The Deep Mill Level Zone (DMLZ) panel cave is currently in the transitional stages of undercutting and production. Misrepresentations in the characterization of the rock mass resulted in hindered cave growth during the initial stages of cave development and ramp-up, compared to forecast. In order to make informed decisions regarding mine safety ...
Read MoreBlock refers to the mining layout in which the ore-body is divided into large sections of several thousand square meters. Caving of the rock mass is induced by undercutting a block. The rock slice directly beneath the block is fractured by blasting, which destroys its ability to support the overlying rock.
Read MoreThe Ridgeway gold mine has been an enigma of the international underground hard rock community for nearly 20 years. It nearly didn't eventuate as it was more than 500 m below a farmer's paddock in Central New South Wales when the exploration team, looking for open pit deposits, got a sniff on its last attempt and then drilled the high-grade discovery hole. …
Read MoreEl Teniente Mine (Esmeralda), Chile 169% Millan and Brzovic (2013) Data obtained for Block 1 (Esmeralda Mine). Swell factor obtained based on broken ore density of 1.6 t/m3 and intact rock density of 2.7 t/m3. Ridgeway Deeps Mine, Australia 104–112% Sharrock et al. (2012) Data obtained over an 8 month period coinciding with the
Read MorePDF. 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 …
Read MoreThis paper outlines the analysis undertaken to identify parameters which influence material recovery at the Ridgeway SLC operation. Parameters analysed …
Read Moredewatering systems for large-scale caving operations. This process is illustrated with information drawn from Newcrest's Ridgeway Deeps Block Cave project. The Ridgeway Deeps Block Cave is located directly beneath the existing Ridgeway Sublevel Cave Mine. FORMAL CITATION:Krek, R M, Leonforte, A, Pratt, A G L and Dunstan, G F, 2008. اقرأ ...
Read MoreBrunton, I., and G.B. Sharrock. "Full Scale Marker Trials at Ridgeway Deeps Block Cave Mine," Int. J. Rock Mech. Mining Sci. (in progress), 2013. Sharrock, G.B., and I. Brunton. …
Read MoreThe 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, …
Read MorePDF. 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 …
Read Morecaving rate is constant (based on the use of a constant volume increase coefficient). Several case studies later showed that these assumptions were incorrect. Studies by Beck [6] at the Ridgeway Deeps Mine in Australia have shown that sometimes caving initiations may not occur on part of the undercut area.
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WEBPDF Size: 0.175 . Unique ID: P201103012. Ridgeway Deeps is a block cave (BC) located down dip of the operating Ridgeway sublevel cave (SLC) mine. The BC is …
Read MoreFull-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 …
Read MoreFull 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 …
Read MoreThe use of block caving to mine ores and rocks of kimberlite deposits in Yakutia (Udachnaya, Yubileynaya Mir pipes) will ensure high economic efficiency and productivity, reduce damage to …
Read MoreThe 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 ...
Read MoreRock fragment size is a key variable in several mining stages such as underground mine design, equipment selection, and mineral processing. In Block Caving, rock fragment sizes are affected by fragmentation during gravity flow in the ore column while ore is being extracted from drawpoints. Additionally, smaller fragments can percolate …
Read MoreRidgeway 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 …
Read MoreNEEDS TO KNOW ABOUT BLOCK CAVING THE DEEP MINING METHOD OF THE FUTURE Touted as the deep mining method of the future, block caving is an ... 3D view of Block Caving mine, displaying draw column coloured by grade. Planview of extraction level of Block Caving mine. Colour ... _2016202224.pdf Philips M, 2016. …
Read MoreThe 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 ...
Read Morethe Ridgeway Deeps block cave mine. This deformation monitoring plan has been implemented for the following reasons. Firstly, to provide a safety monitoring program …
Read MoreBlock caving is an important mining method for the future economic exploitation of large, low-grade, steeply dipping orebodies. While block caving is not a new method, there are still many unknowns surrounding the mechanics driving the process, particularly as we are forced into deeper, higher-stressed and stronger ore deposits. The …
Read MoreEditorial Special issue on block and sublevel caving. Caving mining methods are not new. This ultimate underground mass mining approach has been practiced around the world for more than a century. It is true, however, that cave mining and, more specifically block, and panel caving methods, which are said to have productivity and unit costs ...
Read MoreLongwall and caving methods are distinguished from other mining methods by the fact that the near-field rock undergoes large displacements so that mined voids become self-filling. In caving ...
Read MorePDF | 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 ...
Read MoreDeep Ore Zone (DOZ) Mine is an underground mine with block caving method within The East Erstberg Skarn System (EESS) deposit. Safe ground condition is the most important thing on production stage ...
Read MoreBlock caving is not a new method, however, there are still many unknowns surrounding the mechanics driving this process, Block caving is an important mining method for the future economic exploitation of large, low grade, steeply dipping orebodies.
Read MoreThere are four of five ore bodies in the PT Freeport Indonesia underground complex, which are mined by the block caving method, i.e., Deep Ore Zone (DOZ), Deep Mill Level Zone (DMLZ), Grasberg Block Cave (GBC) and Kucing Liar (KL). This method is designed to produce 20,000 to 130,000 tons of ore per day.
Read MoreAn experimental review of gravity flow for block and panel caving applications In Proceedings of Massmin2008, 9-11 of June, Lulea, Sweden, pp. 1043-1051. Castro, R., 2004. The scaling of physical model flow results for full scale mine design in block caving.The block caving mining method has become increasingly popular in the last …
Read MoreNew Afton is a block caving mine located 10 km outside of Kamloops, British Columbia, Canada. The mine operates two lifts, Lift 1 and B3, with two separate caves on Lift 1, the West Cave (WC) and ...
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