gold mine Sublevel caving to block caving. Northparkes copper gold mine – Block caving. Kanowna Belle gold mine – Open pit to underground large open stopes with backfill. Argyle diamond mine – Open pit to block caving. Telfer Deeps gold mine – Sublevel caving. Olympic Dam copper gold uranium ...
block caving, blasting, drawbell in one phase, fullscale test. Literature review After a century of operation, the world's largest open pit mine will reach its profitable limit by the end of this decade. At over 1100 m in depth and km in length, the historical Chuquicamata open pit mine
