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Proactive Interburden Fracturing Using Underground Inseam Drilling with Validation Monitoring
A series of gas inrush events occurred during development at Grosvenor mine resulting in exposure to elevated levels of methane at the production face. A total of 22 gas inrush events occurred releasi
Jan 7, 2020
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Arizona?s Mining History Featured At Precious Metals Symposium
All aspects of precious metals processing were featured at a symposium held Oct. 3-6, 2007, at Loews Ventana Canyon Resort in Tucson, AZ. Although billed as "Precious Metals Processing: Advances in
Jan 1, 2008
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New York Subway Stations And Crossover Caverns—Update On Initial Support Design
By Charles Stone, Hannes Lagger, Dru Desai
The design methodology of the planned Second Avenue Subway Project (SAS) led to development of the initial support design to estimate cost and quantities in the Preliminary Engineering (PE) stage. Car
Jan 1, 2007
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IntelliMine - Innovative technologies and concepts for the sustainable and intelligent Deep Mine of the future
By H. Hejny
"The mine of the future will exploit mineral raw materials at greater depths than today, requiring completely different approaches compared to today’s deep mines, in order to get mineral rights. Only
Jan 1, 2011
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Hydraulic Considerations For Leaching Operations
By J. F. Lupo
Leaching operations combine both metallurgical and hydraulic processes to extract metals from the ore heap. In the design of leaching operations, metallurgical tests and simple hydraulic tests are oft
Jan 1, 2000
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The Potential Of GPS Guidance In The Mining Industry
Recent advances in GPS, machine guidance technology and telemetry allow an unprecedented level of control of surface mining operations. GPS technology can now locate the bucket of a shovel or the blad
Jan 1, 2004
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Mining, EPA, and toxic waste : Will your mining company be liable?
By Peter Haller
Introduction The impact of the Comprehensive Environmental Response, Compensation, and Liability Act, or Superfund, as well as the Resource Conservation and Recovery Act (RCRA) and their state counte
Jan 2, 1987
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Processing of Banded Hematite Quartzite Ore for Recovery of Iron Values Mining, Metallurgy and Exploration (86b8819b-6b05-4951-9ba6-26bcd1fd2904)
By Nikhil Dhawan, Veeranjaneyulu Rayapudi
This study investigates upgrading of low-grade banded hematite quartzite iron ore (Fe ~31%). Conventional beneficiation was found to be futile. The susceptibility of iron phases to microwave exposure
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Cattle Aid Reclamation at Robinson Mine in Nevada
Inn mining communities throughout the western United States, cows have always been part of the landscape as they graze on surrounding rangelands. Until recently, mining companies regarded these anima
Jan 1, 1999
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Geotechnical Baseline Reports for Construction - Second Edition
By Randall J. Essex
The Construction Institute of the American Society of Civil Engineers recently published the second edition of a 1997 publication on geotechnical baseline reports. The new publication, called Geotechn
Jan 1, 2008
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Develop Specifications Before Selecting Heavy-Duty Apron Feeders
By Shular R. Scudamore
There was a time when heavy-duty apron feeders were built to last almost forever. The machines were heavy and built to maintain certain expected longevity and reliability. Increasing emphasis on retu
Jan 12, 1983
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Development described for fluidized bed combustion at TVA’s 20-MW pilot plant
By James W. Bass
Introduction Atmospheric fluidized bed combustion (AFBC) is an improvement over coal-fired boiler design. It offers several advantages over conventional boilers. AFBC can meet sulfur and nitrogen oxi
Jan 4, 1986
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The Expectations For Coal: Is Our Government And The Coal Industry Prepared?
By M. S. Miller
With prevailing assumptions that plentiful domestic coal reserves will be available for meeting our Nation’s expectations for on future low emission, coal-fired power plants, major government funding
Jan 1, 2004
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The Utilization Of Coarse Pre-Concentration Rejects In The Preparation Of Underground Backfills At Xstrata Nickel?s Ontario Operations
By T. Weatherwax
As part of a strategic research initiative at UBC to design and evaluate integrated underground mining and mineral processing systems, work has been done to determine how to utilize the coarse rejects
Jan 1, 2008
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Ressure And Flow Investigation Of An Axial Booster Fan With Variable Blade Settings ? Experimental And Cfd Approach
By A. Habibi
A study has been undertaken on two 1.12 m diameter industrial booster fans operating under different blade settings powered by a 1200 rpm motor at the Missouri University of Science and Technology. Th
Feb 27, 2013
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Truth, Judgement, Responsibility, Integrity, Conflict And Resolution In Exploration And Heavy Construction
By Peter J. Tarkoy
A great deal of attention has been directed toward the complexities and inadequacies of exploration and pre-bid geotechnical information for heavy construction projects, differing site conditions, and
Jan 1, 1983
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Mine Development With Heavy Roadheaders
By Robert A. Pond
Heavy (exceeding 35 tons) roadheaders have not seen much use in the United States, but are used extensively in Europe to excavate many types of underground openings in civil and mining applications. E
Jan 1, 1983
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Underground Subway Construction Costs
By Harry Sutcliffe
THE PROBLEM Two and a half years have gone by since the December, 1976 Civil Engineering article on subway costs caused such a furore. What has happened in this interval? Even after discounting
Jan 1, 1979
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Boring At High Thrust And Its Potential In The Hard-Rock Mining Industry In South Africa
By J. W. Wilson, P. C. Graham
SUMMARY The Witwatersrand quartzites in which South African gold mining operations are moat exclusively conducted, are notoriously difficult and costly to drill. Despite this situation, however, wi
Jan 1, 1974
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The Price Is Right?Planning Large Water Tunnel Contracts In New York
By Christian Maguire
Tunnel contracts in New York have in recent years had few bidders with the bids received being much higher than anticipated. Since 9/11, security has become a key issue in planning key infrastructure