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The Effect of Fragmentation on Loader Productivity
By Michael D. McGill
The effect of fragmentation size distribution as it relates to front end loader productivity was evaluated by comparing loader cycle times to fragmentation size of the shot rock. At Gold Mine in Sout
Jan 1, 1994
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Experience with and benefits from the use of 3D Stereophotogrammetry for blast design and control
By Peter Moser, Mark Ganster, Andreas Gaich
Surveying of a bench face before blasting is a pre-requisite for a proper blast planning and for a satisfying blasting result both in terms of safety and fragmentation. When surveying a bench face, pr
Jan 1, 2007
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Report on the 11th International Symposium on Rock Fragmentation by Blasting
By A T. Spathis
The 11th International Symposium on Rock Fragmentation by Blasting (FRAGBLAST 11) was held in Sydney, Australia, between 24-26 August, 2015. The 93 papers, including six keynote presentations, covered
Jan 1, 2015
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A Modern Analytical Approach to Generating Site Specific Blast Designs
By Bruce Vandenberg
A 3D, PC based computer program is currently under development by Blasting Analysis International, Inc., to analyze the kinetics of full scale blasts with two or more high-speed motion picture cameras
Jan 1, 1990
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Electronic Blast Initiation - A Practical Users Guide
By John Watson
New Technologies, New Challenges and New Opportunities For quite some time now, numerous explosive manufacturers have spent untold man-hours and millions of dollars trying to develop a blast initiatio
Jan 1, 2003
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How Things Have Changed
By Lance McAnuff
The year 2001 coincided with the forty-fifth year of blasting-control specialization by the author. Commencing with the construction of the Saint Lawrence Seaway System in 1956 and continuing until th
Jan 1, 2002
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The Odd Challenges of Backcountry Trail Blasting
By Ed Billington, Mike Shields
The trail blaster is faced with a wide range of workrelated challenges, not the least being the work setting itself. It is usually remote, being anywhere from 5 to 30 or more miles (8 to 50 km) from a
Jan 1, 2004
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Surface Instabilities from Buried Explosions
By Daniel P. Lathrop, Leslie C. Taylor, William L. Fourney
Except when the target is on the surface, e.g. a tank track, the most important loading mechanism from a buried charge on a target above it is the impact of soil propelled at the target by the expandi
Jan 1, 2009
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Blast Modeling with Sabrex 3.5 and Its Applications to Improve Mine Productivity
By Stephen H. Chung
The blasting performances identified above are considered to be the most practical ones for judging the effectiveness of a design combining explosives / rock / drill pattern. In a total blast design p
Jan 1, 1994
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Deadhead and Dry-run Testing of a 3-inch Emulsion Gear Pump
By C. M. Badeen, J. Paige, W. Evans, L. McCauley, A. Caddies, I. Alilovic, R. Turcotte, C. O. Lyogun, C. Bonner
Gear pumps are very commonly used for the pumping of AN-water based emulsion products for both handling and blast loading applications. The potential major hazardous problems likely to be encountered
Jan 1, 2015
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Transition of the Seismograph from a Tool of Litigation to a Tool of Production Efficiency
By David S. Bowling
The ER-300 Series White Recorders were developed to provide on economical, yet invaluable instrument for those who desire permanent recordings of such data OS displacement, vibration, concussion (air
Jan 1, 1990
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Tunnel blast drill hole surveying – Benefits and Methodologies
By G. Adderley, A. Wetherelt
The problems of poor drilling in underground operations have been highlighted on many occasions. Incorrect collaring and poor angular deviation can all lead to an increased block size, dilution, over-
Jan 1, 2009
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A Holistic Approach to Wall Control Blasting at Yellowstone Talc Mine
By Tom Barry, Kameron Ray, Dr. Gavin Yuill
Imerys Talc, Yellowstone Mine in Montana faces significant geotechnical challenges such as poor wall quality and local instabilities. These instabilities are driven primarily by the characteristics of
Jan 1, 2016
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Improving Geologic Knowledge with IOT Sensors on Blasthole Drills
By Steven Putt
Seismic While Drilling (SWD) is a newly developed technology in the mining industry. Improving upon Measurement While Drilling (MWD) systems, SWD measures mechanical properties of the rock at incremen
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New Blasting Techniques to Eliminate Subgrade Drilling, Improve Fragmentation, Reduce Explosive Consumption and Lower Ground Vibrations
By R. Frank Chiappetta
A new blasting technique has been developed by International Technologies, LLC. to eliminate subgrade drilling, lower ground vibrations, improve fragmentation and reduce explosive consumption. The new
Jan 1, 2004
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Soil Cap Density Distributions Resulting from Buried Explosions in Saturdated Sand
By L C. Taylor, H U. Lesiste
This paper describes a method for estimating the density distribution in the soil cap as a function of distance from its top at the time of impact with the target. It provides an estimate of the densi
Jan 1, 2011
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Trench Blasting in Close Proximity to Existing Utilities in Ultra Metamorphic Rock (705d7ae2-b943-4f91-9b2f-b06e02816eba)
By Tom Treleaven, Andrew Williams
Several contracts were let in Greenwich, Connecticut, for the installation of a sanitary sewer. The majority of the excavation was in rock and involved numerous challenges due to the following condit
Jan 1, 2003
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A Simple Method of Determining Site-Specific Safe Decking Procedures in Order to Avoid Dynamic Pressure Issues When Decking
By Neal Lee, Braden T. Lusk, Brendan McCray
Determining the minimum amount of inert material that can be used between explosive columns is a complex problem. Using too little inert material can result in detonator/primer failure, either by symp
Jan 1, 2016
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Shock Waves and Detonations, Explosive Performance (Tiger Code Theory)
By Per-Anders Persson
This chapter deals with the concepts ofshock waves aud detonation waves together, because a detonation wave is really a shock wave, supported by the explosive reaction that the shock wave ignites and
Jan 1, 1994
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Blasting in Congested Areas
By David Miller, James Santoro
Blasting is often required in urbanized areas to allow for economical execution of construction, demolition, and mining. Several examples of operations that require blasting in built up areas include
Jan 1, 2000