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Vibration Data Analysis to Optimize the Blast Design and Improve Shovel Productivity
By Luana Ferreira de Carvalho, Aurelio Manço Garcia, Gustavo Sampaio Lopes, Jose Silvio Corsini, Davi Bastos Martins de Oliveira
The Enaex Mining Technical Solutions (EMTS) team, in partnership with the Anglo American Iron Ore Brazil drilling and blasting team, has developed a study aiming to optimize the blast design applied a
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Ammonium Nitrate Incident at Beirut and Key Learning to Improve Supervision and Management of Explosives Materials in Indonesia ALS IN INDONESIA
By Agung Wibowo
The incident of Ammonium Nitrate explosion in Beirut on August 4, 2020, became a wake-up call to Ammonium Nitrate stakeholders for mining and construction regarding the deadly risks associated with ex
Feb 1, 2020
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Vibration Data Analysis to Optimize the Blast Design and Improve Shovel Productivity
By Luana Ferreira de Carvalho, Aurelio Manço Garcia, Gustavo Sampaio Lopes, Jose Silvio Corsini, Davi Bastos Martins de Oliveira
The Enaex Mining Technical Solutions (EMTS) team, in partnership with the Anglo American Iron Ore Brazil drilling and blasting team, has developed a study aiming to optimize the blast design applied a
Feb 1, 2020
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Application of the NIOSH-Modified Holmberg-Persson Approach to Perimeter Blast Design
By Chick Kerkering, Stephen Iverson
Perimeter control blasting is common in civil construction projects but not as common in mining. A poorly designed and executed underground mine development blast design can result in unwanted wall ro
Jan 1, 2008
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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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Tunneling in Thinly Foliated Rockmass Conditions
By H. S. Venkatesh, G. Gopinath, R. Balachander, G. C. Naveen
Punatsangchu Hydroelectric Project Authority is constructing 1020 MW underground hydroelectric project in Bhutan. The project envisages construction of concrete dam, Desilting Chamber, Head Race Tunne
Feb 1, 2020
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Blasting Specifications and Guidelines for Protective and High-Profile Blasting
By Brian Lewis, Reinhold Daykin Schnell
Blasting specifications and guidelines are very important aspects of detailed project specifications covering any scope of work (SOW) that involves explosives and blasting procedures. A lot of larger
Feb 6, 2023
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Tunneling in Thinly Foliated Rockmass Conditions
By G. C. Naveen
Punatsangchu Hydroelectric Project Authority is constructing 1020 MW underground hydroelectric project in Bhutan. The project envisages construction of concrete dam, Desilting Chamber, Head Race Tunne
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Journal: Vibration Control Through Better Predictions
By Keith Best
It has been said that when a person does something right no one remembers but when they do something wrong no one forgets. This statement, when applied to the explosives industry, has never been truer
Jan 1, 2008
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Underground Mega Mass Blasting with Electronic Initiation Near Urban Area (d4770d5b-0062-4b3c-9658-460485a3a3f4)
By Jean-Francois Lagueux, Andre Pomerleau
Goldex Mine is an underground mine located near the town of Val-d’Or. Multiple innovations were required to work the mine. Due to its low grade, it was important to develop a bulk mining method to eco
Jan 1, 2011
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Using Photogrammetry and UAVs for Pattern Optimization, Quantification, and Mapping
By Tony Rorke, Tamara Wiseman
Due to the advancements in technology it becomes easier to obtain accurate measurements for mining, quarry, and construction operations even in the most remote places. The use of off-the-shelf photogr
Jan 1, 2015
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New Methodology in Measuring Experimental Results of Linear Shaped Charges Using Digital Software
By Kevin Phelps, Jason Baird, Philip Mulligan, Dominique Nolan
Determining the transitions from run-up to optimal cut length and optimal cut length to run down, without bias, from the penetration of a linear shaped charge (LSC) is difficult. The stresses applied
Jan 1, 2013
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Determination of Presplit Borehole Pressure
By Dr. Paul Worsey, Dr. Calvin Konya, Dr. Anthony Konya
Development of methods to calculate presplit blasthole pressures through simplified models, namely the Empirical Model and the Detonation Pressure Model. These models can be used with variations in ex
Feb 1, 2020
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Modern Underground Raise and Slot Design
By N. Rouse
Underground raises and slots are a vital part of underground blasting operations. Raises and slots are vertical shafts or openings used for ventilation, ore passes, or creating voids in stopes. In the
Jan 1, 2024
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Optimization of Ring Blast Design for Ore Dilution Control in Underground Hard Rock Mine Using Numerical Simulation
By A. Vishwakarma, V. Himanshu, K. Dey
Underground mining is the most feasible method after extinction of shallow depth ore deposits. Longhole stoping method is the most technically advanced method for the faster excavation. In this method
Jan 1, 2024
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Evaluating the Fragmentation Data from Copper and Gold Mines
By Sedat Esen
"This paper presents a critical review of the fragmentation data obtained from some large open pit copper and gold mines. Database ncludes 35 mines with Uniaxial Compressive Strength values ranging fr
Jan 1, 2017
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Blasting Seismographs: Transfer Functions, Standards and Accuracy
"In this work a blasting seismograph was tested on a vibration shaker controlled by a single-point laser Doppler vibrometer (LDV). A total of 43 tests were made to measure the transfer properties(tran
Jan 1, 2017
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EU Type Certification of Non-Standard Electronic Initiations Systems used in Blasting at Mines and Quarries
By Matthew Clay, Colin Chambers, Susan Hookham
Opencast (quarries) and underground mines around the world use blasting methods to mine valuable ore. Traditional blasting systems use technologies such as electric delay detonator systems (developed
Jan 1, 2017
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Single Shot Drawbell Blasting with Electronic Detonators at Freeport
By Bonifacio Degay, Mike Lovitt
PT Freeport Indonesia is a block cave mine that now utilizes an advanced undercut method to set up the min in the Deep Ore Zone (DOZ). In this method a slice of rock (undercut) is broken such that it
Jan 1, 2004
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Damage to Rock: Near Field Seismic Models Revisited
By Santiago Gómez, Pablo Segarra, José A. Sanchidrián
In this paper, differences between the industry-standard Holmberg-Persson (H-P) approach and a semi-analytical vibration prediction model called full-field solution (FFS) are analized. The analysis is
Feb 1, 2020