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Alternative Ways to Insure Risk
By Inc. The HDH Group
The Alternative Risk Market is defined as the segment of the insurance market that is made up of self insurance, risk purchasing groups, risk retention groups and captives. It is commonly referred to
Jan 1, 2007
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Blasting Near Buried Pipelines: A Gas Company Prospective
By Frederick R. Cosgrave
Blasting near buried Natural Gas pipelines has always been an area of great concern. Given the many variables that the blaster must contend with in determining how to break the rock while trying to ke
Jan 1, 1995
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Burden Velocity Measurement in Cast Blasting Operations at Mount Thorley Mine Using POWERWAVE Face Velocity Radar
By A T. Spathis, J J. Felice, W Klass
Cast blasting has become one of the most efficient ways to move waste rock in open cut coal mining. It is used at Mount Thorley Mine in conjunction with a dragline to move some of the overburden onto
Jan 1, 1992
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Presplitting Techniques with Large Diameter Blastholes in Western Coal
By John J. Barnes
The advent of more powerful explosives, increased bench heights, and larger diameter blastholes has necessitated the use of presplitting techniques in sub-bituminous coal mines. The combination of the
Jan 1, 1988
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Blast Vibration Effects Upon a Deep Injection Well and the Reduction of Ground Vibration Over Depth
By Jeffrey A. Straw, Joseph P. Jr Shinko
Ground vibration produced by blasting operations within South Florida, due to saturated soil conditions, generates surface vibration waves that may be measurable over distances of 3 - 5 miles from the
Jan 1, 1994
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The Effect of Shock and Gas Energies on Rock Fracturing Process
"In order to increase control over blasting, it is important to identify the imperative mechanismsand to quantify their participation during the rock fracturing process. The useful energyreleased by t
Jan 1, 1999
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Blast Vibration Analysis by a Time Series Technique
By Francis O. Otuonye
An application of a time series and systems analysis modeling technique to blast vibration data is discussed. The vibration data was taken from a rock support structure and the surrounding rock mass a
Jan 1, 1994
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Application of Crater Theory in Explosives Casting Design
By T Guiliani, F Ottuonye
Explosives casting is gaining increasing popularity as an overburden removal method in strip mining because the coats of using explosives to cast a percentage of the overburden to the spoil are lower
Jan 1, 1989
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The Use of High Density Ammonium Nitrate Mini-Prill Blasting Agents to Reduce Drilling and Blasting Costs
By John C. Adams, Robin Irwin
In early 1993 a test program was designed to determine if mining costs could be reduced by using a high density ammonium nitrate mini-prill blasting agent. The goal was to reduce mining costs by expan
Jan 1, 1994
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Predicting the Envelope of Damage Resulting from the Detonation of a Confined Charge (f7227bf9-6568-4211-b2c2-9f028c1f10ec)
By T Michael LeBlanc
Drill trajectory deviation is a recurring problem in vertical retreat stoping operations. As a result of this deviation, 60 kilogram (165 millimetre diameter) and 103 kilogram (302 millimetre diameter
Jan 1, 1996
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Explosives Sculpt at Crazy Horse
By Paul Muehl, Roger Lawrence
The massive sculpture taking place on Crazy Horse Mountain in the Black Hills of South Dakota, may Be the most unique application of precision blasting techniques in the world today, It is certainly t
Jan 1, 1991
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A Radio Frequency Hazard Assessment Probe Circuit
By Florian B. Janoski
The annual consumption of electric blasting caps in the United States approaches 100,000,000, so, over the last eleven to twelve years about one billion have been used. The author has made hazard asse
Jan 1, 1977
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Compaction of Salt by Means of Explosives
By Harnish Miller, Scott G. Giltner
One of the concerns with locating radioactive waste storage sites in salt deposits is how to permanently seal the underground storage areas once they have reached their storage capacity. The compactio
Jan 1, 1996
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Mixed Results in Choke Blasting
By J Paul Tidman, Stephen H. Chung
One of the requirements in open pit gold mines is to minimise the mixing of ore and waste. Dilution can be reduced by choke blasting and control of the initiating sequencing. The authors have used the
Jan 1, 1997
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The Design, Implementation and Optimization of Casting Blasts in Strip Mining
This paper describes experience in designing and implementing casting blasts over the past fifteen years. Important design parameters such as powder factor, burden and spacing, blast pattern geometry,
Jan 1, 1995
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High Precision Cap Accuracy - An Independent Study
By Calvin J. Konya
There have been many different brands of high precision caps introduced on the US market in the last five years. High precision timing definitely effects the performance of the blast. One should be ab
Jan 1, 1989
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The Concept of Explosives Malfunctioning in Rock Blasting
By Quian Liu
The problem of cross-hole explosive malfunctioning in rock blasting (including sympathetic detonation, desensitization and cut-offs) is a function of delay and spacing in a blast which should be desig
Jan 1, 1994
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Blast Vibration Measurements at Far Distances and Design Influences on Ground Vibrations
By Kenneth Eltschlager, Steven V. Crum, David E. Siskind
The Bureau of Mines was funded by the Office of Surface Mining (OSM) to determine how blast vibrations from a local surface coal mine were affecting homes in the towns of Daylight and McCutchanville,
Jan 1, 1992
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Iron Ore Company of Canada (IOCC) Blast Optimization with Emulsion Explosives
By M Lemieux, R Mason
The SABREX blast modeling program was introduced to I.O.C.C.'s Carol Lake Iron Ore Project in December 1987. As part of CIL's Technical Services, SABREX was used to implement an optimization program d
Jan 1, 1989
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Precision-Scale High-Explosive Water Shock Experiments
By Charles E. Joachim, Christo V. Lunderman, Charles R. Wdch
The U.S. Army Engineer Waterways Experiment Station (WES) recently conducted a series of precision-scale water shock experiments which consisted of the detonation of several 8-gram, 10-gram, and 12-gr
Jan 1, 1998