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Field Investigations into Blast Design Parameters of Highly Jointed Rockmass of Overburden: A Case Study of Large Opencast Coalmine (India)
By V R. Sastry, D P. Singh, N R. Thote
Rock parameters which are uncontrollable impose restrictions on the procurement of desirable fragmentation. Blast design parameters which are controllable prove to be important tool in blasting operat
Jan 1, 1995
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Evaluation of Schedule IV-Type Containers
By D Wilson, E Nagy, R A. Augsten, R R. Vandebeek, R L. Guilbeault
The Canadian Explosives Research Laboratory (CERL), is evaluating the status of the Schedule IV explosives container as it presently pertains to the industry. The Schedule IV container serves the same
Jan 1, 1990
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Open Pit Wall Control Analysis using Photogrammetry
By Charles Zdazinsky
Back-break induced from blasting is a concern in open pit metal mining because it compromises the conditions of the pit’s final walls. Final walls that have excessive blast induced damage commonly req
Jan 1, 2014
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Protecting a Gas Pipeline from Cast Blast Induced Vibration Damage
By Sterling Ziegler, Kameron Ray
Mining operations at a Wyoming coal mine were progressing to within 300 feet (91 meters) of a high pressure natural gas pipeline. Vibration levels from cast blasting were at a point at which standard
Jan 1, 2018
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Managing Commercial Explosives Operations Using Quantitative Risk Assessment
By Lon Santis
This paper describes several applications of quantitative risk assessment in the management of commercial explosives operations. The Institute of Makers of Explosives’ (IME) quantitative risk assessme
Jan 1, 2008
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Application of Factor of Safety Concept for Evaluation of Flyrock Risk in Some Limestone Mines
By A K. Raina, P B. Chourdhury
Flyrock is the unwanted throw of rock fragments to excessive distances in opencast blasting. The incidence is relative in nature incorporating the distance of objects of concern like structures within
Jan 1, 2008
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Are Electronic Initiation Systems the Unique Answer to Solve Blasting Issues?
By Jesus A. Pascual de Blas
After 30 years of development and introduction, electronic initiation systems are now well established in blasting applications, both mining, quarrying and civil works. In terms of blast technology, i
Jan 1, 2019
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The Effects of Fault Planes on the Propagation of Vibration Waves
By Abdulkadir Karadogan, Zikri Keti, Umit Ozer, Mehmet Aksoy, Ulku Kalayci
This paper presents an investigation about how the motions of blast induced vibration waves were affected by the presence of the fault planes. This study was carried out at Espey Open- Pit Boron (Cole
Jan 1, 2012
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A Reanalysis of Fragmentation Data from the Red Dog Mine
By Finn Ouchterlony
"Recently detailed fragmentation data from blasts fired with electronic delay detonators (EDDs) in the Red Dog mine in Alaska were presented. They include a comparison with pyrotechnic detonators ford
Jan 1, 2012
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Stope Blast Improvement by a New Blast Design in Leeville Underground Mine
By Miquel Lamadrid, Changshow Sun, Chris Johnson
To reduce blasting overbreak and improve stope stability, several new blast designs were proposed for current and future stopes. Based on the analysis of the powder factor, and the extent of damage zo
Jan 1, 2008
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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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Double Deck Blasting for Rapid Tunnel Advance in Hong Kong
By Rohan Stevens, Katsuhiro Kameyama, Osamu Iwata, Jinming Liao
In densely populated cities such as Hong Kong, where unoccupied space is becoming more valuable as the population grows, city planners are more often looking to underground space to meet the increasin
Jan 1, 2013
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Field Testing of Aluminum Mesh for Blast Mitigation Properties
By Joshua Hoffman, Braden Lusk, Kyle Perry
Despite its porous and lightweight characteristics, aluminum mesh is believed to have blast mitigation properties. The current use of the mesh includes fuel tanks for airplanes, boats, and fuel statio
Jan 1, 2009
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Shockwave Consolidation to Densify Powders into a Bulk Material
By David Nemir, Jan Beck
A challenge in materials science is the production of a bulk solid material from a powder precursor. One solution is to use shockwave consolidation whereby a ductile tube is loaded with the powder of
Jan 1, 2016
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The Use of High-Speed Motion Picture Photography in Blast Evaluation and Design (23c6f2b6-16c1-4f76-b2cd-4d87a79d67ba)
By P J. Dailey, S L. Burchell, R F. Chiappetta
High-speed motion picture photography and its application to the mining, quarry, construction, and explosive industries has proven to be a valuable diagnostic tool. The techniques developed allow one
Jan 1, 1983
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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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Lessons Learned from Blasting in Highly Weathered Sandstone
By Tyler Rockley, Greg Bailey
This paper is an engineering case study of a blast performed on a highly weathered sandstone isthmus in an area sensitive to vibration and airblast, the challenges associated with such a blast, the me
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Using Artificial Intelligence and 3D Imaging to Provide Real-time Particle Size Analysis on Haul Trucks
By Saeed Karimifard, Saman Nouranian, Shahram Tafazoli, Bahram Sameti, Frank Chu, Caitlin McKinnon, Tetiana Konstantynivska, Glen Turner
Continuing blast optimization is the cornerstone of any mine-to-mill approach, and particle size analysis is a key metric for meeting blast targets to reduce overall energy consumption and operating c
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Don't Wage War in the Media, or Be Silent and Forfeit It All!
By S D. Cummings
"CRACKS CONCERN CORPORATION" Was the headline on the front page of the Terre Haute Tribune Star, March 1994. Having spent several years following up on blast-induced damage allegations made this artic
Jan 1, 1995
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Rockbreaking Characteristics of Various Mining Explosives in Small Diameter Holes
By J R. Brinkmann
The South African gold mining industry presently uses four different types of explosives in stope blasting. There is general agreement that the type of explosive has considerable effect on Important b
Jan 1, 1989