Bord and pillar mining platinum
WebFeb 17, 2024 · This paper presents a study of this behaviour in a hard rock bord and pillar mine. A numerical modelling approach to simulate time-dependent pillar failure, on a mine-wide scale, is described in the paper. ... (2012) Simulation of time-dependent crush pillar behaviour in tabular platinum mines. J S Afr Inst Min Metall 112:711–719. Webdesign of maximum spans (bord width) for platinum and chrome bord and pillar mines in the Bushveld Complex, South Africa. The project tasks included mine site visits; interviews; desktop review of all methodologies and technologies currently in use in hardrock bord and pillar mines in the Bushveld Complex, collaborative workshops
Bord and pillar mining platinum
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WebJun 2, 2024 · Bord-and-pillar mining explained. By Ben Langford. Updated June 1 2024 - 9:14pm, first published May 30 2024 - 7:47pm. Shear size: A longwall miner in action on … WebMar 1, 2005 · It was decided to mine the UG2 orebody with trackless equipment using a bord and pillar mining method. Frank shaft has been mining the UG2 orebody for …
WebThe mine is fully mechanized and uses the bord and pillar mining method. Access is via two declines, one for access of men and materials and the other for hoisting ore. The mining layout used in poor ground conditions is shown in Figure 1. ($($ )%$ (!"$ %$#) The area investigated is characterized by upthrows usually related to sympathetic faults WebThe third case wasa platinum mine in the Eastern portion of the Western Bushveld also using a bord and pillar mining method where gouge between of 20 cm and 30 cm was present at the top contact or within the pillars in different areas on the mine. Compression of the gouge contributed to the widespread pillar failure, by the same
WebTranscribed image text: 2.1 A platinum mine is planning to extract the Merensky reef at a depth of 1300 m below surface using a bord and pillar layout, and you have been requested to assess the geotechnical risk associated with the planned mining and to advise the management on the way forward. Assume the following: - Depth of the Merensky ore …
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WebMining takes place at depths below surface of between 250m and 500m, using the bord-and-pillar mining method. Currently, the UG2 reef is mined at Kroondal, the Merensky reef having been mined out before our acquisition. ... Under the pooling and sharing agreement with Anglo American Platinum Limited (Amplats), revenues, costs and capital ... lablind.comWebbord and pillar layout (see Figure 3). The bords are 4 m wide and pillar sizes are 13 m x 13 m, thus creating centres of 17 m. The stopping width in the development phase is 1.8 m (0.2 m hanging wall, 0.8 m UG2 reef and 0.8 m footwall). The pillar that is created is then stoped out from the roadways for 2 m. The stopping width is only 1 m (0.2 m. labler leoben donawitz atWebMay 28, 2024 · These advances mean that charging times can be reduced by 30% or more, raising the number of faces that can be charged for blasting within a single shift – an … lablight lierWebJun 28, 2015 · Any bord and pillar platinum mine thrives on effective design of bords and pillars. Pillars have to be large enough to ensure safety and small enough to ensure economic and sustainable exploitation of the mineral resource. Consideration of span of the bords of the working area is also crucial to safe and economic design of the mining layout. lablight arWebBathopele Mine (Bord and pillar UG Pt mine) : Managing a section of the mine operation according the the MHSA regulation 2.14. From planning … promatect xw boardWebMining in the Sigma sub-basin began in the early 1950s at the Sigma Colliery. Early bord-and-pillar extraction mining methods however left much of the resource unmined, and during the 1960s total extraction methods, such as long walling and pillar extraction, were introduced to improve extraction (Cillié and Savage, 1961). promatect h 15 mmWebbord and pillar layout (see Figure 3). The bords are 4 m wide and pillar sizes are 13 m x 13 m, thus creating centres of 17 m. The stopping width in the development phase is 1.8 m … lables on ladder are than required