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Ore guiding in underground mining using MWD and machine learning
By J. Sanchidrián, A. Fernández, P. Segarra
The combination of chemical analysis techniques as XRF and measurement-while-drilling (MWD) technology in underground mining is a novel approach to gather comprehensive on-line information about physi
Jan 1, 2024
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EU Type Certification of Non-Standard Electronic Initiations Systems used in Blasting at Mines and Quarries
By Matthew Clay, Colin Chambers, Susan Hookham
Opencast (quarries) and underground mines around the world use blasting methods to mine valuable ore. Traditional blasting systems use technologies such as electric delay detonator systems (developed
Jan 1, 2017
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Digital Shock Tube
By Theirry Bernard
The era of non-electric systems as an initiating system has revolutionised the blasting world by introducing a very safe initiating system that is reliable, with initiation sequence possibilities that
Jan 1, 2007
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Western Europe's Largest Underground Blast
By P McConnell, T Garrigan
Tara Mines Limited, in Ireland, is Western Europe's largest zinc mine. Annual metal production, from 2.5 million tonnes of ore, consists of 180,000 tonnes of zinc and 34,000 tonnes of lead.
Jan 1, 1989
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Review and Learnings from a Surface Quarry Rockfall Incident
By Andrew Moore
It has long been common practice to conduct drilling and blasting operations at surface quarries in the Midwest in close proximity to near-vertical highwalls. The main reasons for such an approach, an
Feb 6, 2023
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Using New Technologies to Achieve Customer Tailored Fragmentation
By Felix Degold, Mark Ganster
Achieving a customer optimized fragmentation by using robust data from new technologies e.g. GPS positions of boreholes, fragmentation analysis to calibrate the geology and fragmentation prediction mo
Feb 1, 2020
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Blasting Next to an Unsupported Road using Electronic Detonators
By Tony Rorke, Sydney Thabethe
A large overburden blast was carried out at Douglas Colliery, Middelburg Mine Services, close to a national road in South Africa. The road is a busy route between Witbank and Bethal and damage to the
Jan 1, 2004
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Drilling and Blasting in Hot and Reactive Ground Conditions at Barrick Goldstrike's Meikle Mine
By D. Scott Scovira, Remi Proulx
The Meikle Mine is a high grade, underground gold mine utilizing primary-secondary longhole open stoping with delayed backfill to produce 3000 stpd of ore. Hot and reactive ground conditions were enco
Jan 1, 2000
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Blasting Near a Crusher
By Scott G. Giltner, Alex Schwenk
Blasting within 250 ft of a crusher was successfully executed through the application of electronic detonators, 3-D imagery, signature hole analysis, custom loading of blast holes. The blast was well
Feb 1, 2020
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Diagnosing and Modifying Off-Site Blast Effects by Seismic Means - A Case Study
By Stuart Brashear, Robert Brush, Ben Cook
In early 1993, the Piney River quarry owned and operated by the Blue Ridge Stone Corporation of W.W. Boxley, received a series of complaints from the owners of a 130 year-old historic farmhouse that h
Jan 1, 1995
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Advanced Blasting Optimization for Enhanced Productivity: The X-2Mill Solution
By Jorge Blázquez, Paulo Couceiro, Patricio Vergara, Luis Martínez, Juan Navarro
This study introduces the X-2Mill solution, a refined two-step methodology aimed at optimizing blast designs by aligning explosive energy with rock properties. The approach employs the X-4Traits Model
Jan 21, 2025
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Mountain Mass Surrenders to Man's Initiative & Daring
By Yogesh Narula
Nevis Bluff Landslide - On September 17” 2000, a rockfall measuring lO,OOOm3 at Nevis Bluff, New Zealand, triggered a loday emergency. It ended when a hazardous column of rock that towered over State
Jan 1, 2002
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What Really Is ANFO?
By Jean M. Bouvet, Pierre M. Vuillaume
There is not just one ANFO: ANFO explosive behaviour depends significantly on the blasting conditions and on its physico-chemical characteristics. For instance, ANFO effficiency increases whereas AN p
Jan 1, 1993
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Blasting Improvements by Using Most Active Rock Variations on Blast
By Alain Blanchier, Anne Charline Sauvage
Rock mass variations have a huge influence on explosives efficiency and on blasting results. Numerous blasting improvements could be gained by taking into account rock mass and its variations. However
Jan 1, 2004
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The Testing of Structures and Structure-combinations to be Applied as Explosive-proof Enclosure
By C. Heiss, A. Hofmann
Due to an explosion in an Austrian steel works during the basic oxygen process, the Chair of Mining Engineering and Mineral Economics at the Montanuniversitaet Leoben was assigned with the set-up of a
Jan 1, 2012
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A Reanalysis of Fragmentation Data from the Red Dog Mine - Part 2
By Norman Paley, Finn Ouchterlony
Detailed fragmentation data for different blast delay timing tests at the Red Dog mine in Alaska are analyzed. This work is a continuation of previous work in which the crusher output was found to be
Jan 1, 2013
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Journal: 100 Years / Scientific American New York December 2, 1911 The First National Mine Safety Demonstration Study Of A Real Mine Explosion By Charles L. Wright, Fuel Engineer, Bureau Of Mines
By Robert Hopler
THE work that is being done by the Government to reduce the dangers of mining was brought out strikingly in the First National Mine-Safety Demonstration which occurred at Pittsburgh, Pa., on October 3
Jan 1, 2012
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Application of Geostatistical Tools in Measurement While Drilling to Assess Geotechnical Rock Conditions in Sublevel Caving
By Clara Godoy, Álvaro Dapía, Paulo Couceiro, Pablo Segarra, José Ángel Sanchidrián, Juan Navarro
This paper applies geostatistical tools in Measure While Drilling (MWD) data to estimate the probability distribution of values in all the points of the studied domain in order to assess the continuit
Feb 1, 2020
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Methane-air Mixture Air-blast Approximated Using Detonating Cord in Rock Dust Dispersibility Studies
By BruneJurgen F., Richard C. Gilmore, Matthew Schreiner, Ray Johnson
Explosive pockets of methane-air mixtures accumulate in underground coal mines and, when ignited, produce an air-blast wave that can disturb combustible coal dust on the floor, roof, and ribs. To prev
Jan 1, 2019
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Slope stability through the application of low-energy explosives technology
By Jorge Cárdenas, Diego Gamarra
In previous phases of the mine, a landslide resulted in several losses in production delays. The stability of slopes in a mining operation is critical for the sustainability of the operation, as they
Jan 21, 2025