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Data-driven improvement of active rockburst prevention - case study from Polish underground copper minesBy M. Szumny, P. Mertuszka, K. Fuławka
Multi-face destress blasting is the basic method of reducing rock bursts hazard in Polish copper mines. Blasting operations of this type are carried out regularly, twice a day in order to minimize the
Jan 1, 2024
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Marine Blasting on the New Panama Canal, Pacific EntranceBy Paulo Couceiro, Manuel Lopez Cano, Carlos Rodgriguez Calvo
Apart from its difficult execution, underwater blasting is one of the most critical operations of the blasting techniques; mainly because of the ground vibrations - normally associated with low freque
Jan 1, 2011
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Preventing Blast Damage to Underground Infrastructure from Open Pit OperationsBy C. Liley
Open cut blasting at the Ernest Henry mine has the potential to cause damage to nearby underground workings. This paper is a case study of the blast vibration management project which was conducted to
Jan 1, 2012
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Worsey-Silva Equation for Modeling Fragmentation Caused by Row TimingBy J. Silva, T. Worsey
The Worsey-Silva equation determines the optimal row timing for the smallest fragmentation and allows fragmentation models to be adjusted due to row timing. The equation utilizes the concept of dynami
Jan 1, 2024
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The 1998 Explosion of the Debruce Grain ElevatorBy Jerome H. Stofleth
In June of 1998, the DeBruce Grain Elevator was devastated by an accidental explosion caused by the unintentional ignition of grain dust. The DeBruce grain elevator was the largest ‘single head-house’
Jan 1, 2004
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Dynamic Pressure Study to Minimize Misfires at Pueblo Viejo MineBy Ricardo González Dumuihual, Carlos Scherpenisse
A monitoring campaign to record dynamic pressures generated by detonation of a single blasthole was implemented at Barrick Gold´s Pueblo Viejo Open Pit mine (PVDC), located in the Dominican Republic .
Feb 1, 2020
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What Broke the Burden? Improving our Understanding of Burden Breakout.By Mauritz Kotze, Jason Furtney, Ewan Sellers, Sandy Etchells, Tom Szendrei
The development of a simple model for gas flow and burden movement has driven the need to improve our understanding of burden breakage mechanisms for single hole blasts and the interaction between mul
Jan 1, 2013
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History and Development of Packaged Explosives Progressing from Nobel's Inventions to the Recent Introduction of EmulsionsBy Robert B. Hopler
"The story of packaged explosives begins with the use of black powder (also called gunpowder) in mining. Although discovered in the 13th century, it was not until 1627 that the first records of use in
Jan 1, 1991
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What You Always Wanted to Know About Blast Waves in Blocky BenchesBy Hans-Peter Rossmanith
Fracture mechanics (Atkinson 1987, Broek 1988, Rossmanith 1978-2002, 1983, 1997, Kanninen & Popelar 1985) and wave propagation (Graf 1975, Rinehart 1975) form the main ingredients in the new electroni
Jan 1, 2004
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Evaluation of Blast Vibrations from Sekkoy Surface Coal Mine In TurkeyBy H. Bilgin, Sedat Esen
In this paper, the ground vibrations induced by blasting for stripping work at Sekkoy Open Cast Coal Mine belonging to TKI Yenikoy Lignite Mine (YLI) are investigated and the procedures for monitoring
Jan 1, 2001
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Energy, Strength and Performance, and Their Implications in Rating Commercial ExplosivesBy B Mohanty
Several parameters such as, Energy, Strength, Brisance, Impulse, and Bubble Energy, are in common use in the explosives industry today to rate commercial explosives in terms of blasting performance. H
Jan 1, 1981
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New Variables for Rock Fragmentation ManagementBy Rafael Tadeu Pinto e Moura, Giorgio De Tomi, Jacopo Seccatore
This paper describes a research and development project in an open-cast mine with the goal to achieve an average P80 of 300 mm (11,8”) in the run-of-mine (ROM) product without altering the existing bu
Jan 1, 2015
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New Aspects of Shock Waves in Underwater BlastingBy Zoltan Susanszky
The total available energy in an explosive charge is seldom fully utilized in industrial operations. For this reason more explosive is normally used to perform a job than we would calculate. In an exp
Jan 1, 1976
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The Use of High-Speed Motion Picture Photography in Blast Evaluation and Design (23c6f2b6-16c1-4f76-b2cd-4d87a79d67ba)By P J. Dailey, S L. Burchell, R F. Chiappetta
High-speed motion picture photography and its application to the mining, quarry, construction, and explosive industries has proven to be a valuable diagnostic tool. The techniques developed allow one
Jan 1, 1983
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Toxic Fumes on the RocksBy Michael S. Wieland
Toxic fume concentrations from industrial mining explosives depend somewhat upon the type of rock (or other strata) confinement. Though traditional detonation theory disregards this influence, the wor
Jan 1, 2005
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Using Acoustic Sonobuoys to Detect Underwater ExplosionsBy H. R. Maggard, C. M. Bollinger
Solving the problem of detecting underwater explosions from "dynamite fishing" can be done by using a system of sonobuoys programmed to detect the acoustic waves from underwater explosions. The system
Jan 1, 2004
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Blasting SafetyBy Thomas E. Lobb, Harry C. Verakis
Significant progress has been made in the reduction of serious injuries and fatalities resulting from mine blasting operations. Despite the progress, injuries and fatalities continue to occur. A leadi
Jan 1, 2005
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Reduced Ore Dilution by Controlled Split Round Blasting in Underground Uranium MiningBy John R. Jr Tripi, Paul N. Worsey
Split round blasting is commonly practiced in underground uranium mining in the Big Indian ore belt located in Southeast Utah. The technique is used to prevent ore dilution by separately blasting the
Jan 1, 1985
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Blasting Near Buried Pipelines: A Gas Company ProspectiveBy Frederick R. Cosgrave
Blasting near buried Natural Gas pipelines has always been an area of great concern. Given the many variables that the blaster must contend with in determining how to break the rock while trying to ke
Jan 1, 1995
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Improvements in Blasting Technology at Cliffs Natural ResourcesBy Scott Giltner, Allan Koski
Blasting is one of the lowest cost yet most critical parts of the mining cycle. This paper discusses the findings of an audit conducted on the blasting operation at an iron ore mine. The purpose of th
Jan 1, 2009