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Radio Controlled Detonators and Sequential Real Time Blast Applications
By J M. Laboz Bernard
Among the numerous technical evolutions in the blasting environment we are going to describe below the concep
Jan 1, 1995
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Blasting with a Spherical Charge at Serra Geral Mine
By Marcello Crispi, Valdir Silva, Juarez Moraes
Companhia Vale do Rio Dote - CVRD is the largest mining company in Brazil and the largest iron ore producer in the world. Serra Geral Mine (SGM) is located at Iron Quadrangle of the State of Minas Ger
Jan 1, 2002
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The Effects of Blasting on Crushing and Grinding Efficiency and Energy Consumption
By Lyall Workman, Jack Eloranta
Blasting has an important impact on mining and milling well beyond the necessary ability to dig and load the ore efficiently. There is an increasing body of blasting research indicating significant im
Jan 1, 2003
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Initial Testing of a Speed of Sound Test Apparatus for Powdered Explosives
By Barbara Rutter, Shonn Kevin McNeil
"This study discusses how a prototype was built to measure the sonic velocity in powdered explosives.The sonic velocity of an explosive is a benchmark to determine if the explosive deflagrates or deto
Jan 1, 2017
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Tehachapi, CA, Double-Track Project, Rock Slope Design and Excavation
By Thomas Pallua, William C. Gates
"Two major railroad companies have identified several segments along the railroad corridor betweenTehachapi and Bakersfield, Kern County in California that require construction of a second track to im
Jan 1, 2017
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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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Preventing and Dealing with Blasting Complaints
By Michael Ostrowski
While the words “explosives” and “blasting” cause insurers to become apprehensive, skilled contractors using modern techniques under controlled conditions rarely cause serious damage or injury. Howeve
Jan 1, 2003
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Trend of Bulk Explosives in India
By Suresh Menon
The explosive industry in India has passed through various stages - from a period of total dependency to a period of self sufficiency and now, is saddled with large spare capacity. The last decade and
Jan 1, 1998
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Predicting Rotary Drill Performance
By George P. Jr Schivley
Looking at the process of drilling rock from the standpoint of the power required, yields an equation that relates Force-on-the-Bit; Torque, to rotate the bit; and bit Angular Speed to the Penetration
Jan 1, 1994
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Chemical and Physical Factors that Influence No. Production During Blasting - Exploratory Study
By James Rowland, Isaac Zlochower, Richard Mainiero, Michael Sapko
The National Institute for Occupational Safety and Health (NIOSH) carried out exploratory laboratoryscale studies to identify factors that may contribute to nitrogen oxides (NOx) production associated
Jan 1, 2002
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Resolution to a Conflict Regarding Blasting Near a High Pressure Pipeline
By Randall Wheeler
In early 2008 we were asked by a quarry to become involved in a conflict with a pipeline company concerning blasting near one of their underground high pressure gas lines. The pipeline company, withou
Jan 1, 2011
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Underground Mega Mass Blasting with Electronic Initiation Near Urban Area (d4770d5b-0062-4b3c-9658-460485a3a3f4)
By Jean-Francois Lagueux, Andre Pomerleau
Goldex Mine is an underground mine located near the town of Val-d’Or. Multiple innovations were required to work the mine. Due to its low grade, it was important to develop a bulk mining method to eco
Jan 1, 2011
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The Influence of Oxygen Content and Surroundings on the Heats of Explosion and Detonation of Organic Explosives
By Edward Barrody
There are wide variations in the values of heats of explosion and detonation as reported in literature. These values are not “stand-alone” or sole properties of the explosives. Specifications of the c
Jan 1, 2003
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Blasting in the New Mellinnium: Are We Learning from Mistakes
By Steve Dillingham
There are some blasters and blasting companies that just seem to have better safety reputations than others. This is in spite of the fact that they are essentially doing the same type of work under si
Jan 1, 2003
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Vibration: Its Effect & Measurement Techniques at or Near Dwellings
By Goran Lande, Bernt Larsson, Dennis Clark
The effects of vibrations on close surroundings has been studied in Europe and the United States extensively in the past three to four years due to the ever increasing demands of environmental control
Jan 1, 1983
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Destress Mass Blast in the North Regional Pillar at Brunswick Mine
By Philemon Desrochers, Ken Qian Liu
Following the success of the West Ore Zone distress mass blast in 2001 at Brunswick Mine, a similar approach was taken to distress the North Regional Pillar (NRP) which contained over 3 million tonnes
Jan 1, 2004
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Blasting in the New Mellinnium: Reactive Versus Proactive SafetyYou Decide
By Steve Dillingham
Change occurs all of the time. In fact, it’s fair to say that change is a constant. Sometimes the change is inconsequential, but sometimes the change impacts us d i rectly and severely. Take regulatio
Jan 1, 2003
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“Blasting Effects on Water Wells and Pipelines”
By Rachel Bernau
Water wells, aquifers, and pipelines rarely incur damage from nearby blast vibrations. Extensive ground vibrations may cause a drop in the water table thereby changing an aquifer’s structure or drying
Jan 1, 2001
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Back to the Basics: Electronic Detonators
By Larry Schneider
In recent years, many individuals looking into the future of the blasting industry have predicted that the most likely next technological breakthrough would be the use of high precision, digitally con
Jan 1, 2006
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Blast Vibration Damage to Water Supply Well Water Quality and Quantity
By Gordon M. Matheson, David K. Miller
Possible impacts to the water quality and production capacity of ground water supply wells by blasting is a common cause of complaints for blasting contractors, mining companies, and local regulatory
Jan 1, 1997