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Implementation of Combined Blasting at Oyu Tolgoi
By Bilegt Batbold, Bayu Saputra, Chris Batten
The ability to fire multiple blasts simultaneously can provide significant benefits to any open pit mining operation. Reduced blast-related downtime by reducing blast events can increase equipment uti
Jan 21, 2025
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Airblast Reduction from Effective Blasthole Stemming
By Duane Skidmore, Francis Otuonye, Calvin J. Konya
Proper stemming not only affects the rock breakage process, but also controls the unwanted side effects of blasting such as airblast, ground vibration, and flyrock. Little research has been conducted
Jan 1, 1982
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Advantages in Using Real-Time Blasting Simulation in Surface Blast Planning and Grade Control
By Peter Dare-Bryan, Will Hunt, Lee Julian
It is well-known that blasting has an economic effect on grade control activities. However, until recently, methods did not exist for measuring the grade control value change caused by the blast. Rule
Feb 6, 2023
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A Proposed Test Program To Improve Explosive Risk Management
By Lon Santis, Michael Swisdak, David Leidel, John Tatom
The Institute of Makers of Explosives (IME) and A-P-T Research, Inc (APT) have developed and released a quantitative risk management tool, IMESAFR (IME Safety Analysis For Risk), for the commercial ex
Jan 1, 2012
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Blasting Improvements by Using Most Active Rock Variations on Blast
By Alain Blanchier, Anne Charline Sauvage
Rock mass variations have a huge influence on explosives efficiency and on blasting results. Numerous blasting improvements could be gained by taking into account rock mass and its variations. However
Jan 1, 2004
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A Novel Prediction of Blasting Vibration Parameter
By Bin Feng, Xiang Fang, Tao Guo, Fandong Lu
Abstract: Rough set theory (RS) can find useful information from a large number of data and generate decision rules without prior knowledge. Support vector machines (SVM) have good classification perf
Jan 1, 2014
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Modeling Rock Fracturing in Bench-Blasting Problems
By J S. Kuszmaul
"A computational model of rock blasting is being developed to examine the blasting problems associated with in situ oil shale processing. This model, however, will also be useful as a design tool for
Jan 1, 1987
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Progress in Studying Low Frequency Vibration Waves Caused by Blasting
By Eduardo Gonzalez Fernandez, Jaime Rios Vazquez
This report substantiates the connection that always exists between explosives and vibrations and draws attention to low frequency vibrations, which are the moat dangerous for the structures affected.
Jan 1, 1986
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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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Case Study: Systematically Improving Drilling and Blasting Operations in Hard-Rock Mines
By Reinhold Daykin, Piers Wendlandt, Nathan Rouse
Drilling and blasting are key components of every hard-rock (i.e., metal/nonmetal/coal) mining operation. Well-executed and maintained drilling and blasting can have a major positive impact on the ove
Feb 1, 2020
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Hole Cleaning Improvements through Tricone Bit Lug Design
By Clarence Zink
Aside from the mechanical properties and process of actual rock breakage, rotary drill bit performance is affected by several “post breakage” items: cuttings size, flushing air pressure, flushing air
Jan 1, 2006
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A New Way of Looking at Risk and QD Compliance
By Lon Santis, Michael Swisdak, John Tatom
The Institute of Makers of Explosives (IME) and A-P-T Research, Inc. (APT) have developed a quantitative risk assessment tool called IMESAFR (IME Safety Analysis for Risk) for managing risk from vario
Jan 1, 2013
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Investigative Studies on the Explosives Characteristics of Loxite Explosives
By Kamal Wadhwa
Liquid oxygen explosives have been used in India for well over 5 decades now. These are being extensively used both for shallow and deep hole blasting in the various opencast mines and quarries for mi
Jan 1, 1991
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Blasting Near Communities: A review of new techniques and technologies to minimize the impact generated by blasting
By L. Muñoz, L. Steffen, J. Alarcón, W. Vilas
Today, mining operations close to communities face increasing challenges, especially in their drilling and blasting operations. Proper management of environmental impacts is important to guarantee the
Jan 1, 2024
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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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Wall Control Blasting at the Manassas Quarry
By J Lyall Workman, Peter N. Calder
The Manassas Quarry is a large industrial stone quarry in Northern Virginia owned and operated by Vulcan Materials Company. The quarry experienced instability in a portion of the north wall, which inc
Jan 1, 1992
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Peculiarities of Drilling and Blasting in Underground Small-Scale Mines
By Patricio González Santis, Jacopo Seccatore
This paper documents drilling and blasting activities from gold mining in Ecuador and Chile. First, are described the outdated and often non-rational techniques employed by miners, to provide a genera
Feb 1, 2020
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Ground Vibration Attenuation Rate due to Blasting in South Florida
By W. Sharkey Bowers
This study was undertaken in order to determine a conservative estimate of the attenuation rate of vibrations through the shallow limestone in South Florida due to quarry blasting.
Feb 1, 2020
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Development of the Wireless Initiating System Using Microwave Power
By Masanobu Morita, Koichi Kurokana, Kenji Hashimoto, Yoji Tasaki, Yukio Iida
"It has been the long desire of blasting engineer to realize the automatization of tunnelblasting to improve the safety and efficiency. As for bore hole drilling, the automatizationhas been achieved b
Jan 1, 1993
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Measurement of the Vibration Delay Window for an Iron-Ore Mine
By Maria Sullivan
There have been many papers and articles presented over the last 60 years questioning the relevance of the 8-millisecond blasting delay window as an ‘Industry rule of thumb’. The concept of using dela
Feb 6, 2023