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Blast Vibration Monitoring Instrumentation at Noranda Minerals
By David Sprott
The effect that underground blasting has on the stability of hangingwalls, pillars and other rock structures is an inherent part of Noranda's geomechanics and mine design program to improve mine safet
Jan 1, 1988
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Tug Fork Big Bend Cutoff Blast Monitoring Study
By Charles E. Joachim
Railroad and blast induced vibrations were measured in the vicinity of the proposed Big Bend Cutoff. Peak horizontal and vertical particle velocity relations were developed using least squares regress
Jan 1, 1984
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Diggability, a Measure of Dragline Effectiveness and Productivity
By Clive-Workman Davies, K K. Kabongo, Mensah Frimpong
Given the capital intensity of the dragline operation coupled with rising cost of explosives, the onus is on mine operators to make maximum use of explosives in blasting to assist dragline diggability
Jan 1, 1996
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Practical Aspects of Cast Blasting at Bulga Coal Australia
By Tapan Goswami, Geoff Keith
"At Bulga Coal, the objectives of drilling and blasting are to maximise safety and to minimise the totalcost of mining. A recent audit of two overburden blasts established that the standard of drillin
Jan 1, 1999
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Performance Evaluation and Effects of Standoff on 10,500 grain per foot Linear Shaped Charge
By Kevin Phelps, Jason Baird, Philip Mulligan, Dominique Nolan
The basic metric for linear shaped charge performance is the amount of cutting distance that the charge can effectively yield given a specific standoff and target. Due to its size and restricted produ
Jan 1, 2013
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Specialized Blend and Delivery Equipment Optimize Emulsion/ANFO Applications
By Thomas F. Mechtenberg, Michael S. Powell
In the past several years many coal operators and stone producers have reduced drilling and blasting cost by utilizing Bulk Emulsion/ANFO blends. For many operators the cost of equipment to handle ble
Jan 1, 1990
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Development of a new contour blasting system using bulk emulsions
By Peter Moser, Mark Ganster, Radoslava Ivanova, Florian Bauer
Blasting accurately in underground drifts and creating a smooth contour requires proper drilling, knowledge about the apparent geology, a well designed blast pattern and ideally a smooth blasting prod
Jan 1, 2012
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Dilution and Ore-Loss Optimization in Underground Mines
By Sami Kara, Marsel Nabium
As a mining project is developed from conceptual to production phases, there exists a variety of uncertainties and difficulties that affect the operation’s designs and economic values. A notable desig
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Influence of the Geomechanical Characteristics of the Rocks and of the Type of Explosive on the Absorption of the Energy Induced in the Rock by the Explosives
By F M. Dantini, P Berry
An experimental investigation on the trend of cratering induced by explosives placed on rock masses was carried out. By using various types of explosives and rocks having different geomechanical param
Jan 1, 1981
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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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Laboratory Study on Prevention Method of Detonation Failure Caused by Channel Effect
By Fumihiko Sumiya, Kunihisa Katsuyama, Yuji Ogata, Yukio Kato, Yuji Wada, Yoshikazu Hirosaki
Smooth blasting technique is widely applied for tunneling road or railway construction in Japan. However, smooth blasting technique often causes problem related to detonation failure in explosive colu
Jan 1, 2003
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Seed Wave Modeling to Natural Caves Protection in Mining Operations
By Alejandro Rosario, Ricardo González
The restrictions imposed by the Brazilian environmental legislation regarding natural caves lead to a block of substantial amount of mineral reserves. Mining activities can released caves, as long as
Jan 1, 2019
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Drilling and Cost Analysis Usign a Personal Computer and Spreadsheet
By William D. Hissem
The purpose of this paper is to advise people about the methods, use, and possible applications of current "personal computer" hardware and software with regard to the economic cost analysis of percus
Jan 1, 1986
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Energy, Strength and Performance, and Their Implications in Rating Commercial Explosives
By B Mohanty
Several parameters such as, Energy, Strength, Brisance, Impulse, and Bubble Energy, are in common use in the explosives industry today to rate commercial explosives in terms of blasting performance. H
Jan 1, 1981
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Utilising a Dual Belly Auger MPU to Manufacture Bulked Inhibited Explosives
By Jason Rock, Rob Thompson, Lee Julian
This paper presents an innovative shift in inhibited bulk products with specific reference to their manufacture and application.
Feb 1, 2020
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Enhancing Blast Performance Evaluation through 3D Muck-pile Fragmentation Analysis: Overcoming Surface-Based Limitations
By O. Cermak, F. Degonld
Although 3D fragmentation analysis is a relatively new technology, it is rapidly gaining popularity among mid-sized mining operations and quarries. The results provided by this technology are adequate
Jan 1, 2024
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Observations from the Laboratory Testing of Resistorized Electric Detonators
By David Leidel, James Stuart
The 50 ohm resistorized electric detonator is commonly used in the oilfield for initiation of wireline conveyed perforating guns and other downhole explosive tools. This type of electric detonator pro
Jan 1, 2010
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Computer Aided Design of Ring Blasts
By Calvin Konya, Theodore R. Myers, Robert Lundquist
The design of a single, large mass blast using ring drilling may take two to three months. This time requirement inhibits the evaluation of multiple designs. It also reduces the flexibility to redesig
Jan 1, 1990
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Understanding Single Salt, Dual Salt, and Multiple Salt Bulk Emulsions and Emulsion Blends
By Dr. Bronwynne Victor, Quentin Steyl, D. Scott Scovira
Bulk emulsions and emulsion blends may be formulated with a single salt, dual salts, or multiple salts. Blasting professionals familiar with single salt ammonium nitrate emulsion products may be less
Feb 1, 2020
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Instrumentation and Monitoring Criteria to Determine Structural Response from Blasting
By H Y. Fang, H Sutherland, R M. Koerner
Due to the increased number of complaints by property owners to blasting related industries an apparent need for a clearer understanding of blasting-related damage is needed. We feel that direct struc
Jan 1, 1976