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Burden Profiling: Do You Measure What You Think You Do?
By Greg Shapiro, Paul Dr. Worsey
Mining, quarry, and construction blasts are becoming more and more dependent on bench profiling. The use of accurate profiling gives the blaster better data for the most efficient blast results. So,
Jan 1, 2019
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Automation of Drill and Blast - Measurement Techniques to Develop Standard Procedures (a3ef629c-b178-4045-bc88-d04c273fd2c0)
By Ewan Selers, Gary Cavanough
Drilling automation technology is well advanced and automated drill rigs are in use at a number of operating mines. This is not the case for the other drill and blast processes due to significant tech
Jan 1, 2016
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Analyzing and Modeling Presplit Vibration Attenuation to Improve Mine Productivity
By Tyler Rockley, J. P. Remi Proulx, Ruilin Yang
A highwall blast vibration project was carried out to quantify the level of blast vibrations produced from a trim blast in soft rock and a combined production and trim blast in hard rock. Combining pr
Feb 1, 2020
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Improved Blasting Economics at an Uzbekistan Copper Mine
By Viktor Aranovich, Thomas E. Brown
The Almalyk Integrated Mining and Metallurgical Plant is located near Tashkant in Uzbekistan and is one of the former Soviet Union's largest copper producers. Almalyk consumes about 10,000 metric tonn
Jan 1, 1998
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Case Studies Using the Multiple Blasthole Fragmentation (MBF) Model at Open Pit Mines in Canada
By Scott King, Norm Patterson, Ruilin Yang
The multiple blasthole fragmentation (MBF) model developed by Orica models the contributions from multiple blastholes to fragmentation at any given point in the rock and simulates a production blast w
Jan 1, 2018
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Explosion Hazards and Quantity-Distance Regulations – A Review of their Physical Basis
Currently there exist several explosive quantity-distance (Q-D) rules variously exercised by most countries to protect personnel and property against the effects of accidental explosions. These regula
Jan 1, 2011
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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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A full-field solution to predict vibrations in the presence of a free surface
By J. A. Sanchidrián, P. Segarra, S. Gómez
Blasting is a common activity in mining that can cause significant damage in the remaining rock mass. The most commonly used method for predicting vibrations is the Swedish or Holmberg-Persson approac
Jan 1, 2024
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Crack Displacement and Vibration Measurement of an Underground Portal
By Douglas Rudenko PG, Jay Elkin, Siavash Mahvelati Ph. D.
Very little studies have investigated the behavior of cracks in unlined tunnels over long periods of time, especially when such flaws are subjected to blast-induced vibrations. Using a pool of 30+ bla
Feb 1, 2020
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Shock Impedance Method Applied to Detonation Pressure Measurements
By Santiago Gómez, Pablo Segarra, José A. Sanchidrián
In-hole detonation pressure measurements are unusual in the production environment of a mining operation, partly owing to the hostile conditions to which recording equipment and pertinent probes must
Feb 6, 2023
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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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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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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 Blast Evacuation Zones using the "Exclusion Zone" Module
By C. Morel, P. Fredes, L. Rojas
This article presents a comprehensive study on the development and application of the specific module called "Exclusion Zone" created by Orica to determine blast evacuation exclusion zones. This modul
Jan 1, 2024
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Better Fragmentation Through Team work At Dos Pobres Mine Safford, Arizona
By Denard Brandt, Isidro Martinez, Greg Baker, Laura Slattery, Teddy French
The Dos Pobres Mine is a copper oxide heap-leach mine located near Safford, Arizona. Mine production is 180,000 tons (163,293 tonnes) per day with a stripping ratio of 2:1. During the startup phase of
Jan 1, 2010
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Design of a Passive Underwater Pressure Gauge
By S. Lim, G. Walsh, V. Romero
The cable television show, Mythbusters, contacted the New Mexico Institute of Mining and Technology requesting a pressure gauge to be used in underwater testing. The requirements for the gauge were: i
Jan 1, 2009
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Underground Longhole Blasting near Large-diameter Booster Fans
By Norm Disley, Kingsley Hortin, Gertjan Bekkers
As part of the expansion of the Kidd Creek Mine to 2,682 meters (8800 feet) below surface, two largediameter 3000kW (4000HP) booster fans were installed at the 6000 level. Shortly after commissioning
Jan 1, 2008
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Inverse Hybrid Method for Determining Pressure Loading on Plates Due To Buried Mines
By Damien Bretall, William Fourney
Due to the changing face of warfare there is an ever growing need to protect the underside of combat vehicles from mine blasts. This paper presents a new method to better characterize the pressure pro
Jan 1, 2009
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Safer Blasting Using Electronic Detonators With Integrated Temperature Measuring Capabilities
By G Mendoza, L Taddei, C Robertson
It is a well-known industry fact that many mine sites around the globe experience blast holes that have elevated temperatures due to reactive ground, geochemical reactions, geomorphic reactions, sub l
Jan 21, 2025
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Rock Slope Remediation on the Pennsylvania Turnpike
By Ron Woolf, Corry Goumans
With increasing traffic volumes experienced thro u g hout North America, a common goal for Highway officials is to keep traffic flowing as much as possible and to keep disruptions to the flow to a min
Jan 1, 2003