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Slope stability through the application of low-energy explosives technology
By Jorge Cárdenas, Diego Gamarra
In previous phases of the mine, a landslide resulted in several losses in production delays. The stability of slopes in a mining operation is critical for the sustainability of the operation, as they
Jan 21, 2025
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Limestone Fragmentation Case Study Using Regular Rhythmic Timing
By Tristan Worsey, Jhon Silva
The paper discusses a limestone quarry case study that looks at change in fragmentation due to using different charge sequences when using the regular rhythmic timing method.
Feb 1, 2020
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Aquarium Tests to Study the Detonation Behaviour of a Non-ideal Explosive.
By M. Araos
Non-ideal explosives can be characterised by different methods like velocity of detonation measurement, double pipe tests, underwater tests, aquarium tests, etc., to name a few. Both aquarium and velo
Jan 1, 2024
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Additive Manufacturing of Liners for Conical Shaped Charges: Practicality and Performance
By Phillip R. Mulligan, Catherine Johnson, Edward Kinzel, Cody Lough, Jason Ho
A shaped charge is an explosive device used to focus detonation energy in a desired direction. Shaped charges have numerous applications in several industries such as oil extraction, weaponry and demo
Jan 1, 2019
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Underground Blast Monitoring and Rock Mass Anisotropy
By Jody Todd, Ernesto Villaescusa, Ronald Lachenicht, Kelly Fleetwood
In the underground environment, characterisation of a rock mass during the mining cycle becomes increasingly difficult due to a lack of rock mass exposure for measurement or observation. In most cases
Jan 1, 2008
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Prototype gauges for measuring detonation temperature and pressure of commercial explosives
By A. Torrance
A better understanding of the detonation performance of an explosive charge can be gained by directly measuring pressure, temperature and velocity of detonation (VOD). This is particularly important w
Jan 1, 2011
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Seismic Monitoring of Production Blasts
By Klaus G. Hinzen
Seismic observations offer the only possibility for remote sensing of physical processes like shock-front spreading, material crushing and ground movement. A better understanding of these processes wi
Jan 1, 1989
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Vibration Criteria for Surface Mine Blasting: Ten Years after Bureau of Mines R1 8507
By David E. Siskind
In the early 1980's, the Bureau of Mines published four reports of structural response and damage from surface mine blasting, vibration monitoring, and analysis methods. These findings replaced simple
Jan 1, 1991
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A Blasting Efficiency Descriptor "Bed" (for surface blasting)
By Evan Jannoulakis, Wilfrid Comeau
Using the Scaled Distance (SD) and the vector sum Peak Particle Velocity (PPVvs) from a single delay, preferably single blasthole, in a shot, a number is derived which has shown itself to be consisten
Jan 1, 1998
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Underwater Blast Pressures from Confined Rock Removal Shots The Kill Van Kull Deepening Project
By Thomas M. Keevin, Gregory L. Hempen
A study was conducted to measure underwater pressures associated with confined borehole shooting used to remove rock for The Kill Van Kull Deepening Project, U.S. Army Corps of Engineers, New York Dis
Jan 1, 2005
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Journal: USDA’s Wildlife Services Explosive Safety Program “Managing Wildlife Damage”
By Alton Dunaway, Kevin Sullivan, Charles Gray, Doug Hall, Kevin Grant, Kelly Thiel, John Paulson, Bruce Leland, Cole Boyd
Beaver (Castor canadensis) are responsible for economic losses exceeding $4 billion over the last 4 decades in the southeastern United States alone. A large portion of these damages occurs to public r
Jan 1, 2007
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Advanced Analysis of Airblast and Vibration Signals for Optimizing Blast Design
By Frank Sames
Blast vibration and airblast overpressure signals are generally rated and compared only by their maximum amplitude and the principal frequency associated with the peak pulse. The scaled distance conce
Jan 1, 1997
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Journal: Anhydrous Ammonia and Ammonium Nitrate Production Raw Materials for Blasting
By Ken Tunnel
In the spring of 2005, the Lake Superior Chapter of the ISEE invited me to speak about raw materials used for blasting, anhydrous ammonia and the effect of this important feedstock on the cost of ammo
Jan 1, 2007
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The Effect of Prill Specifications on Emulsion-ANFO Blends (dfcf65b3-c26f-475a-ba27-2ec8841d710f)
By Greg S. Williams, David L. McDorman, Richard W. Givens
This paper examines the effect of prill size consistency, internal particle density, and oil absorbency on Ammonium Nitrate Fuel Oil (ANFO)-emulsion blends. By analyzing these physical properties of p
Jan 1, 1990
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Blasting Databases: A Unique Method for Saving and Retrieving Blasting Data
By Calvin J. Konya
Precision Blasting has designed easy to use, yet, highly powerful databases for storage and retrieval of blasting data. Three different Databases are available for blasting data management. The Vibrat
Jan 1, 1991
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P-Wave and S-Wave Velocity Measurement for Stress-Strain Analysis
By Karl E. Burger
Recently an experiment was completed at the Golden Sunlight Mine, a property owned by Placer Dome Inc. of Vancouver, British Columbia, to measure the Body Waves entering their highwall created by blas
Jan 1, 1989
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Improved Drill and Blast Designs Free $3.6M of Ore for Surface Copper Mine Tacio Ferreira, Dyno Nobel
By Tacio Ferreira
A surface copper mine in the Western United States faced challenges in recovering rock and ore from final walls because of geotechnical constraints that require restrictions on methods for loading bla
Jan 21, 2025
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Improvements to Blast Performance by Use of a Low-Density Emulsion at Barrick Goldstrike's Meikle Mine
By Tony Francelj, D. Scott Scovira, Remi Proulx
The Meikle Mine is a high-grade, underground gold mine that utilizes a primary and secondary stoping method with delayed backfill. The newly developed Rodeo Mine will start production using similar mi
Jan 1, 2002
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Distribution of Specific Impulse on Vehicles Subjected to IED's
By Alexander Hauck, Dimitri Jung, Uli Leiste
This paper describes results from small scale tests conducted to determine the distribution of impulse on target plates when subjected to loading due to the detonation of a buried mine. The tests were
Jan 1, 2010
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Advanced techniques using microscopy to quickly assess emulsion quality and stability.
By G. Cavanough, A. Torrance
Emulsions have been developed for over forty years to become the most common water-resistant explosives used in the mining industry. An emulsion is a common commodity, with many examples in our day to
Jan 1, 2024