Results 11 to 20 of about 1,012,080 (297)
Instability Mechanism of Extraction Structure in Whole Life Cycle in Block Caving Mine
Geofluids, 2021 In the whole life cycle of the extraction structure in block caving mine from the beginning of roadways excavation to the end of ore drawing, there are many factors affecting the stability of the extraction structure.
Zhi-Yuan Xia, Zhuo-Ying Tan, Lei Zhang
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A Methodology to Determine Undercutting Height in Block/Panel Caving
MiningThe undercutting process is a technique employed to initiate the caving of the ore mass in block caving, achieved by creating a basal cut on the block scheduled to be submerged.
Danko Morales +2 more
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DETERMINING A RESILIENT STOPE BOUNDARY FOR UNDERGROUND MASS MINING PROJECTS
Rudarsko-geološko-naftni Zbornik, 2022 Uncertainty-based stope boundary optimization is a complex part of underground mine planning, especially in mass mining projects and notably block caving. Besides, grade variation and grade uncertainty are significant sources of error in mining projects.
Mohammad Shami-Qalandari +2 more
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Strategic considerations in block caving [PDF]
Proceedings of the Second International Symposium on Block and Sublevel Caving, 2010 Over the last 20 years there have been considerable advances in geotechnical techniques used in the design of block caves. However, despite these advances the successful development of a block caving project relies heavily on many non geotechnical factors such as commodity price, exchange rate and development exploration timing. An understanding of the
Richard Butcher, George Smith
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Investigating mechanical and geometrical effects of joints on minimum caving span in mass caving method [PDF]
International Journal of Mining and Geo-Engineering, 2023 This paper investigates the effect of jointed rock mass properties on the Minimum Required Caving Span (MRCS) in the block caving method using numeric and heuristic approaches.
Behnam Alipenhani +2 more
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Future underground mining at LKAB Svappavaara: potential to combine caving and stoping methods
, 2022 Two of LKAB’s Svappavaara area open pit operations, Gruvberget and Leveäniemi, nestled between Kiruna and Malmberget SLC mines, have been initially considered for transition to underground mining using SLC or block caving methods.
Saiang, David +3 more
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Proceedings of the Fourth International Symposium on Block and Sublevel Caving
, 2021 Seismic tomography methods are progressing in crustal seismology and at the smaller mining scale to recognise highly stressed or fracture-prone areas.
Westman, Erik C. +1 more
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Block caving strategic risks [PDF]
Proceedings of the Fourth International Seminar on Strategic versus Tactical Approaches in Mining, 2011 Over the last 20 years many companies have investigated the use of block caving to extract low grade orebodies at depth. Despite the interest in these projects, few companies actually embark on the implementation of large scale caving due to the risk profiles.
Richard Butcher, Matthew Fallon
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Assessment of the dilution controlling factor in the production scheduling of mines [PDF]
مجله مدل سازی در مهندسی, 2021 With reduction in the mineral grade due to thedevelopment of the mining area to the depths and to ensure the economic efficiencyof mining operations, it is necessary to increase the annual productioncapacity, therefore scheduling problems optimization in
farshad nejadshahmohammad +2 more
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Strata Caving and Gob Evolution Characteristic in Longwall Mining
Shock and Vibration, 2022 It is usually difficult to capture strata caving and gob evolution characteristic in longwall mining at engineering scales. This paper uses bonded block modelling (BBM) approach within a distinct element method (DEM) code to simulate strata behaviour in ...
Weidong Pan, Xinyuan Li, Zhining Zhao
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