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  • ISEE
    Changing Powder Distribution in the Highwall Holes Reduces Overbreak and Rockfall Hazards

    By Virgil J. Stachura, Calvin L. Cumerlato

    The Bureau of Mines conducted a series of tests to develop a blasting method that would reduce overbreak and rockfall hazards at a limestone quarry in northeastern Wisconsin. Reductions in overbreak w

    Jan 1, 1989

  • ISEE
    The Engineering Significance of Shrinkage and Swelling Soils in Blast Damage Investigations

    By Wendell W. Harris, Stanley J. Vitton

    In the United States each year it has been estimated that expansive soils cause approximately $9.0 billion in damage to buildings, roads, airports, and other facilities. This figure alone exceeds the

    Jan 1, 1996

  • ISEE
    Explosives & Accessories Used in the Isthmus of Mexico to Break Up & Fissured the Lime/Stone/Sulphur Strata

    By Antonio S. Aldana Selders

    With special designed explosive and a system to lower down a heavy load of Explosives through 8" pipe results are achieved, the stimulation of sulphur production takes place. Well # 18-1063 at 515 met

    Jan 1, 1995

  • ISEE
    Delineating Extent of Cracks in Post-Blast Rock Surface Using GPR – A Case Study

    By Sayantan Chakraborty, Kaushik Dey, SaKaushik Dey tyabrata Behera

    Drilling and blasting is a popular excavation technique in the drift of underground mine. Faster completion of drift reduces the gestation period and thus longer blast pulls are attempted with longer

    Jan 1, 2019

  • ISEE
    Influence of Street Intersections on Blast Channeling and Diffraction Effects

    By Joshua Hofman, Braden Lusk, Erin Morris

    Explosions in urban environments, whether of accidental or malicious cause, often result in extensive injuries, loss of life, and property damage. The ability to predict the damage inflicted by these

    Jan 1, 2012

  • ISEE
    A New Blast Vibrations Analysis Methodology

    By Francisco Sena Leite, Raquel Sobral, Vinicius Gouveia de Miranda, Céu Jesus

    "The urgent need for improvements in the control and mitigation of environmental and social conditions associated with the extraction and processing of raw materials is increasingly a demand imposed b

    Jan 1, 2017

  • ISEE
    Underwater Explosions - Particle Size Effect Of Al Powder To The Energy Content Of An Emulsion Explosive

    By Martti Hagfors, Jussi Saavalainen

    The underwater explosions has been used as a test method for the determination energy content of explosives. The test method is suitable for all kind of explosives; homogeneous, heterogeneous, wa-ter-

    Jan 1, 2010

  • ISEE
    Comparison of Micro-Inch In-Plane and Out-of-Plane Resoponse of Cracks to Blast Vibration and Weather

    By Jeffrey Meissner, Mike Waldron, Charles Dowding

    Most studies of crack response have focused on opening and closing of a crack in the plane of the wall in which the crack occurs. Crack movement also occurs perpendicular or normal to the plane of the

    Jan 1, 2010

  • ISEE
    Integration of Big Data from Drilling and Blasting for Plant Throughput Optimization at Constancia Mine

    By Hernan Escalante, Jonathan Alvis, Paulo Alcazar

    Constancia Mine, operated by Hudbay Perú and located in the district of Velille, Chumbivilcas province, Cusco, is an open-pit operation characterized by low-grade ore. In this context, operational eff

    Jan 26, 2026

  • ISEE
    Improvement of the technology for performing blasting works in Studena quarry

    By Valeri Mitkov

    Studena Quarry is one of the main suppliers of inert materials for concretes production in Sofia. It is characterized by massif heterogeneity in density and fissuration. Failure to take into consider

    Jan 1, 2010

  • ISEE
    Blast Densification to Prevent Soil Liquefaction in Volcanic Avalance Debris for Construction of the South Coldwatercreek Bridge, Mt. St. Helens

    By Ron J. Elliott, David G. Otto

    This project involved deep blast densification of recent volcanic avalanche debris deposits consisting of a 43 meter thickness of loose clean to slightly silty sand, gravel, cobbles and boulders depos

    Jan 1, 1994

  • ISEE
    A New Method to Calculate the Frequency Associated with the Peak Particle Velocity of the Vector Sum

    By Ruilin Yang

    The vector sum peak particle velocity (PPV) of blast vibrations describes the blast vibration intensity more completely than the PPV of a single component waveform. It is more logical to use a vector

    Jan 1, 2015

  • ISEE
    Low Strength Water Gel Explosive

    By Michael M. Jackson

    "The mining industry has for some time compared explosive energy requirements to theresults obtained using ANFO. Drill patterns, powder factors, and explosive bulk strengthshave all been developed bas

    Jan 1, 1993

  • ISEE
    Underground Limestone Mining at the Portal-Access Okolona Quarry

    By William C. Pearson

    In past years, the usual justification for underground mining of limestone has been the depth of the overburden, perhaps 100 feet thick or more. At our Okolona Quarry in suburban Louisville, Kentucky,

    Jan 1, 1983

  • ISEE
    Development of Ammonium Nitrate-Free Mining Explosives

    By Italo Onederra, Miguel Araos

    "Most of the current explosives for mining blasting activities are based on ammonium nitrate (ANFO, emulsions and watergels). AN-based explosives’ detonating properties were discovered in the 50’s and

    Jan 1, 2017

  • ISEE
    Effect of Blasting Vibrations from Deck Blasts on Pit Wall Stability (Blasting and Fragmentation Vol. 11, No. 1, 2017)

    By B Mohanty, A Siamaki, K Esmaeili

    Large scale open pit mining and quarrying operations dictate safe and reliable pit wall stability. The current approach of employing the particle velocity-scaled charge distance approach to estimate a

    Jan 1, 2017

  • ISEE
    Process Intensification of Emulsion Manufacture

    By Shuli Teng, Vladimir Sujansky, Matthew Rawls, Ivan Junarsa

    In recent years significant advances have been made in chemical processing technology. In particular, process intensification using micro-technology has had some success in changing and improving chem

    Jan 1, 2014

  • ISEE
    Detonation of Non-Electric Initiation Systems Across an Air Gap

    By B. Winterberg, C. Lewis, M. Starkel, C. Johnson

    Non-electric systems, specifically shock tube, have become the pyrotechnic detonator of choice over electric due to their safety regarding accidental initiation from stray radio signals. Typically, th

    Jan 1, 2024

  • ISEE
    Subdrill – The Underutilised Blasting Parameter

    By Stephen Mansfield

    In metalliferous mining operations, subdrill is that portion of the blast hole that is drilled below the target grade elevation, and in most cases loaded with explosives. Its primary aim is to enable

    Feb 1, 2020

  • ISEE
    Use of Visualization Tools for Drill and Blast Activities

    By Carlos Alvarado, Hernan Narea, Jhon Silva, Bryan Townsend, Katherine Gil, Brayan Caceres, Felipe Pontanilla

    With the promising development of new technologies, automation in Drill and Blasting (D&B) is on the horizon. The data generated in all D&B activities, which is currently segregated, can be linked to

    Jan 21, 2025