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Confiner Strength and Thickness Effects on Detonation Characteristics of Emulsion Explosives
By D. Lynn Gordon, Larry B. Weston, Michael W. Manhart, Patrick R. Bowden, Michael W. Redmond
Study of confinement effects on detonation characteristics and subsequent fitting form development as a function of confiner strength and thickness.
Feb 1, 2020
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JKVBOC Blast Movement Model Applications for Ore Control at Open Pit Mines
By Constanza Bujes, Mark Jones, Graham Crook, Yansan Jamyanbaatar, Sedat Esen
Tracking ore characteristics such as grade and hardness from its original position into the material handling and processing stages remains one of the key challenges in open pit mining of hard rock de
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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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Regression Model for Surface Vibrations from Underground Operations
By Tristan Worsey, Nathan Rouse, Daykin Schnell
The authors were retained by a proposed underground metals mine operation to evaluate the potential blast vibration amplitudes that could be generated at surface structures above the proposed mine. Li
Feb 1, 2020
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Connecticut's "Call Before You Dig" System: New Laws and Regulations
By Stephen G. Rieben
Almost everyone has at least heard of the two one-call systems which serve New England. They are "Call Before You Dig", which covers Connecticut, and "Dig Safe", which covers the remaining five New En
Jan 1, 1990
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Mine To Mill Process Integration And Optimisation – Benefits And Challenges
By Walter Valery, Sarma Kanchibotla
Due to the global financial crisis, the world economy has turned upside down and most major economies in the world are facing severe recession for the past one and half year. During this period most c
Jan 1, 2010
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Vertical Attenuation of Blast Vibrations
By Catherine T. Aimone-Martin, Brent Meins
Blast vibration monitoring for buried pipelines is typically conducted at the ground surface with a shallowly buried geophone. In many jurisdictions across the U.S., blast-related vibration limits se
Jan 1, 2019
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Blast design optimization system to improve mining downstream operations by adapting the explosive energy to the rock mass based on drill monitoring data
By P. Couceiro, J. Navarro
A new methodology to perform selective blast designs by adapting the explosive energy, hole by hole (or in the hole), to the rock properties as a combination of their strength properties through the X
Jan 1, 2024
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Drilling and Blasting Optimization
By Jorge Flores, Benjamin Cebrian
Blast Optimization at a high altitude mine operation involves not only the selection of the right drilling designs and explosives but also the circumstances of operators working at low oxygen levels a
Jan 1, 2015
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Modeling Reactive Sulfide Rock at the Red Dog Mine
By Norman Paley, Zachary Pickett
The Red Dog Mine is a high-grade zinc-lead mine located in northwest Alaska which began operations in November 1989. In June 2014 the upper half of a charge in a trim shot in the Aqqaluk pit deflagrat
Feb 1, 2020
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Kanalku Falls Blasting for Fish Habitat Improvement in Alaska
By Catherine T. Aimone-Martin, Kristen Kolden
In August of 2013 the USDA Forest Service (USFS) blasted bedrock at the base of a waterfall in Kanalku Creek within the Kootznoowoo Wilderness Area on Admiralty Island in the Tongass National Forest l
Jan 1, 2015
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Reactivity and Spontaneous Detonation
By Alastair Torrance, Italo Onederra, Do Sun Kim, Kush Patel, Gary Cavanough
Reactivity of ammonium nitrate-based explosives is associated with the presence of sulphide in the ground reacting with explosive products and in some instances causing spontaneous reactions which can
Jan 1, 2019
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Mine Blasting Accident Update
By Larry R. Fletcher, John W. Kopp
The safety record for explosives in U. S. mining is excellent considering that over 4 billion pounds of explosives are now being used each year. However, blasting accidents remain one of the most seri
Jan 1, 1991
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Blasting Accidents in Mining
By Michael A. Peltier, Dennis V. D'Andreal, Larry R. Fletcher
Accident data obtained from the Mine Safety and Health Administration (MSHA) were analyzed by the Bureau of Mines to determine the most frequent causes of blasting accidents in U.S. mining and to exam
Jan 1, 1987
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Impact of Open-pit Blasting on the Stability of Adjoining Multiseam Workings of Underground Coal Mine
By Ajoy Singh
A study was conducted to investigate the damage potential to underground multi-seam openings caused due to vibration generated by open-pit coal mine blasting. The objective was to recommend optimal ex
Jan 1, 2012
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Underground Airblast Monitoring for Blast Performance Diagnosis and Detailed Attenuation Modelling
By Jon Hurt, Brent Meins, David Vardiman
"Two test blasts were conducted at the Sanford Underground Research Facility to establish optimum blast designs and to limit blast effects on existing research rooms and equipment in preparation for t
Jan 1, 2017
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Blasting Access Holes in Thick Sea-Ice, Mcmurdo Sound, Antarctica
By Martin Reed, John Wright
Blasters with the United States Antarctic Program (USAP) have developed techniques for opening access holes in floating sea-ice where the use of conventional drilling equipment is impractical. The bla
Jan 1, 2001
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Journal: Vibration and Seismograph Section / Use of GPS and GPS Exchange Format Files in Pennsylvania
By Rick Lamkie
When investigating citizen complaints about blast vibration and airblast, it is important to be able to establish the spatial relationships between blasts, blasting seismographs monitoring the events,
Jan 1, 2008
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Pneumatic Stemming of Horizontal Holes with Particulate Material
By Clay McNail, Paul N. Worsey, John Schillie
"This paper is the result of undergraduate student research over the period of 2 semesters at UMR, which was focussed on developing a practical way to pneumatically stem horizontal boreholes, mostcomm
Jan 1, 1999
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Removing Booster Influences from Toxic Fumes
By Michael S. Wieland
"This report investigates whether it is tractable and thereupon reasonable to remove the boosterinfluences when ranking the toxic fumes of non-cap-sensitive mining explosives. The hazard potential is
Jan 1, 1999