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Journal: Lightning - Understanding the Danger, Managing the Risk.
By Greg Quinn
After a long week of work in Colorado Springs this past July, I was looking forward to flying home to start a long anticipated family vacation. As I grabbed my seat on the plane, a man sitting next to
Jan 1, 2012
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Shotrock Fragmentation Improve in Complex Lithology Condition
By M. Syafiq Isnaya, Rahma Norfaeda, Slamet Rachman Jaka
This paper is about project improvement to maximize energy distribution while ensuring beneficial blast results (reduce boulder condition). The main problem is how to manage complex lithology conditio
Feb 1, 2020
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Kelly Bar Loading
By C F. Argo
In the past several years the "Kelly Bar", an innovative device, which incorporates borehole d-rifling and explosives loading into a single detail, has come under scrutiny and criticism. The practical
Jan 1, 1975
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Blast Fume Management
By Alan B. Richards, Aleks Todoroski
The undesirable effects of blasting fumes can be controlled by minimising the amount of fume created, and by avoiding the movement of the fume plume to sensitive locations. Substantial progress has be
Jan 1, 2017
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World's Longest Highway-Tunnel Tests 'Site Sensitized Emulsion'
By Bjoern R. Petterson, Lars Haakon Siem
The world's longest highway-tunnel -- the Aurland Tunnel in western Norway -- is scheduled to be opened in the year 2000. A project to build a main highway between Oslo and Bergen with no ferry connec
Jan 1, 1996
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Utilizing Structured Public Involvement in Community Meetings around Blasting Operations
By Joshua Micah Hoffman
While it is easy to state that meaningful involvement of the community can play a critical role for a successful blasting operation, following through with this involvement is not an easy task. Struct
Jan 1, 2014
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PIBSA-based Emulsifier for Low Quality Ammonium Nitrate Emulsion Explosives
By Julia Creasey, Natalie Hodgson, Claire Ward, Craig Davies, Helen Sarginson
"Emulsion explosive producers are attempting to lower the cost of emulsion production by using lowquality ammonium nitrate in emulsion formulations. Low quality ammonium nitrate contains additivessuch
Jan 1, 2017
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A Consumer's Guide to Bulk Emulsions and Emulsion/ANFO Blends
By Catharine L. VanOmmeren
Emulsion quality characteristics such as shelf life, handling, and sensitivity are critical to the end-user. It is therefore important that the consumer be prepared to ask his supplier specific questi
Jan 1, 1989
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Predicting Vibration Through Linear-Regression Modelling
By Anthony Konya, Calvin J. Konya
The publication, RI8507, from the U.S. Bureau of Mines established an envelope equation that related scaled-distance to peak particle velocity in an attempt to predict ground vibration in the design p
Jan 1, 2018
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The Improvement in Fragmentation of the Hardest Jaspilite Lithology
By Carlos Campos Junior, Leonardo Soares Chaves, Raul Carretero Hoz, Renato Jacome Costa, Davi Bastos Martins de Oliveira
The Vale’s Serra Sul mine, also known as S11D project, is one of the world’s largest open pit iron ore mines, located in Brazil’s Amazon region. The mine produces around 90 Mt of high-quality iron ore
Jan 21, 2025
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Relationships between Pipe stress, Ground Particle Velocity and Scale Factors in Blasting Dolomite
By Dennis Alan Clark
An increase in construction and quarry operations has necessitated blasting activities in areas once considered rural and in the close proximity of transmission pipelines. A method to determine the ma
Jan 1, 1976
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Attenuation of Blasting Vibrations in South Florida, Part II
By Greg Mclellan, Mark Johnson, John Pepper
In this paper, the measured vibrations are plotted in terms of the individual PPV components versus Scaled Distance (SD) on logarithmic scales. The maximum PPV is pIotted on a separate graph and equat
Jan 1, 2001
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Observation of Flyrock at Several Mines and Quarries
By John W. Kopp
The U. S. Bureau of Mines investigated flyrock and burden movement from blasting at several limestone and basalt quarries in the upper midwest. Blasts have been studied at 14 different sites using hig
Jan 1, 1994
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Blasting Related Aggregate Size Optimization
By John Cory, Ran Tamir
Blasting data analytics are being increasing used to increase mining productivity, reduce mining costs, maximize high margin aggregate products, and to reduce fines. Three examples will be illustrated
Jan 1, 2012
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ICI's Computer Blasting Model SABREX - Field Calibration and Applications
By G G. Paine, C V. B Cunningham, G Harries
The companies of the ICI Explosives Group have successfully used a wide variety of internal computer codes including BOBCAT, KUZ-RAM, ICRAX, XPLODE, BLEND, 3CRACK, MICBLAST, DETON, etc. In recent year
Jan 1, 1987
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Impact of the Mine to Plant Methodology on the Global Profitability of the Mining Industry
By Ronald Ticona
Generally, the drilling and blasting operation are managed independently to the processing plant outcomes. Therefore, the technical segmentation to determinate the ore drill and blast designs do not i
Feb 6, 2023
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Controlled Excavation at the Trans-Koolau Halawa Tunnels
By Ken Fiorentino, Gordon F. Revey
H3 Tunnelers recently excavated two conventional 48 foot diameter highway tunnels through the Halawa side of the Tran-Koolau Mountains on Oahu. The primary blast design challenge on this Job was minim
Jan 1, 1993
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Improved Techniques for Reactive Ground, Density and Performance Testing of Bulk Explosives
By Italo Onederra, Gary Cavanough, Ewan Sellers
Reactivity of ammonium nitrate based explosives is associated with the presence of iron sulfides in the ground reacting with explosive products and in some instances causing spontaneous reactions whic
Jan 1, 2018
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Guidelines for Handling and Documenting Blasting Complaints
By Robert L. Brooks
Blasting liability problems are frequently compounded by a company's inability to effectively communicate with concerned property owners and the lack of adequate complaint documentation. Often, by the
Jan 1, 1992
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Commercial Detonators: a Review of Methods Used. Past and Present. To Compare Their Strengths
By Robert B. Hopler
This paper reviews, from the historical standpoint, the development of the commonly-used terms such as "No. 6 and No. 8" with regard to detonator strengths. The origin of the strength terminology is r
Jan 1, 1992