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Utilizing Continuous Photo Analysis of Fragmentation as a Blast / Crush Improvement Tool
By James McGough, Lawrence Mirabelli, Ran Tamir
The paper will demonstrate how automated fragmentation photo analysis is being used at the Lafarge North America, Ravena NY quarry as part of an ongoing drill, blast and primary crushing continuous im
Jan 1, 2012
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Explosive Use for Avalanche Control
By Don Bachman, Larry Heywood
Artificial release of snow avalanches, through the use of explosives, is a necessary component of safety planning and operations for ski areas throughout the Western United States, as well as in other
Jan 1, 1999
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How Electronics Initiation has Changed the Rules of Blast Design
By Thierry Bernard
For many years now electronic initiation has brought the time parameter to the centre of blast designs forever. Although this parameter existed before the era of electronic detonators, Blasting engine
Jan 1, 2005
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Elimination of Two-Pass Benching at Colowyo Coal
By Alan Jorgansen, Dave Hummer, Scott Scovira
Kennecott Energy's Colowyo Coal Mine is the largest open pit coal mine in Colorado and produces 5.5 MM tons per year. Colowyo uses the terrace mining method to recover up to seven seams of rolling coa
Jan 1, 2003
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The Role of Particle Size and Shape on the Propagation of Reaction in Explosive and Pyrotechnic Formulations
By James L. Austing, Allen J. Tulis, Ronald Pape, Ronald G. Draftz
In a certain sense, the explosives industry began in the 13th century with the invention of black powder, which is an intimate mixture of sulfur, carbon black or charcoal, and potassium or sodium nitr
Jan 1, 1995
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An Automated Approach to Blast Optimization Through Performance Monitoring of Blast Hole Drills and Mining Shovels
By M Scoble
This paper will report on the application of data collected through the performance monitoring of large diameter surface rotary blasthole drii and electric mining shovels, in an integrated approach to
Jan 1, 1992
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Controlling Vibrations Caused by Underground Blasts in LKAB Malmberget Mine
By Z X. Zhang
Ground vibrations from the blasts of the LKAB mine at the Malmberget town had reached 18-19 mm/s from year 2000 to 2002. From 2004 to 2010 the maximum vibrations had been reduced to 9 mm/s and most vi
Jan 1, 2012
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The Neural Net Model of Optimizing Selection on Preparation of Powdery Emulsion Explosives
By Duan Baofu, Wang Xuguang, Song Jinquan
In this paper, the model of optimizing selection on preparation of Powdery Emulsion Explosives(PEE) is established by the Neural Net Theory(NNT). On the basis of some data in the study of PEE, the tra
Jan 1, 2003
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Thermal Decomposition of Anfo at Low Heating Rates
By E. Contestabile, R. von Rosen, R. Guilbeault, R. Fouchard, P. Lightfoot
In August 1998, a truck loaded with 18 tons of blasting explosives, including over 13 tons of ANFO, left the road near Walden, Ontario. The crash caused a fire; approximately 30 minutes later a large
Jan 1, 2003
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World-Wide Survey of Distress Blasting Practice in Deep Hard Rock Mines
By Marwan M. Mohammed, Hani S. Mitri, Wilfrid Comeaul, Baoyao Tang
In many parts of the world, rockbursts have become a major problem of mining at depth. As orebodies are being mined deeper, rockburst phenomena have become familiar to deep hard rock mines. Rockbursts
Jan 1, 1999
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Blasting in The New Millennium - Misfires The Basics Never Change
By Steve Dillingham
Whenever misfired holes or portions of misfired holes remain after a blast is fired, a hazardous situation exists until the unfired explosive materials have been disposed of properly. Yet, there are s
Jan 1, 2004
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Test Study about the Law of the Action of Throw Blast Under Inclined boundary Conditions
By Wang Hong Qu
This paper observes the shape of throw explosion crater its ejecta locus of internal medium and the process of distance along with slope's angle developing. It was discovered that initial velocity is
Jan 1, 1991
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Innovations in Presplit Design and Highwall Control Blasting Techniques for Deep Open Pit Coal Mines
By Richard E. Danell
"There are a variety of approaches for wall control blasting in open pit mining operations. Safety forworking in the pit is the principal benefit. There are also a number of economic and productivityb
Jan 1, 1997
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Engineering Geophysics for the Mining and Construction Industries
By Douglas Rudenko
Most engineers, mine operators, or contractors acknowledge the importance of having accurate subsurface information in order to plan a project or solve a problem. Conventional methods of exploring the
Jan 1, 1998
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Journal: 100 Years / Harper’s Weekly New York May 21, 1870 / (Continued from the March/April 2006 Journal of Explosives Engineering) / The Value of Detonating Caps in Blasting
By Robert Hopler
It is the nature of the initial detonation to the powder around the cap which governs the greater or less effect of the explosion of the whole charge. The cap communicates to the first particles of po
Jan 1, 2007
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Underwater Explosions Part 2. Effects of Aluminium Increments to the Shock, Gas Heave and Total Energy Values of an Emulsion Explosive
The underwater test method for the determination of energy content of explosives is a very useful method. It’s also the only one which can separate shock and gas heave energies from each other. The to
Jan 1, 2005
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Recent Developments Relating to the Certification of Explosives for Sale in European Union Countries
By D. Pickering, R. Wharton
The deadline for meeting legal requirements relating to the sale of explosives in the European Union was 1 January 2003. The paper examines the range of materials that have already been certified by t
Jan 1, 2003
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AN Railcar Derailed Debris Collection–Data Analysis Update
By Brandon Fryman, Josh Hoffman, Rhys Baker
A post-detonation debris collection project was led in conjunction with a large ammonium nitrate(AN) railcar detonation conducted by the Department of Homeland Security-Transportation Security Adminis
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Ontario Hydra T.G.S. Chimney Demolition Thunder Bay, Ontario, Canada
By Ray Jambakhsh, Gabrielle Bourget
In the summer of 1998, Ontario Hydro awarded a contract to demolish an obsolete and inefficient chimney by blasting. The Ontario Hydro Thunder Bay Thermal Generating Station (T.G.S.), is a fully opera
Jan 1, 2000
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Blast Performance Analysis – Wavelet Transforms of Blast Seismograms
By Doug Anderson
Blast vibration seismograms are generally collected strictly for compliance with regulations. The peak levels (including dominant frequency) are typically all that are looked at. However, these record
Jan 1, 2013