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Using Acoustic Sonobuoys to Detect Underwater Explosions
By H. R. Maggard, C. M. Bollinger
Solving the problem of detecting underwater explosions from "dynamite fishing" can be done by using a system of sonobuoys programmed to detect the acoustic waves from underwater explosions. The system
Jan 1, 2004
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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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Rock Removal Techniques and Equipment in Trench Excavation and Pipeline Construction. A Comparison
By Benedict C. Di Duca
In the underground construction industry. when bidding work, not only is the contractor faced with determining if rock: is in existence within the parameters of his work. he must also estimate the qua
Jan 1, 1990
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A Review of Rock Classification Methods and Applicability to Blast Design
By Hae-Moon Choi, Sang-Don Lee, Hee Soon Shin, Choon Sunwo, Chang-Ha Ryu, Hyun-Koo Lee
Building tunnels means dealing with what rock is encountered. Relocation of the site of the underground structure is rarely possible. Tunneling engineers and miners have to cope with the quality of th
Jan 1, 2004
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Plug Blast for a Powerhouse Intake Using an Unusual Technique
By Terry Matts, Bruce Ripley, Clark Fletcher, Paul Rapp, Stan Holtby, Jim Dent
The Stave Falls Project of BC Hydro, situated 65km east of Vancouver, BC, Canada, involved the construction of a new two-unit 9OMW hydro-electric facility to replace an existing powerhouse. The final
Jan 1, 2000
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Pneumatic Stemming of Horizontal Holes with Particulate Material
By Clay McNail, Paul N. Worsey, John Schillie
"This paper is the result of undergraduate student research over the period of 2 semesters at UMR, which was focussed on developing a practical way to pneumatically stem horizontal boreholes, mostcomm
Jan 1, 1999
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Blasting Techniques to Prevent Coal Loss and Damage
By Visitor Makiyi, Chris Batten
Poor coal recovery due to coal damage or loss caused by blasting can have a significant impact on a mining operation. Increasing coal recovery by reducing blast damage can provide a significant opport
Jan 21, 2025
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Shaft Holing Project at Bulyanhulu Gold Mine, Tanzania
By W. De Graaf, C. Mkumbo
Bulyanhulu Gold Mine Limited (BGML) commissioned a project of sinking a Bulk Air Cooling Shaft during its programme to improve the ventilation system on the mine. As part of this project, a ventilatio
Jan 1, 2011
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Effects of Environmental Factors on the Performance of Anfo Tests in Turkey
By M. Oguz Ozkazanc, Gulsev Uyar Aldas
Because of its safety, being easy to handle, relatively inexpensive and containing a lot of energy, ANFO is the most popular and widely used explosive in Turkey as well as other countries in the world
Jan 1, 2001
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Portable Rock Fragmentation Sensing Using 3D Imaging
By Ian Bell, Shahram Tafazoli, Bahram Sameti, Aylin Azmin, Edmond Chow, Nima Ziraknejad
Image-based rock fragmentation analysis methods have been applied by blast engineers to estimate rock size distribution for over 25 years. These methods utilize a wide range of image segmentation tech
Jan 1, 2014
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Surgical Blasting for Paleontological Evidence, Dominion Range, Antarctica
By Quentin L. Rhoton
"The use of explosives in a surgical manner was approved to facilitate, due to time constraints, anextremely significant paleontological find in the Plunket Point area of the Dominion Range, Antarctic
Jan 1, 1999
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Trial Study--Self Consuming Detonators to Reduce Ore Contamination
By Kurt B. Oakes, Brian M. Fortelka
Unimin Corporation operates an underground Silica Sand mine at Guion, AR located in North Central Arkansas. The Silica Sand deposit at Guion is part of the St. Peter Sandstone Formation, which is over
Jan 1, 1999
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Hydraulic Boulder Fragmentation using Small Explosive Charges (e17fa3e4-a011-4982-aee2-a189f0d0465a)
By Bryan J. Lane, Paul N. Worsey
The recommended maximum explosive weight for boulder blasting using internal charges is 0.1 O-kg/m” (3.5 oz./yd) (Olofsson, 1988). Normally this charge results in excessive scattering and flyrock, cre
Jan 1, 1999
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Demolition Using Water-Cased Kicker Charges
By Emily Johnson, Catherine Johnson, Rachel Bauer, Paul Pitzel
Demolition projects involving explosives may incorporate cutting charges to sever columns in collaboration with kicker charges that “move” the columns out of alignment. Traditional kicker charges ofte
Feb 6, 2023
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Factors Affecting Fumes Production of an Emulsion and ANFO/Emulsion Blends
By Donald Hurd, James Rowland, Richard Mainiero
In previous conferences the authors have reported on toxic fumes generated by the detonation of ANFO. The research reported here extends the earlier work to include an emulsion blasting agent and ANFO
Jan 1, 2001
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Blast Optimization through Long Term Fragmentation Analysis
By Florian Bauer
The Fording River mine in British Columbia produces hard coking coal in an open pit operation. Coal seams are exposed by blasting overburden and digging blasted muck with rope shovels. The drilling an
Jan 1, 2014
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Optimization of Underground Blasting Techniques for Electronic Stope and Raise Blasts
By Juan Pablo Guevara, Victor Munoz, Rob Bush, Gonzalo Marias
Cerro Negro Mine, property of Goldcorp Inc., is in the process of developing four separate underground access ramps for the exploitation of high grade, narrow vein gold deposits with vertical to sub-v
Jan 1, 2015
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Measuring Blast Induced Damage by Applying the MASW Geophysical Method
By Charles Zdazinsky
Many blasting applications in the mining industry demand that the hard rock being blasted remains structurally competent. For example, pre-splitting is a common technique to reduce fracturing, and ope
Jan 1, 2011
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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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Coupled Rock Motion and Gas Flow Modeling in Blasting
By Steven D. Knudsen, Dale S. Preece
The spherical element computer code DMC (Distinct Motion Code) used to model rock motion resulting from blasting has been enhanced to allow routine computer simulations of bench blasting. The enhancem
Jan 1, 1992