Bord and pillar mining platinum
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 … WebJan 1, 2024 · The success of platinum mining by the bord and pillar method depends heavily on a comprehensive and dependable pillar design method. Pillars need to be …
Bord and pillar mining platinum
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WebOur African Mining industry is one of the biggest and longest-suffering industries in the… Rethabile Letlala on LinkedIn: #tech4good #techcarnival #miningindustry #development #tech #connections WebOct 5, 2024 · The pillar design at Everest Platinum Mine was originally done using the empirical strength equation developed by Hedley and Grant and modified by Stacey and Page . Similar to standard industry practice, a factor of safety of 1.5 was adopted. For the UG2 pillar design, the K value at Everest Platinum Mine was estimated to be 35 MPa.
Webbord 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. WebJun 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.
WebMining 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 … 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 ...
WebBord and pillar mining. This diagram shows the traditional method of bord and pillar mining. Miners extracted coal along roadways or bords, with the coal between the bords acting as pillars holding up the roof. The outer …
WebMr. JP Gouvea has spent years in the African mining industry, majority in operational Rock Engineering and consultancy (gold, platinum, iron, chrome, copper and manganese). This entailed numerous mining methods such as massive mining, narrow tabular, open pit as well as bord and pillar mining. During this time he has had the opportunity to … nigh omniscienceWebThe object of this study is to formulate a procedure for the determination of mining dimensions in bord and pillar workings. This is achieved by using the recently reported pillar strength formula which was derived statistically from the results of a survey of mining dimensions carried out in the collieries of the Transvaal and Orange Free State. nigh omniscient meaningWebCreative mine-designs are constantly being applied in the deep platinum mining industry in South Africa. Recently, this has resulted in deep hot mine-designs including room+pillar, bord+pillar or stall+pillar layouts and the use of some degree of in-stope trackless mechanization. In these mines, the ventilation systems use refrigerated air and ... nig hotel and leisure combinedWebMar 1, 2024 · Show abstract. January 1988. The kinetics of platinum (Pt) in patients treated for two-cycle therapy with cis-DDP for ovarian or mammary carcinoma were investigated. Cis-DDP, at a dose of 65 mg/m2 ... nigh omnipresenceWebAn accomplished and dynamic Specialist Mining Engineer with 9 years of professional working experience in both surface and underground … nigh perched with a multiple problemWebThe underground mining methods we use include room and pillar, narrow vein stoping and large-scale mechanised mining. Room and pillar mining is a style of mining where … nighongo gamer twitterWebAquarius Platinum (Aquarius) announced late Friday evening that it had received an instruction from the principal inspector of mines in the North West region to reduce bord widths from 10m to 6m. The bord width is the extent of the reef that is mined out by mechanised operations between the supporting pillars of reef left in place to hold up ... nigh-on meaning