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A Lightning Safety Primer for the Explosives IndustryBy Chris Vagasky
On July 10, 1926, lightning struck at Picatinny Arsenal, New Jersey, and caused the explosion of at least 600,000 pounds (272,000 kilograms) of ammunition, resulting in more than $600 million (2015 do
Jan 1, 2017
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Flyrock Elimination Program Part 3: 3D Bench PhotogrammetryBy Brian Sandhuas, Robert McClure
All flyrock incidents have the potential to result in injuries or fatalities that can result in loss of company reputation, license to operate with clients, and bear the exposure to high cost liabilit
Jan 1, 2012
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Use of Visualization Tools for Drill and Blast ActivitiesBy Carlos Alvarado, Hernan Narea, Jhon Silva, Bryan Townsend, Katherine Gil, Brayan Caceres, Felipe Pontanilla
With the promising development of new technologies, automation in Drill and Blasting (D&B) is on the horizon. The data generated in all D&B activities, which is currently segregated, can be linked to
Jan 21, 2025
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Hydrogen Peroxide Emulsion (HPE) – A Journey from Concept to RealityBy D. Scott Scovira, Thomas Gustavsson
The potential of hydrogen peroxide explosives was introduced to Thomas Gustavsson and Robert Håkland by Dr Miguel Araos through his development of hydrogen peroxide gel compositions (HPG). In 2020, Th
Jan 21, 2025
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Comparison of Micro-Inch In-Plane and Out-of-Plane Resoponse of Cracks to Blast Vibration and WeatherBy Jeffrey Meissner, Mike Waldron, Charles Dowding
Most studies of crack response have focused on opening and closing of a crack in the plane of the wall in which the crack occurs. Crack movement also occurs perpendicular or normal to the plane of the
Jan 1, 2010
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Burden and Spacing Effect on Underground Limestone Fragmentation using Quantitative 3D ModelingBy Mark Spaniel
Computer 3D modeling to evaluate the potential underground blasting fragmentation performance based on rock within calculated damage radii along drillholes, as well as the burden distance from explosi
Feb 1, 2020
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Subdrill – The Underutilised Blasting ParameterBy Stephen Mansfield
In metalliferous mining operations, subdrill is that portion of the blast hole that is drilled below the target grade elevation, and in most cases loaded with explosives. Its primary aim is to enable
Feb 1, 2020
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Delineating Extent of Cracks in Post-Blast Rock Surface Using GPR – A Case StudyBy Sayantan Chakraborty, Kaushik Dey, SaKaushik Dey tyabrata Behera
Drilling and blasting is a popular excavation technique in the drift of underground mine. Faster completion of drift reduces the gestation period and thus longer blast pulls are attempted with longer
Jan 1, 2019
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Gas and Dust Explosion Research at the UKERT LabBy Jaco van den Berg, Dr. Todor Petrov, Dr. Josh Calnan, Dr. Jhon Silva
This paper shows and reviews the similitudes and differences in explosions generated by high explosives and gas explosions, the reasons why gas explosions are difficult to replicate using high explosi
Feb 1, 2020
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Underwater Explosions - Particle Size Effect Of Al Powder To The Energy Content Of An Emulsion ExplosiveBy Martti Hagfors, Jussi Saavalainen
The underwater explosions has been used as a test method for the determination energy content of explosives. The test method is suitable for all kind of explosives; homogeneous, heterogeneous, wa-ter-
Jan 1, 2010
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Determination of the Precise Origins of Air Overpressure Generated from Production Blasts at Melton Ross QuarryBy C E. Johnson, S Hosein
Previous researchers have put forward two different theories as to the origin of air overpressure from quarry blasting. In 1980, Siskind et al postulated that the initial face movement gave rise to th
Jan 1, 2017
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Influence of Street Intersections on Blast Channeling and Diffraction EffectsBy Joshua Hofman, Braden Lusk, Erin Morris
Explosions in urban environments, whether of accidental or malicious cause, often result in extensive injuries, loss of life, and property damage. The ability to predict the damage inflicted by these
Jan 1, 2012