Open pit mining method pdf

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dedicated disposal site outside the final pit boundary. Open-pit in this section. The main considerations are on those parts of mining is used for the extraction of both metallic and nonme- the excavation that have to accommodate the main equipment tallic ores; application of this mining method in coal is less and their Keywords: Mining method, surface mining, open pit mining, open cast mining, placer mining, solution mining, leaching, stripping ratio, mining machinery, excavation, cutting, grading, loading, ditching. Contents. 1. Surface Mining Methods. 1.1.Classification of Surface Mining Methods. 1.2. Open Pit vs. Underground Mining Open pit design, Production scheduling and plant sizing and. Evaluation. The problem is Mining sequence. Pit volume and shape. Mine life. Plant capacities (if not assumed). The ullknowns cannot be defined entirely in terms of the given data. The cut-off grades are The traditional pit design method does not use a total. Pickstone – Peerless Open Pit Optimisation Input Parameters. 3. Pickstone – Peerless Open Pit mining cannot progress past the public road between the Mombe River and the Mining. Office as the canal . calculating an intrinsic value per processing method of each block in a geological block model as a function of its methods. The open pit and underground operations are competing for the same resource. Transitioning to underground becomes a viable option because of the increasing strip ratio encountered at depth in the open pit as shown in the diagram below. While underground mining has higher ore mining costs than open. 27 Aug 2007 without dilution. Both are quoted at the grade fed to the plant. Open cast Mineral Resources are quoted as in-situ tonnages and Mineral. Reserves are tonnages falling within an economic pit-shell. The evaluation method is generally Ordinary. Kriging with mining block sizes ranging from. 10 x 10m to 100 x 9 Feb 2018 Full-text (PDF) | Choice of mining and processing methods; Choice of mining method; What determines the type of mining? Types of Mining Mining Methods. Presentation (PDF Available) · March 2010 with 5,222 Reads . 12) Area of land available for waste disposal (e.g., open-pit mines cover a larger. ing to the Minerals Yearbook, 67.4 percent was mined from open pits and 32.6 percent from underground mines in 1937. Open-cut mining is relatively new in the copper industry but yields more copper than any other method; in 1937 about 52 percent of the copper ore mined in the United States was taken from open pits. Surface/open cut mines: ? Strip mining; dragline p g; g p g; g. ? open pit mining; truck & shovel,. BWE etc . ? Underground mines: manual, semi. Underground mines: manual, semi-. h i d f ll. h i d mechanized, fully mechanized, fully-mechanized mechanized. ? Bord/Room. Bord/Room-and-pillar mining pillar mining. ? Longwall/. Factors in choice of. ($2.20—165/tonne) method: geologic, geographic, economic, environmental, societal safety b. Types of mining methods. Surface: open pit, open cast, etc. Underground: room and pillar, block caving, etc. c. Monitor costs and economic payback (3—10 yr). Post-mining. 5. Reclamation. Restoration of site.