Carlson et al. (2008) [5] Estimation of caving propagation rates at Henderson mine, Colorado, USA. Beck et al. (2011) [6] Estimation of caving propagation rates at ridgeway deeps mine, Australia. Someehneshin et al. (2015) [7] Determination of the optimal block size in the block caving method by the analytical method. Empirical King (1945) [8]
The first documented underground mine which applied the block caving method was the Pewabic iron mine in 1895 [43]. Although the block caving method has been known for over a decade, its massive deployment has only occurred in the last twenty years. During that time, the number of cave mining projects increased almost four times, from 17 to over
Lowther, R.J., Capes, G.W. and Sharrock, G.B. (2010) A deformation monitoring plan for extraction level drives at Ridgeway Deeps block cave mine, in Proceedings 2nd International Symposium on Block and Sublevel Caving (Caving 2010), Y. Potvin (ed), 20–22 April 2010, Perth, Australia, Australian Centre for Geomechanics, Perth, pp. 93–106.
In Jingshandian Iron-ore Mine, the second caving of the deep rock masses reaches the ground surface above the centre of the mined-out area, and then causes the ground collapse; under the combined effect of the underground mining in Jinshandian Iron-ore Mine and the remaining private mined-out areas, large-scale ground surface collapses and ...
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 …
Full-scale marker experiments at Cadia Valley underground operations have been ongoing for over 14 years. Initial marker experiments were undertaken in the Ridgeway …
The 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. It took …
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 …
Panel caving; Production Start: 1998: Mine Life: 2057: Snapshot: Cadia is one of the world's largest gold and copper mining operations. ... 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 ...
Ridgeway Deeps is a block cave (BC) located down dip of the operating Ridgeway sublevel cave (SLC) mine. The BC is located approximately 210 m vertically below the lowest SLC level and approximately 1100 m below surface. Due to the mine layout containing a number of common pieces of key infrastructure the activities of both were interlinked.When investigating project …
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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 ...
Block cave fragmentation has been documented in the literature to have a significant impact on mine design, performance and downstream material handling and comminution processes. …
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 …
Over the last 20 years Newcrest has developed unique capabilities within the caving industry to efficiently mine deep and low-grade deposits, transitioning from Sublevel Caving in Ridgeway and Telfer during the early 2000's and more recently to Block Caving at Ridgeway Deeps, Cadia East PC-1 and PC-2. (Dunstan & Popa 2012; Manca & Flores 2013 ...
Block caving Numerical modeling Joint characteristics UDEC software Response surface methodology 1. Introduction ... 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. Carlson and Golden (2008) [7] at the Hendeson mine observed a situation ...
Over the last 20 years Newcrest has developed unique capabilities within the caving industry to efficiently mine deep and low-grade deposits, transitioning from Sublevel Caving in Ridgeway …
This information is taken from "Block Caving," a summary prepared by David Chambers, Ph.D., Center for Science in Public Participation, Bozeman, MT, March 2008 Available
Deep 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 ...
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.
caving 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.
Cave mining techniques, including block caving and sublevel caving, are being employed in various mines around the world. ... Block Caving Chengchao Iron Mine Wuhan Iron & Steel Company Unknown SLC Chuquicamata Codelco ... Ridgeway Deeps Newcrest C&M Block Caving San Manuel BHP Closed ...
This paper outlines a process for the selection of material sizing and dewatering systems for large-scale caving operations. This process is illustrated with information drawn from …
The block caving method we review here is focused on Chilean deposits. Mining through block caving is applied to massive underground deposits when the open-pit method is not technically or economically viable. Block caving is a complex method ruled by the dynamics of caving and the breakage of the rock mass towards the surface due to ore extraction.
El 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
Block cave fragmentation has been documented in the literature to have a significant impact on mine design, performance and downstream material handling and comminution processes. ... Fragmentation prediction and assessment at the Ridgeway Deeps and Cadia East cave operations, in Proceedings Seventh International Conference and Exhibition on ...
