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Small Scale Model Testing in Investigations of Energetic Material -- Dynamic Effects LaboratoryBy L C. Taylor
Very small scale testing has been shown to be able to predict quite accurately, in many situations, the results of full scale testing. Small scale tests are more cost efficient, easily observed, and e
Jan 1, 2012
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The Effect of Irregularities on Soil-Air Interface Response Due to a Buried ExplosionBy Leslie C. Taylor, Scott A. Yamada, William L. Fourney
Previous studies have shown that the pressure load on a target by a buried explosive charge is not smoothly distributed. The effort reported here was undertaken to explore the mechanisms believed to c
Jan 1, 2012
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Debris Collection Efforts Following a Large-scale AN DetonationBy P. E. Hoffman, Joshua Ph. D.
The Institute of Makers of Explosives (IME) led a post-detonation debris collection project in conjunction with a large AN railcar detonation conducted by the Department of Homeland SecurityTransporta
Jan 1, 2019
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Improving Productivity in Pillar Blasting – HZL, Sindesar Khurd MineBy Deepankar Das, Gulshan Kumar Sadhwani, Jyoti Prakash Sahoo
Sindesar Khurd Mine (SKM), the largest underground mine in the Hindustan Zinc Limited portfolio, is located approximately 60 kilometers (37 miles) north of Udaipur. In the 2018 financial year SKM achi
Jan 1, 2019
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Seed Wave Modeling to Natural Caves Protection in Mining OperationsBy Alejandro Rosario, Ricardo González
The restrictions imposed by the Brazilian environmental legislation regarding natural caves lead to a block of substantial amount of mineral reserves. Mining activities can released caves, as long as
Jan 1, 2019
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Utilising a Dual Belly Auger MPU to Manufacture Bulked Inhibited ExplosivesBy Jason Rock, Rob Thompson, Lee Julian
Reactive ground is ground that undergoes a spontaneous exothermic reaction after it comes into contact with nitrates. This is commonly caused by inert rock hosting sulphide minerals, such as pyrites t
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Lake Dorothy, Alaska, Underwater Tunnel Piercing - The Norwegian WayBy Jan Mehren, Arild Neby
Underwater Tunnel Piercing or Lake Tap, often also called the Norwegian Method, will in many projects be an important part of the hydro electric development scheme. The very last blasting round in the
Jan 1, 2009
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String Loading at ValeBy Jennifer Paukula, Steven Lindsay, S. Joon Kim
String loading is the placement of a bead or ‘string’ of emulsion along the lower edge of a development drill hole. The loading hose extraction rate controls the amount of emulsion placed in each dril
Jan 1, 2012
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Stope Blast Improvement by a New Blast Design in Leeville Underground MineBy Miquel Lamadrid, Changshow Sun, Chris Johnson
To reduce blasting overbreak and improve stope stability, several new blast designs were proposed for current and future stopes. Based on the analysis of the powder factor, and the extent of damage zo
Jan 1, 2008
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Digital Tunnel Blasting in a Sensitive Environment: N1 Porto Tunnel Project, PortugalBy Yannick Bleuzen, Manuel Joao, Frederic Monath, Miguel Quaresma
The N1 Porto tunnel project is a 650m segment of large-scale civil engineering plan to improve traffic flow between Porto’s downtown district, the Santo Antonio hospital district and the highway acces
Jan 1, 2005
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Low Level Continuous Vibration and Potential DamageBy Edward J. Jr Walter, Edward J. Walter
The vibration problem is approximately fifty years old. The original investigation of the U.S. Bureau of Mines was begun in 1930. Significant investigation into the problem was done by Crandell, Lange
Jan 1, 1979
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Evaluation of Schedule IV-Type ContainersBy D Wilson, E Nagy, R A. Augsten, R R. Vandebeek, R L. Guilbeault
The Canadian Explosives Research Laboratory (CERL), is evaluating the status of the Schedule IV explosives container as it presently pertains to the industry. The Schedule IV container serves the same
Jan 1, 1990
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Earth Motions Resulting from Large Distributed Chemical Explosive DetonationsBy D Maxwell Ellett
This report presents an evaluation of knowledge concerning a process used in predicting ground motion resulting from large scale conventional explosive detonations, The shots were set off in Arizona i
Jan 1, 1976
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Open Pit Wall Control Analysis using PhotogrammetryBy Charles Zdazinsky
Back-break induced from blasting is a concern in open pit metal mining because it compromises the conditions of the pit’s final walls. Final walls that have excessive blast induced damage commonly req
Jan 1, 2014
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Effect of Blasting on Impact Breakage of the Resulting Fragments - Results from Small Scale TestsBy P D. Katsabanis, S Kim
A number of small scale fragmentation tests have been conducted to analyze the effects of blasting effort on the grindability of granite, granodiorite, limestone and iron ore. Powder factors were modi
Jan 1, 2011
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Low Frequency Long Duration Blast Vibrations and Their Effects on Residential StructuresBy A. K. Sirveiya
A major concern with blasting at surface mines is generation of ground vibration, air blast, flyrock, dust & fume and their impact on nearby structures and environment. A study was conducted at a coal
Jan 1, 2005
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Safety in the Industry: Recent Development in the Classification of Eexplosives Precursors – The Modified Vented Pipe TestBy David Kennedy, Noel Hsu, Miguel Araos
The use of bulk explosive for mining applications started in the 50’s. Since then millions of tons of that material have been transported by road. However during that time, there have been several roa
Jan 1, 2006
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A Laboratory Comparative Study of Slurries, Emulsion, and Heavy AN/FO ExplosivesBy R Heater, G Glynn
Various small diameter commercial grades of slurry and emulsion explosives were tested and compared. Velocity diameter curves for confined and unconfined charges were established and the effects of te
Jan 1, 1984
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Facing the Drilling and Blasting Difficulties at Helwan Quarry, EgyptBy M. Khaled, K. Abdel Rahman, M. Khattab
Helwan limestone quarry is located at a distance of 35 km (21.7 miles) to the south of Cairo downtown. Drilling and blasting operations are used to extract the limestone for the Helwan Cement Company
Jan 1, 2008
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A Reanalysis of Fragmentation Data from the Red Dog MineBy Finn Ouchterlony
"Recently detailed fragmentation data from blasts fired with electronic delay detonators (EDDs) in the Red Dog mine in Alaska were presented. They include a comparison with pyrotechnic detonators ford
Jan 1, 2012