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Oversize Quantification Using Drone-Based Fragmentation Analysis
By Nolan Eckroade
The demand for blast optimization within the quarrying industry calls for more effective, faster and safer methods of quantification of blast performance. Drones provide the ability to safely and quic
Jan 1, 2018
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Target Loading from a Submerged Explosion
By Ulrich Leiste, Andrew Wardlaw, William Fourney
This paper describes the loading on a plate suspended directly over an explosive charge submerged in water. This problem is of interest because it yields results similar to those obtained in the deton
Jan 1, 2008
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Explosive Freeze Pipe Cutting at the McArthur River Uranium Mine
By Dale Preece, Mike Stern, Steve Piercey, Ayman Tawadrous, GC Zhao
The McArthur River uranium mine in Saskatchewan, Canada is the world’s largest high-grade uranium mine. It has employed a freeze-wall system consisting of multiple freeze pipes to control the large qu
Jan 1, 2011
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Low Density Bulk Emulsion Applied in Perimeter Holes in Underground Development Heading Blasts
By Anne Caroline Costacurta Polli, Jose Rojas Cáceres, Roberto Mahler de Morais, Thais Costa Silva
The technology and the knowledge about the behavior of explosives and detonation accessories allowed to create new products for different situations by the restrictions imposed by the market. In a Bra
Jan 21, 2025
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Real-Time Prediction of Meteorological Effects on Airblast Levels
By Adrian Moore, Alan Richards
A real-time system for prediction of the effect of meteorological conditions on airblast overpressure levels has been established in the Hunter Valley Coalfield in Australia. Real-time meteorological
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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Shaft Holing Project at Bulyanhulu Gold Mine, Tanzania
By W. De Graaf, C. Mkumbo
Bulyanhulu Gold Mine Limited (BGML) commissioned a project of sinking a Bulk Air Cooling Shaft during its programme to improve the ventilation system on the mine. As part of this project, a ventilatio
Jan 1, 2011
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Environmental Concerns at Colorado School of Mines Explosive Research Laboratory
By Nicholas Matthews, Vilem Petr
This project will report findings on the establishment of a new surface test site at the Colorado School of Mines Edgar Mine. Concerns over the blast effects on site neighbors prompted the study to be
Jan 1, 2010
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Blasting a Narrow Orebody at Bong Mines, Liberia
By Dieter Froelich, Giles Turcotte
In the near future, Bong Mining Company (BMC) will start mining a new deposit known as Zaweah II which is a narrow iron orebody requiring multiple row blasts with the bench floor as a free face. This
Jan 1, 1980
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Stem Induced Fracturing Revisited
By Uli Leiste
Two papers are presented which examine Air Deck Blasting, one from a computational aspect and the other from a shock aspect.
Jan 1, 2016
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Blast Vibration and Impact Sound Control, Measurement and Documentation during Two Large-Scale Tunneling Projects
By Thomas Rupp, Michael Siegwart
The paper presents the vibration and sound emission measurement campaigns carried out in 2007 in preparation for the Ceneri-Basistunnel construction. We also present the vibration measurement campaign
Jan 1, 2009
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A Consumer's Guide to Bulk Emulsions and Emulsion/ANFO Blends
By Catharine L. VanOmmeren
Emulsion quality characteristics such as shelf life, handling, and sensitivity are critical to the end-user. It is therefore important that the consumer be prepared to ask his supplier specific questi
Jan 1, 1989
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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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Lessons Learned from Blasting in Highly Weathered Sandstone
By Tyler Rockley, Greg Bailey
This paper is an engineering case study of a blast performed on a highly weathered sandstone isthmus in an area sensitive to vibration and airblast, the challenges associated with such a blast, the me
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The Odd Challenges of Backcountry Trail Blasting (1b065404-a403-4c07-96f7-7a9b8e26646e)
By Miie Shields, Ed Billington
Trail blasters for the National Park Service (NPS) live and work in remote mountain terrain throughout the western states, where any support or resupply may be sporadic and ditlicult and mountain weat
Jan 1, 2002
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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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Blasting Optimization using 3D Photogrammetry in a South Brazilian Quarry
By L. O. Souza, J. F. Gewher, M. P. Scussiatto, C. S. Mendonca, R. A. McClure, B. T. Kuckartz, J. Kloeckner
Blasting is the most effective and economical tool available to fragment and move rock for most applications. If properly executed, it can improve down-stream operations such as loading, hauling and c
Jan 1, 2013
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Evaluation of Velocity of Detonation of Permitted Explosives
By R R. Singh, U K. Dey, S K. Roy
"Commercial explosives being a heterogeneous mixture of many chemical compounds in prefixed proportion, their velocity of detonation (VOD) may vary from batch to batch, due to variations in the propor
Jan 1, 2007
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Analysis of Annual-Delayed Successive (4D) Geophysical Charges in a Borehole
By D. Preece
The mining and oil industry employs techniques such as geologic mapping, core drilling and electromagnetic and potential field techniques to explore for new deposits. Since new discoveries of major ne
Jan 1, 2011
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Preventing Blast Damage to Underground Infrastructure from Open Pit Operations
By C. Liley
Open cut blasting at the Ernest Henry mine has the potential to cause damage to nearby underground workings. This paper is a case study of the blast vibration management project which was conducted to
Jan 1, 2012