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Analytical Measurements in Cast Blasting to Identify the Cause and Cure for "Orange Smoke" Formation
By Charles R. Barnhart
The Nitrogen Dioxide Cloud: After one year of testing it can be stated that we do know and understand a great deal about why the nitrogen dioxide formation is exacerbated in cast blasting. Picture 1 i
Jan 1, 2004
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Electronic Detonator Timing Approaches for Surface Quarries and Metals Mines
By Tristan Worsey, Nathan Rouse, Evan Thibaud
Electronic detonators allow for variability and accuracy with blast delay selection and timing sequence. However, a single published guideline for selection of electronic timing delays is not availabl
Jan 21, 2025
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An Empirical Method of Comparing Brisance of Various Bulk Explosives
By Neal Lee, Braden T. Lusk, Brendan McCray
"Selection of a blasting agent for optimum performance is based on many variables. Often, a decision is made with regard to product cost and field testing. Defining optimum performance can be difficul
Jan 1, 2017
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Shock and Transient Gas Pressure Damage to Electronic Detonators
By G. Adderley, Rob. Farnfield, L. Bermingham
The benefits of using electronic detonators within the drilling and blasting process in both surface and underground mining operations are well established and the use of this technology is widespread
Jan 1, 2024
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Journal: 100 Years / The Piercing of The Simplon The Century Magazine New York June 1905 / Driving Headings in Rock Tunnels
By Robert Hopler
THIS paper deals specifically with heading-driving as distinguished from the broader term tunnel-driving. A heading is a pilot or path-finder for the main tunnel. Some headings are complete tunnels in
Jan 1, 2010
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Performing decking with the use of an inflatable plug in high or total submergence applications in blastholes to improve final wall profile & stability
By Glenn Tobin
The overarching goal in modern drill and blasting operations is that of optimising mining operations to achieve higher levels of productivity, safety, profitability and sustainability. Air decking, a
Jan 1, 2012
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ANFO is not always ANFO
By Erik Nygaard, Klaus Voges
ANFO is the most used industrial blasting agent in the world, and is often used as a reference for comparison of other explosives. It is known to work very well under dry conditions in large borehole
Jan 1, 2001
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" A Good Neighbors Policy"; the Evolution of O & G Industries, Inc.'s Public Relations Policy Working With the Local Towns
By Douglas R. Simms
O & G Industries, Inc. owns and operates a number of rock quarries within the State of Connecticut. These rock quarries are surrounded by residences and commercial neighbors who have concerns related
Jan 1, 1994
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Productive Partnership – Advanced Blasting Technology at Newlands Coal Mine
By Les Willan, Chris Batten, Matt Sparkes
In late 2008 Xstrata Newlands Coal Mine in Central Queensland and Orica Mining Services engaged in discussion to investigate methodologies to change their current mining practices and overcome the iss
Jan 1, 2010
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Journal: 100 Years / Illinois Powder Manufacturing Company Catalog issued May 1, 1909
By Robert Hopler
RBH Note: The Illinois Powder Manufacturing Company was established in 1907 and was acquired in 1957 by American Cyanamid. The latter company left the explosives business in 1969.
Jan 1, 2010
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Swedish Cautious Blast Excavation at the CSM/ONWI Test Site in Colorado
By Roger Holmberg, William Hustrulid
Swedish cautious blasting techniques were used to excavate a room at the CSM Experimental Mine in Idaho Springs, Colorado,as part of a ONWI/DOE sponsored nuclear waste disposal research program.
Jan 1, 1981
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Study of Ultrafines Control in Blasting
By A. Andrades, E. Arias, Y. Pizarro, J. Alarcón
Division Ministro Hales - Codelco (DMH) is located at 2600 meters above sea level, 10 km north of the city of Calama, Antofagasta region, Chile. In operation since 2010, it corresponds to a porphyry
Jan 1, 2024
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Blaster Training -- Is Anybody Listening?
By Robert C. Friend
On-the-job and "hands-on" training programs which attempt to train newcomers to blasting with instructors whose only qualification is their experience can easily miss the boat. Organized training prog
Jan 1, 1980
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Super Accurate Detonators - A Rockblaster's Dream
By Jan Westberg, Roger Holmberg, Bernt Larsson
Over the last couple of decades there has been an increased demand from the market for precision detonators, partly because of a need for better blasting results and partly because of a need for bette
Jan 1, 1988
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Evaluation Of Suitability Of Permitted Delay Detonators Vis-avis Their Delay Timing For Use In Underground Coal Mines
By Harsh Kumar Verma
Blasting off-the-solid is the most commonly used method during development of galleries in Bord and Pillar method of underground coal mining. In this method, only P5 explosives are used with permitted
Jan 1, 2008
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Implementation of Blast Vibration Frequency Control Technology at R & F Coal Company
By Doug Johnson
This paper reviews the field implementation of R & F Coal's blasting optimization work concerning analysis, prediction, and control of overburden blasting vibrations using site specific measurements a
Jan 1, 1988
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Safe Blasting Parameters And Seismic Influences During Construction Blasting
By Mario Dobrilovic, Zvonimir Ester, Vinko Skrlec, Vjecislav Bohanek
The first public garage in the city of Dubrovnik has been built in highly urbanized area, on location Ilina Glavica. The excavation of the building pit has been done partly by construction machinery,
Jan 1, 2009
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Minimising Coal Damage and Loss Due to Cast Blasting
By Tapan Goswami
The main objective of the blasting phase in a coal mining operation is to maximise the coal recovery. However, coal loss due to blasting is a serious problem. The Australian Coal Association Research
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Minimising Coal Damage and Loss Due to Cast Blasting
By Tapan Goswami
This paper discusses the importance of coal mapping, the rock properties of the roof and floor interface of the coal seam, and the significance of loading and initiating designs in minimising coal dam
Feb 1, 2020
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Application of Event Tree Analysis to Explosive Terrorism Risk
By Natalie Zeleznik, Brian Hawkins, David Bradley, Rachel Gooding, Patrick Wilson
"An Event Tree Analysis (ETA) is an established approach for logically deconstructing and assessing scenarios for probabilistic risk assessment. This deconstruction into a series of understandable eve
Jan 1, 2017