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Velocity of detonation of Non-Ideal explosives: investigating the influence of confinement
The VoD of non-ideal explosives depends on the charge diameter and the thickness, strength and sound velocity of the confiner. VoD measurements are made to evaluate explosives for development, quality
Jan 1, 2007
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Becoming Proactive With Lightning Safety And Explosives
By Zach Ellis, Dusty Fisher
Lightning is a major concern in the explosives industry. The enormous amount of energy delivered to the Earth from a single bolt of lightning is more than capable of detonating explosives. Although ex
Jan 1, 2015
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Borehole Geophone Method for Estimating Tunnel Blast Vibration Propagation
By Kyle Ott, Bernard Daly, Syed Haq, Douglas Anderson, Parsons Brinckerhoff
Drill and blast was determined to be the most cost-effective means of excavating the Raw Water Tunnel (RWT) for the Croton Water Treatment Plant in the Bronx, New York City. One of the major issues co
Jan 1, 2012
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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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Masterblaster Blasting Management System
By Chris Uys, Johan Labuschagne
Sishen Iron Ore Mine, located in the Northern Cape, is an open cast mine excavating approximately 100 million tons rock to produce 25 million tons of high grade haematite ore per annum. The size of th
Jan 1, 1997
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Mine Blasting Safety in the USA---Progress and Technology Advancements
By Harry: Lobb Verakis
Mining operations have made tremendous strides in improving the safety of blasting as shown by the significant and continual decrease in fatalities and serious injuries. Advances in blasting technolog
Jan 1, 2010
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A Case Study of Dimensional Stone Blasting in Korea
By Choon Sunwoo, Chang-Ha Ryu
There are various methods available for the recovery of dimensional stone in open pit quarries. Explosive blasting has more advantages in the economic point of view over the other methods but was not
Jan 1, 2003
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An Experimental Method for Producing a Micro-Particle Ammonium Nitrate (MP-AN)
By Christopher Jon Preston
This paper describes a type of ammonium nitrate (AN) produced in a patented experimental atomization/aerodynamic process. This AN exhibits outstanding properties for use as a main ingredient to a new
Jan 1, 2015
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Small Scale Testing of the Effect of Powder Factor, Timing and Charge Distribution on the Impact Breakage of Rocks
By A Tawadrous, P D. Katsabanis, S Kim
A series of small scale tests, have been performed to establish the effect of powder factor and initiation timing on the grindability of rocks. The blasts were performed in high quality granite blocks
Jan 1, 2009
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"Suppression of Dust Generation during Blast Demolition of ConcreteColumns"
By Chulgi Suk, Hoon Park, Hyonsoo Kim, Hakman Kim, Sangho Cho
Dust emission from blast demolition and other construction activities can be a nuisance; it is widely recognized that fine particles less than 10 µm in equivalent diameter (called PM10) may cause heal
Jan 1, 2016
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Controlling high risk blasting in an urban environment The Airport Link Story
By Rob Domotor
This paper tells the story of using controlled surface and underground blasting methods to excavate hard rock in three areas on Australia’s largest road infrastructure project; the Airportlink Project
Jan 1, 2012
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Peculiarities of Drilling and Blasting in Underground Small-Scale Mines
By Patricio Santis, Jacopo Seccatore
Artisanal and Small-scale Mining (ASM) is a prominent activity in the extractive industry: considering only gold, it produces about 20% of world market supply. Despite this fact, ASM is generally asso
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Effect of Meteorology on Airblast Overpressure
By Adrian J. Moore, Alan B. Richards
Airblast overpressure levels can commonly be increased by up to 20 decibels (dBL) by the effects of meteorology, due to inversions and wind shear. Existing atmospheric refraction models can provide a
Jan 1, 2005
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What We Learned While Determining VOD’s in Underground Small Hole Blasting
By Scott Rosenthal, Kyle Murphy
This paper discusses the trials and tribulations of obtaining Velocity of Detonation (VOD) readings in small diameter blast holes in an underground mine. Montana Technological University (Montana Tech
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Strategic Public Relations for Underground Conservatory at Tennessee Governor’s Residence
By Jake Hutchison, Wade Hutchison
The opposition to the project has risen as a result of some political pressures and from public perceptions about the project’s necessity and its impact on the neighborhood. As a result of this contro
Jan 1, 2009
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Levee Removal by Explosives, Upper Klamath Lake, Oregon
By Quentin Rhoton
To benefit two endangered fish species, waterfowl and other wildlife, and water quality in the lake and downstream, the decision was made to remove levees that had been in place since the 1950s. Becau
Jan 1, 2009
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Basics of Salt Blasting
By Anthony J. Konya
"This paper was written during part of the author’s student co-op with Cargill Salt at its Avery Islandunderground salt mine in Louisiana. Blasting salt is a unique type of blasting that is different
Jan 1, 2016
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Investigations of Shock Tunnel Dynamics and Energy Realization (a197a97d-a574-4dd6-b892-bc2dba4e791b)
By Joshua Hoffman, Braden Lusk, Kyle Perry
This study explores how different geometries affect the shock tunnel’s performance and is broken down into three phases. Phase 1: Open arena testing in which theoretical energies produced by the deton
Jan 1, 2009
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Problems in the Russian Blasting Industry
By Boris Belenky, M M. Graevsky, R I. Semigin, A E. Frantov
"In the mining industry, most of stripping and rock fragmentation is performed by blasting. The academician N.V. Melnikov has projected that blasting methods would be used to crush 20% of soft rocks a
Jan 1, 1995
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Use of High Density Ammonium Nitrate in Blasting
By Lex L. Udy
Properties of an explosive which itiuence its performance on rock breakage are analyzed in relation to the rock: hardness and a discussion on the interaction of an explosive with the rock during the b
Jan 1, 1995