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Industrial Minerals 2001
Editor’s note: As usual, the June issue features an industrial minerals review. And some thanks are in order. Thank you to the industrial minerals annual-review editor, to the technical committee
Jan 1, 2002
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Experts Discuss Reserves Reporting at SME Meeting
By Steve Kral
Mining is a risky business. The cost of exploring for new mineral deposits is high and the success rate of finding one worthy of development is relatively low. And once a deposit is identified, ther
Jan 1, 2003
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The Site Planning Process: Application To Land Use Potential Evaluation For Mined-Land
By R. J. Sweigard
Productive and beneficial use of reclaimed surface-mined land is a concern of industry, government, and the general public. An investigation was conducted of current mined-land planning practices to a
Jan 1, 1984
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Estimating Strain and Stress in Oriented Rock Cores Using a Diametral Deviation Method
A practical core-based method for estimating in situ stress was tested using 360° measurements of rock core diameter in a laboratory setting. In several mining districts across West Virginia, rock cor
Jan 7, 2020
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An Evaluation Of The Strength Of Slender Pillars
Pillars with width to height ratios of less than 1.0 are frequently created in underground hard rock mines. The strength of slender pillars can be estimated using empirically developed equations. Ho
Jan 1, 2006
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Phosphogypsum Uses
By P. R. Clifford
Phosphogypsum is a byproduct of the manufacture phosphoric acid. There are approximately one billion tons of phosphogypsum stored in stacks in northern and central Florida. The Florida Institute of
Jan 1, 2002
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Importance Of Geotechnical Field Mapping In Assessing The Stability Of Underground Excavations
By A. Adu-Acheampong
Stope instability at Ashanti Goldfields Company Ltd. (AGC) is a major concern. Using information from field mapping, major discontinuity sets were defined, Rock Quality Designation (RQD) was determine
Jan 1, 2003
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Estimation Of Incremental Haulage Costs By Mining Historical Data And Their Influence In The Final Pit Limit Definition
By R. Benito
This paper describes the application of modern data-analysis tools, such as data mining, to determine a representative cost driver for haulage activity. This cost driver was subsequently used to trace
Jan 1, 2008
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Ventilation planning at Energy West?s Deer Creek Mine
By L. Tonc
In 2004, the engineers at the Deer Creek Mine located near Huntington, Utah initiated the ventilation planning to exploit a remote area of the mine?s reserves. This area was located under a mountain w
Jan 1, 2009
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The Influence of Polysaccharides on Film Stability and Bubble Attachment at the Talc Surface Mining, Metallurgy and Exploration
By Lei Pan, Venkata Atluri, Xuming Wang, Yuesheng Gao, Jan D. Miller
The wetting characteristics and water film stability at the talc surface have been studied, particularly the effect of polysaccharides such as guar gum, starch, and dextrin. Talc is a gangue mineral i
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Rock Engineering Aspects of Designing Large Span Caverns at Depth in the Deep Underground Science and Engineering Laboratory
By C. Laughton
Construction of a Deep Underground Science and Engineering Laboratory(DUSEL) is proposed under the auspices of the US National Science Foundation(NSF). DUSEL will provide scientists and engineers with
Jan 1, 2007
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New York-New Jersey?s Mass Transit Tunnel Moves Ahead
By Arthur D. Silber
The economic success and growth of any metropolitan region depends on mobility. Today, mobility between New Jersey and New York is threatened by a transportation system that cannot meet 21st century t
Jan 1, 2009
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Limestone Mining – Is It Noisy Or Not? (a6f0b5ad-a610-4972-afd6-68c53ccd734c)
By D. R. Babich, E. R. Bauer
National Institute for Occupational Safety and Health (NIOSH) researchers are conducting a cross-sectional survey of equipment noise and worker noise exposures in the mining industry. Surface and und
Jan 1, 2006
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A Unified Rock Classification For Drilling And Boring
By G. V. Krishnan, L. Adler
A rock classification for drilling and boring is presented covering most equipment types and providing an estimation of the key parameters for operation, such as thrust and speed, and of performance s
Jan 1, 1983
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Some MINExpo Exhibitors Previewed
Bortech’s BoreClad corrosion protection system will be displayed at MINExpo. BoreClad is an innovative system for inside diameter cladding of nozzles, tubes and other circumferential devices. Pressu
Jan 1, 2004
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Environmental Evaluation Of The Belle Eldridge Mine Near Deadwood, South Dakota
By A. D. Davis, C. J. Webb, C. S. Johnson
The Belle Eldridge Mine is an inactive lead-zinc mine in Spruce Gulch south of Deadwood, South Dakota. Acidic mine drainage (AMD) produced at the site drains into Spruce Creek, a tributary of Whitewo
Jan 1, 2000
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Good Times at Arizona Conference Are Tempered With Concerns For the Future
By William M. Gleason
When SME’s 2006 Arizona Conference convened in December at the Hilton El Conquistador Resort in Tucson, AZ, there was considerable excitement among the 387 attendees. There was a noticeable buzz s
Jan 1, 2007
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Case History of Trenchless Construction at the Lower Northwest Interceptor Program, Sacramento, California
By Steven Norris, William Moler, Michael Cole, Patrick Doig, Debi Lewis, Craig Pyle, Matthew Crow
The recently completed Lower Northwest Interceptor Program (LNWI) in Sacramento, California comprises, ten pairs of micro tunnels totaling 4,369 m (14,417 ft),three horizontal directionally drilled bo
Jan 1, 2007
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Production Of Huntite And Hydromagnesite With Flame Retardant Featured By Flotation
By O. Kangal
Flame retardant materials can be incorporated or applied to products, including plastics and textiles, to increase their resistance to fire. Incorporating a flame retardant in combustible materials an
Jan 1, 2009
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Mining 1992
In 1992, the United States economy grew at a rate of 2%. The Gross Domestic Product rose to $5,946 billion. With 257 million people - 635,000 in mining including petroleum - the United States has more
Jan 1, 1993