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Blast Modeling with DMC-BLAST - Open Pit and Underground
By Dale Preece, Stephen Chung
The DMC-BLAST (Distinct Motion Code) has been developed for modeling bench blasting to one or two free faces such as choked blasting in surface gold operation and cast blasting in coal mining, respect
Jan 1, 2000
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Blast Spillover Control
By Jonathan Heiner
Rio Tinto Bingham Canyon Mine started its South Wall Push Back (SPB) in 2011. This push back will mine through the only road to the pit bottom (the 10%). The pit bottom is the main ore sector for th
Jan 1, 2019
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Blast Desification Techniques (An Operator's Guide)
By Patrick D. McLaughlin, C Fordham
"The project outlined in the accompanying paper was to densify beach sands on the pond side ofa tailings dyke to the strength required for future dyke construction, This was to be achievedthrough the
Jan 1, 1992
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The Mitigation Effects of a Barrier Wall on Blast Wave Pressures
By Nathan Rouse
This blast mitigation study examined the effects of a barrier wall on explosively driven pressures. This area of blast mitigation is of interest due to the many different applications involved in prot
Jan 1, 2012
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Contribution of Up-to-date Modeling and Blast Surveying Technologies to the Improvement of Semi-empirical Flyrock Models
By Ricardo Chavex, Adrien Letellier
Flyrock remains one of the most critical issues in open-pit blasting. Despite the significant improvements made with modern surveying methods, the necessity remains to define sensible danger zones aro
Jan 21, 2025
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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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Carbon Monoxide Poisoning at a Swface Coal Mine . . . . A Case Study
By Thomas Kovalchuk, Kenneth Eltschlager, William Shuss
In April of 2000, two adults and their newborn infant, were poisoned by carbon monoxide in their home and received medical treatment at a Pennsylvania hospital. Carboxyhemoglobin levels were; child -
Jan 1, 2001
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A Coyote Blast at Rhone-Poulenc's Maiden Rock Silica Quarry
By John C. Adams, Darrel D. Porter
After conventional drill and shoot methods were determined to be unfeasible due the fractured nature of the ground, a "coyote" blast was designed to produce 250,000 tons of rock from Rhone-Poulenc's M
Jan 1, 1993
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Computer Modelling of Bench Blasting for Grade Control
By Lindsay Wade, Peter Dare-Bryan
Benches in surface mines often contain known areas of ore and known areas of waste, which must be mined selectively. When rock is blasted it not only fragments but is also physically, and non-uniforml
Jan 1, 2001
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Evaluation of the Fragmentation Size Distribution Resulting from Blasting as Derived from Basic Principles
By Roger Favreau, Patrice Favreau
The article reviews the aspects which contribute to the quality of the results from a blast with explosives, namely a good floor, no large blocks, easy mucking, and explains the mechanisms of the blas
Jan 1, 2012
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Study of the Detonation Process of Novel Hydrogen Peroxide-based Explosives Using High Speed Video
By Italo Onederra, Miguel Araos
"In order to characterize non-ideal explosives, the explosives industry rely on unconfined velocity ofdetonation tests and where possible underwater pond tests. The information obtained from such test
Jan 1, 2017
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Automatic Blast Design Based on Autonomous Drone
By Thierry Bernard
New technology to automatically design a blast based on autonomous drone. The process of flying a drone, calculating the 3D cloud of points, generating the critical face profiles and placing holes aut
Feb 1, 2020
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ICI's Computer Blasting Model SABREX - Basic Principles and Capabilities
By J P. Tidman, I J. Kirby, G H. Harries
The SABREX computer model is based on the fact that both shock waves and gas pressure are important in describing a blast. The treatment of explosive-rock interactions includes the influence of non-id
Jan 1, 1987
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Urban Tunneling for the MWRA's Boston Harbor Clean Up
By Gordon C. Petersen, Gary A. Almeraris
This paper describes the controlled blasting techniques required to mine a rock tunnel section of a main interceptor located in the Boston Metropolitan area. The 3m (10 ft) x 2.8m (9.25 ft) horseshoe
Jan 1, 1991
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Improving Blast Preformance with High Density Toe Loads
By John Floyd, Larry Wardrip
A series of tests were conducted to evaluate the performance of a high density, high velocity cartridged explosive. The tests included two production blasts in a limestone quarry and two production bl
Jan 1, 2002
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Implementation of Blast Vibration Frequency Control Technology at R & F Coal Company
By Doug Johnson
This paper reviews the field implementation of R & F Coal's blasting optimization work concerning analysis, prediction, and control of overburden blasting vibrations using site specific measurements a
Jan 1, 1988
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On Board Excavator Dilution Detector
By Benjamin Cebrian
The new technology presented in this paper is a patented system that is installed on board excavators (backhoe or front shovel types). Several control points are set along ore/waste contacts and their
Feb 1, 2020
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Blasting-Related Carbon Monoxide Incident in Bristow, Virginia
By Richard J. Mainiero, Marcia L. Harris, James H. Rowland
In the past several years, there have been a number of blasting-related carbon monoxide migration incidents. In each case, there have been some common factors that appear to be related to carbon monox
Jan 1, 2004
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Blast Optimization from Drone Imagery
By Markus Pötsch, Andreas Gaich
Optimization of surface blasting based on 3D models from drone imagery and a closed loop that starts with an automatic analysis of the geometry and the geological conditions and ends with an objective
Feb 1, 2020
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Method for Developing Explosion Damage Potential Contours in Urban Areas
By Braden Lusk
The problem of predicting damage in densely developed areas due to incidental or malicious explosions is one of considerable importance to local, state, and federal governmental bodies. The difficulty
Jan 1, 2010