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Full-Face Blast Rounds in Shaft Sinking with Electronic Delay Detonators - a Critical Appraisal
By B Mohanty
Full-face blasting rounds have been used to excavate a 4.6-mdiameter shaft at Atomic Energy of Canada Limited's Underground Research Laboratory near Pinawa, Manitoba. Both standard pyrotechnic delay d
Jan 1, 1990
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Blasting with a Light Touch; Florida State Project 12014-3501 Fort Myers, Florida (307cb8ee-5b0c-48e5-806c-57d316a0ab82)
By Doug Wathen, Philip M. E Thomas
The City of Fort Myers needed to replace a 40-year old 42-inch storm sewer line in downtown Fort Myers with a new 54-inch line to accommodate population growth. The old line had to be kept operational
Jan 1, 1996
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NOx Emissions from Blasting Activities in a Surface Mining Operation
By Joshua Hoffman, Catherine Johnson, Braden Lusk
Blasting conducted in surface coal mining operations in the Appalachian region consumes a significant amount of blasting agents. Emission of oxides of nitrogen (NOx) from these operations potentially
Jan 1, 2014
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Energy, Strength and Performance, and Their Implications in Rating Commercial Explosives
By B Mohanty
Several parameters such as, Energy, Strength, Brisance, Impulse, and Bubble Energy, are in common use in the explosives industry today to rate commercial explosives in terms of blasting performance. H
Jan 1, 1981
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A History of Explosive Demolition in America
By Brent Blanchard
The use of explosives to safely fell structures can be traced back over 300 years. Since then, dozens of chemists, inventors, blasters and demolition experts worldwide have played prominent roles in t
Jan 1, 2002
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Analysis of Blast Damage to Green Concrete: A Dynamic Testing Approach to Field Cured Specimens
By Travis Davidsavor, Stanley: Dong Vitton
Concrete is a common construction material used throughout the world, and with increasing demand of fast-track construction, blasting and concrete casting are occurring simultaneously at many sites wh
Jan 1, 2003
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Adjusting Blasting to Increase SAG Mill Throughput at the Red Dog Mine
By N. Paley
An engineering project was undertaken at the Cominco Alaska Red Dog Mine to determine the extent that Semi-Autogenous Grinding (SAG) mill throughput could be increased by blasting differently. The Jul
Jan 1, 2001
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Isee Photography In Blasting Session
By T. Palangio
Most blasters wouldn’t think of initiating a shot without a seismograph to record vibration and air blast results. Some might even measure the velocity of detonation but few surprisingly record the ev
Jan 1, 2008
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Demolition of Old Bridge Piers ByBlasting
By S. Mandal, R. Singh
The demolition of structures with explosive though most rapid, safe and efficient requires planned blast design parameters with respect to geometric and strength properties of the structure to be demo
Jan 1, 2001
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Anatomy of a Blast Muckpile: Influence on Loading Machine Performance
By Yves Lizotte, Malcom Scoble, Sanu Hanspal
"This paper reviews the physical, chemical and mechanical components of what is considered to be the anatomy of a blast muckpile. These relate principally to geometry, floor, fragment size and shapedi
Jan 1, 1995
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Analysis of Blast Pattern to Evaluate Extent and Causes of Overbreak in Large Cavern
By S K. Mandal, S Dasgupta
"Damage is classifi ed as loss in the integrity or deterioration in the quality of rock massand is infl uenced by methodology of excavation on the geo-technical properties of rockmass. Overbreak, on t
Jan 1, 2008
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Drilling and Blasting a Complex Underground Ore Block
By Paul V. Sterk, James Wieser
Mining in underground situations requires constant change due to changing ore bodies and economics. The Homestake Mine in its 122 years of existence has gone through numerous changes due to these fact
Jan 1, 1999
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The Effect of Shock and Gas Energies on Rock Fracturing Process
"In order to increase control over blasting, it is important to identify the imperative mechanismsand to quantify their participation during the rock fracturing process. The useful energyreleased by t
Jan 1, 1999
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Effect of Water on ANFO/Emulsion Blends in Surface Mine Blasting
By Stuart Brashear, Lee Schettler
"The effect of water on several ANFO/emulsion blend ratios is documented by both physicalobservations and analytical testing to demonstrate the effect even small quantities of water canhave on water r
Jan 1, 1996
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New Applications for Reflectorless Lasers in Drilling and Blasting
By Cam Thomas
"Reflectorless laser survey equipment has made it much easier to take accurate measurements toinaccessible locations in quarries, open pit mines and rock slopes. Prior to the introduction of thereflec
Jan 1, 1999
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Sequence of Events During a Blast
By Favreau R. F. Ph. D, Favreau Patrice
The article explains that the way to achieve a successful blast is by insuring that the explosive energy divides properly into the weakening action of the shock wave which is necessary to prevent larg
Feb 1, 2020
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Windows-Based Automated Blast Loading and Reporting System
By Ronald Joseph
Windows-based automated blast loading systems have long being conceptualised and never really taken off in the surface mining sector. However, with the introduction a windows-based automated blast loa
Jan 1, 2009
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Electronic Detonator Failed by Electromagnetic Waves Emitted on Detonation of Nearby Explosive Charges
By Tuan Nguyen, Dirk Hummel, Ruilin Yang
In a tunnelling site in Japan, it was found that detonators failed to initiate with their shells and primary explosive intact. Their capacitors, however, were discharged due to some damage on the appl
Feb 6, 2023
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Considerations for the Excavation of Subsurface Facilities by Drill and Blast Methods, Yucca Mountain Project
By Roger Keller, Jason Ryan
A number of studies have evaluated excavation methods for the construction of subsurface facilities for a potential deep geologic repository for the disposal of nuclear waste at Yucca Mountain, NV. Ma
Jan 1, 2001
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Merging an Open Pit with an Underground Mine
By Charles L. Greening
MARTIN MARIETTA CEMENT at Martinsburg, West Virginia, has been and presently is engaged in coupling present open pit with old underground workings. Various drilling and blasting techniques have been i
Jan 1, 1982