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Determination of Presplit Borehole Pressure
By Dr. Paul Worsey, Dr. Calvin Konya, Dr. Anthony Konya
Development of methods to calculate presplit blasthole pressures through simplified models, namely the Empirical Model and the Detonation Pressure Model. These models can be used with variations in ex
Feb 1, 2020
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Risk-based Explosives Safety Assessment In Switzerland And Europe
By Andreas Bienz
The safety of persons from accidental explosions and fires during manufacture, storage, transport etc. of explosives, pyrotechnics, propellants, firework and ammunition is most commonly assessed accor
Jan 1, 2007
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Airblast Reduction from Effective Blasthole Stemming
By Duane Skidmore, Francis Otuonye, Calvin J. Konya
Proper stemming not only affects the rock breakage process, but also controls the unwanted side effects of blasting such as airblast, ground vibration, and flyrock. Little research has been conducted
Jan 1, 1982
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Application of the Selective Loading to the Rock Mass Characterized through Drill Monitoring for Autonomous and Manual Drilling Mode to Optimize Blasting Results in Open Pit Operations
By Jorge Blázquez, Pablo Ravanal, Paulo Couceiro, Juan Navarro
Blasting performance is influenced by rock mass properties and blast design parameters. From them, the rock is the only variable that cannot be modified, but it can be measured, so that, blast design
Feb 6, 2023
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Blasters' Survival
By John C. Brulia
The IME member companies, the ISEE along with its chapter organizations, the Federal, state and municipal regulatory agencies, and the industry consultants and suppliers have developed safety equipmen
Jan 1, 1994
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Explosive Induced Damage Potential to Earthfill Dams and Embankments
By D O. Doehring, W A. Charlie, W A. Lewis
The detonation of explosive charges releases large quantities of energy that can produce rock and soil deformations far from the detonation point Extensive data are available on blasting in general an
Jan 1, 1987
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SmokeFCM: Segmentation of Quarry Blast Smoke Plumes using Self-Adaptive Weighted Fuzzy C-Means
By E. Lentilucci, A. Dey, X. Liu, A. Datta, S. Ghosh
The segmentation of quarry blast smoke plumes is a crucial research area that has the potential to enhance safety, environmental monitoring, object detection, and regulatory compliance in the mining i
Jan 1, 2024
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Impact of Blasting on Resource Recovery, Mining Profit, Safety, and the Environment
By Z X. Zhang
If the iron ore loss is 15% in the process of mining, the total iron ore loss in the world will be about 461 million tons, this is equal to the total production of 230 iron ore mines each of which pro
Jan 1, 2014
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New Technologies in Electronic Blasting For Enhanced Safety and Productivity
By Raphael Trousselle, William Reisz
The blasting industry is now well into its second decade of commercial use of electronic detonators. As an increasing number of blasters are introduced to the technology, the benefits are becoming mor
Jan 1, 2012
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Full-Scale Testing of Delay Timing Effects on Rock Fragmentation in the Shock Collision Regions
By M R. Hettigner, J Nawrocki, C E. Johnson, P G. Cahill
This study evaluates the effects of both short inter-hole and intra-hole delay times on rock fragmentation and throw. Full-scale test blasts were analyzed at a granite quarry in Talbotton, GA. This an
Jan 1, 2017
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Modeling Reactive Sulfide Rock at the Red Dog Mine
By Norman Paley, Zachary Pickett
The Red Dog Mine is a high-grade zinc-lead mine located in northwest Alaska which began operations in November 1989. In June 2014 the upper half of a charge in a trim shot in the Aqqaluk pit deflagrat
Feb 1, 2020
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Implementation of an Integrated Quality Assurance and Control System Applied to High Complexity Blasting Open Pit
By Regina Rocha, Miguel Humpire
One of the challenges within unitary mining operations is blasting, which has a significant downstream impact on the following processes, which is why mining companies ensure the results of the blasti
Feb 6, 2023
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Impact of Open-pit Blasting on the Stability of Adjoining Multiseam Workings of Underground Coal Mine
By Ajoy Singh
A study was conducted to investigate the damage potential to underground multi-seam openings caused due to vibration generated by open-pit coal mine blasting. The objective was to recommend optimal ex
Jan 1, 2012
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Journal: 100 Years / A Trip Through The Anthracite Coal Mines
By Robert Hopler
RBH Note: in 1913 black powder was still dominant as a coal-mining explosive, but permissible explosives were making some slight headway. For example, in 1902 there were only 11,300 pounds of permissi
Jan 1, 2014
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Seismic Monitoring of Production Blasts
By Klaus G. Hinzen
Seismic observations offer the only possibility for remote sensing of physical processes like shock-front spreading, material crushing and ground movement. A better understanding of these processes wi
Jan 1, 1989
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Occidental's New Explosive Technology in Oil Shale
By Thomas E. Ricketts
Occidental Oil Shale Inc. has spent the last eight years at its Logan Wash. mine near DeBeque, Colorado, developing its modified in-situ oil shale process for obtaining oil from oil shale. Modified in
Jan 1, 1981
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Drone Technology Utilization to Increase Safety and Support Analysis for Blasting Process
By Ery Wardhana, Stefanus Jagad, Relinda Sanistya, Hasucita Tausi, Rido Situmorang
The blasting process is one of the most high-risk activities in mining operations. Shotfirers and blasting crews face hazards from slope failure, toxic gas and fumes, or unstable ground condition ever
Feb 6, 2023
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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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MS Initiation, a Possible Risk in Blasting Tall Structure
By Bob de Raadt
After a review of the general principles for blasting stacks, the stagnations of two stack demolitions are investigated. The author concludes and demonstrates that MS-delay blasting can be risky under
Jan 1, 1982
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Swedish Cautious Blast Excavation at the CSM/ONWI Test Site in Colorado
By Roger Holmberg, William Hustrulid
Swedish cautious blasting techniques were used to excavate a room at the CSM Experimental Mine in Idaho Springs, Colorado,as part of a ONWI/DOE sponsored nuclear waste disposal research program.
Jan 1, 1981