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Explosives Casting Technology in Surface Mining
By D E. Shaw, J B. Case, J Gusek
Explosive casting of overburden is defined as the use of explosives in blasting to move overburden to a spoil pile without rehandling. Studies of the economic feasibility of the method, and the formul
Jan 1, 1980
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Practical and Proven Methods to Control Blast Induced Coal Damage when Blasting Overburden
A major problem that has continued to plague the surface coal industry is blast induced damage to the coal seam. Atlas Powder Company has addresssed this situation through seven years of field researc
Jan 1, 1990
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Chilean Challenges in Underground Mining - Electronic Initiation System (IS) and Drill & Blast Engineering Focused Projects
By Manuel Villalobos Calderón
This paper presents the Enaex group approach to addressing the blasting challenges and outlines the solutions created. Aspects such as rock mass damage occurrence as a function of blast vibration freq
Feb 1, 2020
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Chilean Challenges in Underground Mining - Electronic Initiation System (IS) and Drill &Blast Engineering Focused Projects
By Manuel Calderón
Chile is responsible for 30% of the global copper production; the world ́s largest. However, significant challenges are faced in this industry; declining grades (1.13% in 2002 to 0.61% in 2015), high
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How Genetic Algorithms and Cloud Processing Optimise
By Mark Roberts
Automation, data analytics and optimisation are key trends in the mining industry. Doing more, and better, while expending less resources targets KPIs around efficiency and productivity. With the expl
Feb 6, 2023
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Winning thin coal seams with Stratablast™- improving coal recovery and sustainability at Anglo Coal’s Drayton Mine
By Matthew Graham, Tapan Goswami, Geoff Brent
In dragline coal mining operations, throw blasting is used for the controlled placement of overburden to maximise coal exposure rates or to minimise overburden removal costs. This may necessitate sacr
Jan 1, 2010
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Knocking Down Barriers to QRA Acceptance
By Jorge Flores, Dean Nichols
Some view quantitative risk assessment (QRA) as difficult to understand and complicated to use. They are comfortable with the proven reliability of quantity distance (QD) and question the benefits of
Jan 1, 2015
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Dust Control in the Environment Using New Technologies and Blasting Techniques.
By L. Muñoz, L. Steffen, W. Vilas
The emission of particulate material is one of the several parameters related to environmental control in mining operations near communities. Blasting is an event that generates and leaves a large amo
Jan 1, 2024
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The Special Nature of Rock Salt Blasting: Theory and Practice
By Jonathan D. Aubertin
The unique nature of rock salt blasting is compared to traditional hard rock practices. Rock salt geomechanical nature is discussed in the context of rock blasting events. A cratering mechanism preval
Feb 1, 2020
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Case Study Using 3-D Blast Modeling to Develop Design for Blasting in Close Proximity to Pit Pump
By Stuart Brashear, Steven Bell, Donald Smith
This Limestone site required the removal of a bench containing high quality rock located in close proximity to sump and pit pump. The sump and associated electrical box were below the bench that neede
Jan 21, 2025
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Elevated Temperature and Reactive Ground Testing Best Practices
By D. Fry, S. Hunsaker
Ammonium nitrate in explosives and sulfides in reactive ground have the potential to react at ambient and elevated temperatures resulting in premature detonations. The Australasian Explosives Industry
Jan 1, 2024
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Sequential Blasting Initiation System With Rf Control (Sbis–rf)
By Lazar Kricak, Zoran Teodorovis, Dragan Bogunovic
Scattering of delay interval around nominal value is an important issue in blasting practice. The scatter interval, as becomes wider, increases a probability of time delay overlapping adjacent blastho
Jan 1, 2008
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Blast Vibration Monitoring & Calibration in the 21st Century
By W. J. Birch, R. Farnfield
Nuisance caused by perceived high vibration levels as a result of blasting on quarries and opencast coal mine is now the number one environmental concern of residents living adjacent to such operation
Jan 1, 2014
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A Kinematic Approach for Blast Modeling
By Ruilin Yang
Kinematic approach of blast modeling refers to using the velocity, strain, or displacement as controlling parameters to model blasting, rather than the stress and the material constitutive relations.
Feb 1, 2020
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Simulation of the Rock with Karst Caves under Blasting Load
By Tie-jun Tao, Ming-sheng Zhao, En-an Chi
"Karst landform is a special kind of geomorphic unit which is often accompanied by a large number of geological defects: caves. In blasting engineering, if there are karst caves around the blast-holes
Jan 1, 2017
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Wall Control at the Freeport Grasberg Opencut Mine: Vibration and Gas Penetration Measurements as a Precursor to Improvements
By A. Spathis, I. Yacob, A. Labriola, G. Smith
Wall control is a significant issue for many mines. Improvements to the design process for blasts adjacent to temporary or final walls will require better measurement tools and predictive models. Oric
Jan 1, 2001
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Investigating Planer Propagation of a Shockwave in a Shock Tunnel
By Joshua Hoffman, Braden Lusk, David McLane, John Rathbun
The research conducted previously on Shock-Tunnel Waveform Analysis gave a brief insight into the propagation of a shockwave within a shock-tunnel compared to that of an open air arena test. As a refr
Jan 1, 2012
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Digital Signal Processign Applied to Seismology
By Thad M. Jones
This paper considers the sampling, digitizing and reconstruction of seismic signals. A sampling frequency range is proposed and a minimum limit is suggested. Digitizing precision criteria for both pea
Jan 1, 1985
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Review of flyrock incidents in surface mining and the limitations of current predictive models
By T. Szendrei, S. Tose
This paper will review several flyrock incidents that occurred recently in the South African mining industry to highlight that potential difficulties of the historical approaches to the problem of fly
Jan 1, 2024
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The Application of Ammonium Nitrate as an Improvised Explosive Precursor
By Kirk Yeager
During the last several years the FBI has been involved with a detailed study of explosives designed to replicate formulations utilized world-wide by terrorists. In addition, numerous formulations , b
Jan 1, 2001