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Expanded Rock Blast Modeling Capabilities of DMC_Blast, Including Buffer Blasting
By Dale S. Preece, J Paul Tidman, Stephen H. Chung
"A discrete element computer program named DMC-BLAST (Distinct Motion code) has been under. development since 1987 for modeling rock blasting (Preece & Taylor, 1989). This program employsexplicit time
Jan 1, 1997
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Emulstion Explosives Technology
By David G. Borg
Emulsions explosives, like slurries or water gels, are water based explosives. Emulsions were first introduced as a packaged blasting agent in the late sixties. Since then, many new variations have be
Jan 1, 1994
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Unmanned Aircraft Systems Use in Blasting Operations
By Lon Santis, Dale Ramsey
The use of aircraft to support blasting operations in mines, quarries and construction sites goes back to the early days of aviation. Invaluable at times, aircraft use has been limited by cost, the un
Jan 1, 2016
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3D Computer Simulation of Bench Blasting With Precise Delay Timing
By Dale Preece, C. Mick Lownds
Detonation delay timing has been an important aspect of quality rock blasting for decades. Detonators that enable delay timing have improved over the years especially with the recent advent of precisi
Jan 1, 2008
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External Shock Migration for Buried Structures
By Henry S. McDevitt
External Shock Mitigation (ESM) is being studied as a possible means of retrofitting existing buried structures to provide additional protection from ground shock. As part of this study, two tests wer
Jan 1, 1997
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A Practical Guide for the Blasting of Armour Stone or Riprap
By Alastair Grogan, Ron Elliott, Dale MacLean
Blasting for armour stone presents many unique challenges. Often, blasters get themselves into trouble when they assume that they can simply modify a production blast design to produce the required fr
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Improvements in Quarry Blasting Cost Effectiveness
By P Cotton, N Cox
The Brisbane City Council has implemented a program of continual improvement at its Mount Coottha Quarry in the heart of Brisbane, Australia. The program has been underway for the past 6 years, and ha
Jan 1, 1996
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Air overpressure Prediction Equation for Construction Blasting
By Calvin Konya, Anthony Konya
State and Federal construction specifications require the Blasting Contractor to prepare a Master Blasting Plan which is reviewed by the Owner’s Representative. The Master Blasting Plan requires the
Jan 1, 2015
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Blasting Near Communities: A review of new techniques and technologies to minimize the impact generated by blasting
By L. Muñoz, L. Steffen, J. Alarcón, W. Vilas
Today, mining operations close to communities face increasing challenges, especially in their drilling and blasting operations. Proper management of environmental impacts is important to guarantee the
Jan 1, 2024
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The Relation between Excavator Bucket Loading Time and Particle Size Distribution of Shot Rock
By Gungor Tuncer, Ali Kahriman, Abdulkadir Karadogan, Umit Ozer, Kagan Ozdemir
In the condition that drilling and blasting technique is inevitable depending on the rock mass and material characteristics on mining activities, the fragmentation rate and particle size distribution
Jan 1, 2007
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Journal: Hazmat 101 / PART 4 – Cargo Segregation and Securement
By Tom Snyder, John Brulia
Part 4 is the final article by the authors on hazardous materials (HM)transportation safety and compliance for U.S. shippers and carriers who offer and transport commercial explosives in commerce on p
Jan 1, 2015
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Applied to a High Risk Case History
By C Agreda
The Cushion Blasting Technique applied to solve the high risk case history represented by a 10,704 TM rock locate at 120 M from the hydroelectrical plants of 350 KV each, is described, analyzed and di
Jan 1, 2005
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Determining and Mitigating the Effects of Firing a Linear Shaped Charge Underwater
By Brian T. Burch, Paul N. Worsey
When fired, submerged Linear Shaped Charges (LSCs) lose all effectiveness in the cutting of steel. Users in underwater applications have reported having to substantially increase the charge size to th
Jan 1, 2015
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New Affordable, High-Sped, Solid State, PC Based Video Imaging Systems and Software
By Don W. Lake
Of all the blast monitor& instrumentation systems and techniques av&able today, highspeed photography and videography remain as the most valuable, stand alone, diagnostic techniques to evaluate full s
Jan 1, 1992
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600 000 M.T to move, a High Risk Operation
By Jean-Sébastien Lambert, Serge Roberge
"At the end of 2014, Holcim Canada (Demix Aggregates Division) considered the possibility of drillingand blasting a big volume of rock in order to expose a high-quality limestone bench in one of their
Jan 1, 2016
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Vibration Characteristics on Surface and in Underground Openings from Opencast Mine Blasting
By M. Roy
Safety and stability of underground coal mine workings are always in danger when opencast mines are operating in close proximity. A study was conducted to investigate the level of vibration generated
Jan 1, 2007
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Investigation into Monitoring of Initiator Performance
By Charles Deacon
The mining industry is constantly taking greater cognisance of their operating costs as a strategy to counter the effects of falling commodity prices. As a result, optimal operating efficiency is more
Jan 1, 2000
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Soil Improvement by Blasting Part II
By Wade A. Narin, James K. Mitchell
Hydroblasting is considered a distinct soil improvement technique from explosive compaction, though the blast designs for the two techniques are similar. Hydroblasting is a three step process develope
Jan 1, 1995
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Using State of the Art Blast Modeling Software to Assist the Excavation of the Yucca Mountain Nuclear Waste Repository
By Jason Ryan, Stephen Harria
Q.E.D. (QED) is a blast design and evaluation model that allows full three-dimensional design specification including the development of unique “live” terrains and an unlimited variety of complex char
Jan 1, 2000
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Application of Computer Blast Modeling to Oil Shale Mining
By P J. Hommert, D S. Preece
"Commercial development of the United States Oil Shale reserve will require substantial amounts of mining. In fact, even a modest 500,000 barrels per day industry requires a mining effort equivalent t
Jan 1, 1989