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Evaluation of the Fragmentation Size Distribution Resulting from Blasting as Derived from Basic Principles
By Roger Favreau, Patrice Favreau
The article reviews the aspects which contribute to the quality of the results from a blast with explosives, namely a good floor, no large blocks, easy mucking, and explains the mechanisms of the blas
Jan 1, 2012
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A New Generation of Drilling at the Minntac Mine
By Don Thompson
The Minntac Mine drills and blasts approximately 75 million long tons of taconite per year. This requires drilling one million feet of 1 6-inch diameter holes. We are in the process of replacing our o
Jan 1, 1998
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The Approval and Use of Explosives in Coal Mines
By Joseph L. Uraco, Harry C. Verakis
The use of explosives in underground coal mines presents a potential risk for serious injuries and death to miners. Widespread disasters have occurred from the explosion of methane and/or coal dust in
Jan 1, 1992
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On Board Excavator Dilution Detector
By Benjamin Cebrian
The new technology presented in this paper is a patented system that is installed on board excavators (backhoe or front shovel types). Several control points are set along ore/waste contacts and their
Feb 1, 2020
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Blast Modifications at Island Copper
By Cam B. Grundstrom
This paper will describe blast design modifications that have been made at the Island Copper Mine, near Port Hardy, British Columbia. To date, two additional designs have been implemented in an effort
Jan 1, 1994
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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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Case Study Using 3-D Blast Modeling to Develop Design for Blasting in Close Proximity to Pit Pump
By Stuart Brashear, Steven Bell, Donald Smith
This Limestone site required the removal of a bench containing high quality rock located in close proximity to sump and pit pump. The sump and associated electrical box were below the bench that neede
Jan 21, 2025
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Institute of Makers of Explosives Safety Analysis for Risk (IMESAFR): A Tolerable Risk Criteria – What Is Safe Enough?
By Debra Satkowiak, Ronald Thomas
The Institute of Makers of Explosives (IME), a non-profit safety and security organization founded in 1913, is known for its industry best practices, Safety Library Publications (SLP), some of which h
Jan 1, 2017
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Unidelay Nonel Blasting System: a New Idea in Small Diameter Hole Blasting
By K R. Sharpe, A Davitt
CXA is currently evaluating, in co-operation with Inco Metals, a new idea in small diameter hole blasting - the Unidelay Nonel initiation system. In concept, the Unidelay system is a hybrid of the con
Jan 1, 1982
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Explosives Camp – Insanity or Cold Calculation?
By Paul Worsey, Barbara Robertson
In June 2007, Missouri Science & Technology (formally UMR) successfully held its 5th and 6th Explosives Summer Camps. The camps, which include substantial industry participation, have been an outstand
Jan 1, 2008
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Captive Insurance Companies
By M Dale White
Captive insurance companies have recently been discovered by risk management experts as a risk transfer vehicle and are very much in vogue. Actually, captive insurance companies are not a new phenomen
Jan 1, 1980
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Simultaneous Blasting of Multiple Overburden Seams in Surface Coal Mining
By Dave Howerton, Marshall Williams, Dave Finnerty
This paper will be presented jointly by El Dorado Chemical Co. and Arch of Illinois. It will deal with the simultaneous blasting of multiple overburden seams in surface coal mining. With the developme
Jan 1, 1992
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Journal: Effect of Depth Below Mudline of Charge Placement During Explosive Removal of Offshore Structures
By Craig Adams, William Poe
Introduction The United States Department of the Interior, Minerals Management Service (MMS) is mandated under the Outer Continental Shelf Lands Act (OCSL A) and the Energy Policy Act of 2005 to overs
Jan 1, 2011
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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 Temperatures Limits for Mixing Recycled Oil, Diesel Fuel, and Ammonium Nitrate to Make ANFO-Type Blasting Agents
By Thomas C. Rube, T S. Bajpayee
The Bureau of Mines conducted research to determine the safe operating conditions for using recycled (used) lubricating oil from mining equipment as a partial replacement for diesel fuel to make ANFO-
Jan 1, 1996
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1 January 2003 : Deadline for meeting legal requirements relating to the sale of explosives in the European Union
By R. K. Wharton
A European Directive requires that an explosive which is sold or transported within Europe must meet certain essential safety requirements from 1 January 2003. The assessment and certification of such
Jan 1, 2002
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Application of Neural Networks to Prediction of Powder Factor and Peak Particle Velocity in Tunnel Blasting
By Yonghun Jong, Chungin Lee
The main purpose of this study was to apply the artificial neural network (ANN) models to determine optimal powder factors and predict peak particle velocities, based on a series of observations and i
Jan 1, 2002
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Responding to Regulatory Permitting Requirements and Notices of Deficiencies for Open Burning/Open Detonation (OB/OD) Treatment Facilities
By M Dandeneau, P I. Rajic, K D. Murphy, M B. Johnson, T J. Tope
"Manufacturers and users of energetic material [i.e., propellants, explosives, pyrotechnics (PEP)] generate unserviceable, obsolete, off-specification, and damaged items that are characterized as reac
Jan 1, 1995
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A non-toxic, safe and reliable non-primary-explosives detonator
By Marco Antonio Falquete
Conventional detonators and blasting caps make use, as igniters, of flame-shock-, andfriction-sensitive primary explosives, such as lead azide, lead styphnate, mercury fulminate, etc, most of them sev
Jan 1, 2007
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Structural Control Over Fragmentation: Characterization and Case Studies
By Chantale Doucet, Mario Paventi, Malcolm Scoble, Yves Lizotte
Laboratory studies in homogeneous material indicate that the area of new surfaces created by blasting is proportional to the energy imparted to the material. Field studies, however, show that fragment
Jan 1, 1994