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  • ISEE
    OSM Cost Impact

    By Ronald L. Sanders

    The prevailing view of the coal mining industry by government officials is: "Tell everyone you're coming - Don't let anyone know you're there - And remove all evidence you have ever been there". Now t

    Jan 1, 1979

  • ISEE
    The Role of Blast Operations in Metal Mining

    By Jack Elorenta

    A recent forum of mine operators revealed a continuing strong interest in alternative methods of freeing rock. A Rand Corporation report lists a continuous mechanical machine that would replace drilli

    Jan 1, 2002

  • ISEE
    Airdek: an Update

    By Michael D. McGill, John L. Turner, Don Sieger, Doyle Newhouse

    Since its introduction by Atlas Powder Company in late 1986 as a means of highwall stabilization in surface coal mines (1), applications of the basic AirDek (2) blasting technique have multiplied rapi

    Jan 1, 1991

  • ISEE
    Effect of Geology on Burden Displacement

    By Rahim G. Haghighi, Calvin J. Konya

    Fragmentation is the fundamental concern of rock blasting and it measures the effectiveness of blasting. Fragmentation is sensitive to not only the interrelationship among the design variables, but al

    Jan 1, 1986

  • ISEE
    Development of Heat Resistant Emulsion Explosives

    By Fumihiko Sumiya, Koichi Kurokawa, Yukio Kato, Tetsuya Sawada

    In some metal mines, it is a serious problem the decomposition of explosives which occurs suddenly by contact with ore containing pyrites under high temperature conditions. In the present paper, we in

    Jan 1, 1992

  • ISEE
    Blast Design Software

    By Mark S. Stagg, Stephen A. Rholl

    As part of its research program to evaluate efficient design criteria for improved blast fragmentation, the Bureau of Mines has developed two computer programs to facilitate data analysis. Results of

    Jan 1, 1990

  • ISEE
    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

  • ISEE
    Fracturing Composition Using the Gas Pressure Generated by the Thermit Decomposition Reaction

    By Yoshihiro Moriyama, Toshihiro Okitsu, Ryouichi Banno

    The fracturing composition using the gas pressure generated by the thermit decomposition reaction gives the following performances.

    Jan 1, 1995

  • ISEE
    Status of International Standards on Blasting

    By Gerald R. Coonan

    I'm really here to talk about my pet subject of government relations. I've been in Peabody's Environmental Quality Department, working on regulations, for over five years, and I have seen a number of

    Jan 1, 1980

  • ISEE
    Defending a Blasting Case at Trial ROSAS v.AZTEC HOMES

    By Sean Cahill

    The Blasting In the summer of 1999, a Southern California drilling and blasting company conducted blasting as part of the grading operations at the Highlands Ranch development in San Diego, California

    Jan 1, 2003

  • ISEE
    Air Blast - The Major Cause of Complaings from Blasting?: Its Monitoring and Possible Control

    By G Alan Foster

    This paper discusses the cause of air blast and modern techniques to reduce this at the source. In addition it raises the problem of their marked variability due to prevailing weather conditions and h

    Jan 1, 1975

  • ISEE
    Changing Borehole Length to Improve Breakage: a Case History

    By Norman S. Smith, Richard L. Ash

    Many factors affect rock fragmentation from blasting. One variable seldom considered when designing blasts, however, is the borehole length. An example is described of how the length was adjusted to g

    Jan 1, 1976

  • ISEE
    Burden Velocity Analysis

    By Patricia Mendoza Watson, Lundquist Robert G

    The velocity with which the burden moves after blasting is of concern for safety and economic reasons. Models developed for motion velocity by various researchers were reviewed and likely model parame

    Jan 1, 1990

  • ISEE
    Rock Mass Identification Prior To Blasting: Reasons And Method

    By Anne Charline Sauvage

    Blast designers and blasters need to know the rock mass influence on blast to increase explosive effi-ciency and to optimize costs, but also to succeed in limiting blast emissions (vibration, overpres

    Jan 1, 2013

  • ISEE
    Journal: Security Matters / Guide to Recording A Suspicious Person

    By Unknown

    ATF has provided a Guide to Recording Suspicious Persons Description in the Safety & Security Brochure. This guide may be useful for recording descriptive information on any suspicious individual. Sus

    Jan 1, 2009

  • ISEE
    Study on System of Fracturing Rock Result from Dynamic Water Pressure by Explosion

    By Qingshou Chen, Gongbo Li, Hengqian Ran

    A method for safe fracture of rock, concrete and other brittle solid material using dynamic water pressure by explosion is provided. The propagation of the pressure is studied with Allievi water hamme

    Jan 1, 2000

  • ISEE
    The Influence of Variable Geology on the Blasting of Arkensas Bauxite

    By David A. Smith, B L. Jr Lindsey

    Arkansas bauxite varies enormously in its consistency and composition which makes blasting a very difficult operation. Blasting rounds have to be designed based on each particular mine's ore character

    Jan 1, 1979

  • ISEE
    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

  • ISEE
    Dynamic Photoelastic Experiment on the Fracture Caused by a Blasting

    By Yuji: Wada Ogata, Kunihisa Katsuyama

    It is well known that a compressed stress wave reflects at the free face, it propagates to the backward as a tensile stress wave, and cracks grow when the tensile stress becomes the dynamic tensile st

    Jan 1, 1993

  • ISEE
    Case Studies in the Application of Firing Time Optimization

    By Sharon K. Reamer, Yvan Sifre, Klaus-Gunter Hinzen

    "Three case studies are presented that illustrate the successful application of firing timeoptimization (hybrid modeling) in the quarry environment and for a construction site. In allcases, the method

    Jan 1, 1993