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Unmanned Aircraft Systems Use in Blasting Operations
By Lon Santis, Dale Ramsey
The use of aircraft to support blasting operations in mines, quarries and construction sites goes back to the early days of aviation. Invaluable at times, aircraft use has been limited by cost, the un
Jan 1, 2016
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Concrete Bridge Pier Removal in an Environmentally Sensitive River
By Paul Kunze
When a new bridge was needed across the upper reaches of the Yellowstone River in Montana, removing the old concrete bridge piers became an environmental concern for the highway department engineers.
Jan 1, 2014
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Case History: Controlled Demolition of a Reinforced Concrete Structure in San Sepolcro, Italy
By Roberto Folchi
This note deals about the controlled demolition work for the dismantling of an industrial structure in San Seplocro, Italy. The structure to be demolished, the FLOWERS SILOS, consisted in a multilevel
Jan 1, 1994
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Journal: 100 Years / In The Circuit Court of the United States For The District Of Delaware United States of America, Petitioner vs E.I. DuPont De Nemours and Company and Others, Defendants July 13, 1907 Origin of the Conspiracy and the Various
By Robert Hopler
That some time in the year 1872 there was organized an association composed of practically all of the manufacturers of gunpowder and other high explosives in the United States, the members of which sa
Jan 1, 2008
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A Preliminary Study into the Relationship between Air Overpressure and Face Velocity in quarry Blasting
By W. J. Birch, R. Farnfield, L. Bermingham
Whilst a significant body of research has been carried into air overpressure levels that arise as a result of the use of explosives, few published studies have actually tried to relate the movement of
Jan 1, 2008
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Concepts and Case Study for Regular Rhythmic Timing and Sequence
By Neal Lee, Braden T. Lusk, Jhon Silva-Castro, Patrick J. Jenks
"Timing and charge sequence are very important for optimized blast design. Traditional nonelectricinitiation systems have moved the industry toward a system of delays consisting of hole-to-hole androw
Jan 1, 2016
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The Actual Cost of Hole Deviation to the Mining Industry - A case Study at Nkana Division of the Former Zambia Consolidated Copper Mines Limited
By Sam Kangwa, Thomson Sinkala
In the mining industry, drilling accuracy has a significant effect on the economy of operations. In this paper, results from the Nkana Division of the former Zambia Consolidated Copper Mines are prese
Jan 1, 2004
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Vibration Effects on Historic Structures
By Randy Wheeler
One of the more difficult topics to address concerns the effects of vibration on historic structures. Not only blast induced vibration, but also vibration from other transient and semi-continuous sour
Jan 1, 2004
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Blasting Claims 101: An Introduction to the Defense of Claims
By Joshua A. Bennett
"Lawsuits where owners allege their property has been damaged by nearby blasting routinely costblasting companies, explosives engineers, and others in the field both time and money. When ownersfeel th
Jan 1, 2016
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Destructive Wave Interference in Underground Blasting Utilizing Precise Timing.
By Kurt Oakes, Paul Worsey, Braden Lusk, Tony Brasier, Jerry Chambers, Scott Crabtree, Randy Wheeler
Destructive wave interference has been studied in theory for many years. In application however, limited information can be found. Recently, circumstances have enabled a multidisciplinary team to util
Jan 1, 2006
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The Effect of Confinement on Ground Vibration Amplitude
By Jay Rodgers
There has been a longstanding acceptance that burden plays a major role in the magnitude of ground vibration amplitudes generated from surface blasting. Much of the data that this belief is based upon
Jan 1, 2003
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Gravois Bluffs: Review of a Successful Large-Scale Blast-Monitoring program.
By David Weidner
Public relations, regulatory compliance, determination and implementation of pre-blast inspections, and accurate blast monitoring data are all essential components when conducting blasting operations
Jan 1, 2001
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Analysis of Sympathetic Detonation in Detonating Cord
By Abigail Styer, Paul Holmgren, Josh Calnan
Detonating cord is a staple of the explosives industry, used widely in the civil and defense industries. Detonating cord is a thin, flexible plastic tube filled with pentaerythritol tetranitrate (PETN
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A Model for Near and Farfield Blast Vibration Based on Multiple Seed Waveforms and Transfer Functions
By D. Scott Scovira, Ruilin Yang
Blast vibration in the highwall from a cast blast in open pit mines or in the hanging walls from a stope blast in underground mines is a common concern. Vibration in such cases is a typical near-field
Jan 1, 2010
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The Effect of Calculated Explosive Energy Output on Blast Design
By P D. Kasbanis, Lyall Workman
"The energy output of an explosive is typically calculated using an equation of state and computerapplications. Results are reported as weight and bulk strength, either in absolute terms or relative t
Jan 1, 1996
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Measuring Blast Movement to Reduce Ore Loss and Dilution
By Darren Thorton, David Sprott, Ian Brunton
Blasting causes movement of the rock and can be detrimental to the accurate delineation of the ore and waste regions within the resulting muck pile. The consequences can be ore loss and dilution. Howe
Jan 1, 2005
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"Journal: Evaluating and Managing Blasting Risk Part II"
By Gordon Revey
The challenge of managing blasting risk, types of risk, public perception, and a system for managing risk were covered in the first part of this article in the May/June 2000 issue of the Journal of Ex
Jan 1, 2001
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The 9th International Symposium on Rock Fragmentation by Blasting, Fragblast 9, 14-17th of September 2009, Granada, Spain
By Agne Rustan
The 9th International Symposium on Rock Fragmentation by Blasting was held in the Granada Conference Centre, Granada, Spain from the 14th - 17th September 2009. The Symposium was preceded by a 1 ½ day
Jan 1, 2009
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Back to the Basics; Nonelectric Initiation Shock Tube Systems, Part 2: General Applications
By Larry Schneider
I n the simplest application of a shock tube initiation system, the tubing acts as a “relay line” which passes a detonation signal from borehole to borehole. When the signal arrives at each borehole,
Jan 1, 1995
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The Field Application of a Low -Cost Shock Sensor
By Rob Farnfield, Charlie Adhock
The measurement of near-field shock has always been an attractive proposition for those working in the field of explosive and blast performance. The most commonly employed technique involves the use o
Jan 1, 2005