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  • ISEE
    Model Rock Blasting Measures Effect of Delays and Hole Patterns on Rock Fragmentation

    By J W. Edl, F C. Wu

    In instrumented model rock blasting experiments in granite blocks, best fragmentation results were obtained when delays between holes were 1 to 2 milliseconds per ft. of burden and when a rectangular

    Jan 1, 1975

  • ISEE
    Trench Blasting - Modern Technology for an Old Headache

    By L D. Lawrence, W B. Sudweeks, J Bailey

    Modern era urbanization is presenting at least one category of explosive consumers with a growing concern for ecological and environmental problems associated with their blasting processes. The constr

    Jan 1, 1988

  • ISEE
    Damage Levels for Reinforced Concrete Columns Subject to Internal Explosive Charges

    By I. Petropouleas, J. Croll, R. Bassett

    A programme of tests on controlled internal explosions to a class of circular reinforced concrete columns, has allowed the relationships between the blast energy and the extent of local damage to be u

    Jan 1, 2006

  • ISEE
    Blasting at the Silver Cliff Tunnel Approaches Near Two Harbors, MN

    By John Turner, James Lamb

    The Minnesota Department of Transportation (MNDOT) has an extensive project to improve driving conditions and reduce hazards to motorists on US Highway 61 between Duluth, MN, and Canada along the nort

    Jan 1, 1994

  • ISEE
    Cosmar and Blasting

    By Lee W. Saperstien

    Section 709 of Public Law 95-87, "Surface Mining Control and Reclamation Act of 1977," requests the National Academy of Sciences to determine if the standards of the act are applicable to minerals oth

    Jan 1, 1979

  • ISEE
    How the Blasthole Burden, Spacing, and Length Affect Rock Breakage

    By Norman S. Smith, Richard L. Ash

    Relationships between the three design factors of borehole burden, spacing, and length that control rock breakage were examined by means of reduced-scale bench blasts in dolomite. A set of three indic

    Jan 1, 1977

  • ISEE
    Numerical Modeling of Oil Shale Fragmentation Experiments

    By J S. Kuszmaul

    The economic development of modified in situ oil shale retorting will benefit from the ability to design a blasting scheme that creates a rubble bed of uniform permeability. Preparing such a design de

    Jan 1, 1985

  • ISEE
    A Repumpable Emulsion for Use in Mines Subject to Afterblast Sulfide Dust Explosions

    By Tom Medak, Don H. Cranney, G Paul McKay, R Douglas Reid

    Explosive initiated afterblast dust explosions can occur in high sulfide ore mines when the flame generated by the detonating explosives ignites the sulfide dust produced from the blast, from previous

    Jan 1, 1994

  • ISEE
    Controlling Blast Vibration Effects with On-Site Analysis of Single Hole Signatures: "A New Approach"

    By Randall M. Wheeler

    Computer analyses of single hole signatures are often used to help blasting operators predict the type of ground vibration effects that may be produced from production blasts incorporating various del

    Jan 1, 1989

  • ISEE
    The Effect of Rock Strength on Perimiter Blasting and the "Blastibility" of Massive Rock

    By Qingshou Chen, Paul N. Worsey

    It has been recently argued that rock strength has little effect on the final results of pre-split blasting and is of only minor importance when blasting rock in general. However, it can be shown that

    Jan 1, 1986

  • ISEE
    Blasting-Induced Damage in Coal

    By Kaby K. Kabongo

    The paper is drawn from a project intended to explore a technique of prediction, control and optimization of fracture in coal induced by blasting. It evaluates the fines generated in coal submitted to

    Jan 1, 1995

  • ISEE
    Blasting Cost Minimization at Duvha Opencast

    By S A. Steyn, I P. Douglas

    Duvha Opencast is a large South African dragline operation supplying coal to the Duvha Power Station which is operated by Eskom, the state power utility. For Duvha to remain competitive with other col

    Jan 1, 1991

  • ISEE
    Blasting Damage Criteria for Low-Rise Structures

    By Kenneth Medearis

    There is considerable evidence that more rational damage criteria need to be generated with regard to low-rise structures subjected to blasting vibrations. There is not sufficient basis for specifying

    Jan 1, 1978

  • ISEE
    Pattern Expansion Utilising Titan Red at Yarrie Iron Ore Mine in Western Australia

    By Trevor Garbutt, Peter Bellairs, Jason Sander, Glenn Shaw

    The Yarrie Iron Ore mine is located in the Pilbara region of Western Australia some 200km eastsoutheast of Port Hedland, the closest large regional centre. The mine is owned by BHPIO who has contracte

    Jan 1, 1999

  • ISEE
    Borehole Study of Precompression Resistance in Detonators and Explosives

    By Joseph A. Sohara, John J. Mullay, Curtis J. Keefer, Robert L. Schrepple

    The desensitization of an explosive column by the action of a previous detonation (adjacent borehole, deck or detonating cord) is a vital concern to the explosives industry. Previous reports to this s

    Jan 1, 1990

  • ISEE
    The Comminution Theory Applied to Rock Blasting

    By Carlos Agreda

    A general review of the comminution theory and also the general differential equation of the comminution are described, analyzed and discussed in order to be applied to rock blasting. Some size distri

    Jan 1, 1994

  • ISEE
    Safety of Ammonium Nitrate

    By Erik Nygaard

    Ammonium nitrate (AN) is the main ingredient in most industrial explosives, but it is estimated that as much as 80-90% of the global annual production is used as fertilizer [14, 25]. Over the last yea

    Jan 1, 2006

  • ISEE
    Transient Data Analysis Procedure for Reducing Blast-Induced Ground and House Vibrations

    By O E. Crenwelge

    Seismograph measurements are usually made near blasting operations solely for the purpose of monitoring compliance with governmental regulations. However, recordings of seismograph signals have far gr

    Jan 1, 1991

  • ISEE
    Journal: Blast Vibration and Seismograph Section / Post Blast Assessment Using Blasting Seismograph Data

    By Kenneth Eltschlager

    Post-blast assessment techniques using off-site data which includes location, seismograph and photographic data were discussed during the Blaster’s Weekend at this year’s ISEE Conference. Blast and pr

    Jan 1, 2007

  • ISEE
    Utilizing European Magnetic Coupling of High Accuracy Detonator Technology in U.S. Mines

    By Raymond M. Dixon, Dale L. Ramsey

    Upon being introduced to the MAGNETIC COUPLING concept,Balsinger,Inc. wanted to conduct field trials to explore the potential of Magnetic Coupling in the U.S.. Although the Magnetic Coupling Concept h

    Jan 1, 1990