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Specimen Mining at the Sweet Home Mine in Colorado’s Alma District
By Paul Bartos
Operations at the Sweet Home Mine transformed the mineral specimen industry, not only in the development of new innovative extraction techniques, but also in the fields of sample preparation and marke
Jan 1, 2007
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Numerical Evaluation Of Effectiveness Of Drainwells In Dewatering Overburden At Surface Coal Mines
By R. L. Howell, L. C. Atkinson
Typical sedimentary sequences overlying coal seams consist of interbedded sandstones, siltstones, shales, and rider coal seams. In many surface coalmine settings, these sediments are saturated; and p
Jan 1, 2000
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Life Cycle Assessment of Environmental Protection Measures: The Mining Industry as an Example
By G. Deissman, S. Kistinger
For the last 15 years environmental Life-Cycle Assessments (LCA) have increasingly been used to evaluate the environmental performance of industrial processes and products and have been employed as a
Jan 1, 2005
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An Investigation Of Grout Penetration Depth In Fractured Rocks
Grouting is mainly used to improve mechanical properties or decrease the permeability of rock mass around civil and mining projects. The purpose of this paper is to present the most effective factors
Feb 27, 2013
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Heavy mineral mining in the Atlantic Coastal Plain of Florida and Georgia and the chemical and physical characteristics of the deposits
By F. L. Pirkle, D. L. Pirkle, E. C. Pirkle, W. A. Pirkle
Heavy minerals have been mined from the sands of the United States’ Atlantic Coastal Plain since the early part of the twentieth century. Production of ilmenite from beach sands near Mineral City (Po
Jan 1, 2005
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Effectiveness of a water curtain utilized for dust control on continuous miner sections
The Mine Safety and Health Administration (MSHA) conducted a respirable dust survey to evaluate the effectiveness of a water curtain utilized for dust control on continuous miner sections. The purpose
Jan 1, 2009
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Precious Metal Recovery Using Sluice Boxes in Alaska and Canada
By James A. Madonna
Information gathered while studying geological parameters that govern fine gold deposition in the a1luvial environment can be applied to the technological development and selection of fine gold recove
Jan 1, 1988
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Methods For Determining Roof Fall Risk In Underground Mines (e9e99c27-c4ac-4dc4-b19d-607c245139c5)
By T. Bajpayee, L. Prosser, A. Iannacchione
Reducing the number of roof fall injuries is a goal of the NIOSH mine safety research program. Central to this effort is the development of assessment techniques that will help to identify the nature
Jan 1, 2007
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Incorporation Of Silicate Buffering In Predicting Acid Rock Drainage From Mine Wastes: A Mechanistic Approach
By A. D. Nicholson
This paper presents an approach to quantitatively calculate the neutralization of acid by silicate minerals, based on the chemical kinetics of acid reacting with silicates. This approach incorporates
Jan 1, 2002
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Field Application of NTH Fracture Classification at the Second Manapouri Tailrace Tunnel, New Zealand
By Don F. Macfarlane
This paper describes the field application of the NTH fracture classification to rock encountered in the construction of the 9.6 km long, 10m diameter, Second Manapouri Tailrace Tunnel. Excavation of
Jan 1, 2008
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Initial Support Design for Tunnels in Horizontally Bedded Sedimentary Rock
By Irwan S. Halim
For tunnels in horizontally bedded rock, geologic factors affect the selection and design of the initial supports, including the rock propensity toward parting along bedding and the resulting high pot
Jan 1, 2008
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Strong reserve bases are key to oil companies surviving over the long-term
By Wilfred P. Schmoe
Introduction An integrated oil company has two options in approaching strategic planning. It has to decide whether it is in business for the long-term. I state this in all seriousness. Those who help
Jan 6, 1985
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Bulk Handling Technology; Designing for the Future by Innovating the Present (8e766dcb-a812-4d92-a1a4-f27669d112e3)
By R. Todd Swinderman
"Higher production demands across all bulk handling segments require increased efficiency at the lowest cost of operation, in the safest and most effective manner possible. As conveyor systems become
Jan 11, 2018
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Progress Report On The Old Bevier Passive Treatment Wetland, Macon County, Missouri
By Kwang ‘Min’ Kim, Paul T. Behum
The Old Bevier Aerobic Wetland in Macon County, Missouri, was constructed between 1990 and 1991 by the Missouri Department of Natural Resources’ Land Reclamation Program for the purpose of treating ac
Jan 1, 2005
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An Analysis Of Recent MSHA Accident Datafor Underground Metal Mines Using Backfill
By J. B. Seymour
This paper provides an overview of the current use of backfill for ground support in underground metal mines in the United States and a summary of recent accident data reported for these mines by the
Feb 27, 2013
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Sights and Sounds of the Second Mexican Mining Rail Excursion
By Beth Robinson
This first of two articles on the Second Mexican Mining Rail Excursion describes some of the more casual experiences participants enjoyed on last fall’s rail tour of major Mexican mining operations. I
Jan 1, 1982
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Maintenance Management: Minimizing Risk to Profitability
By Paul D. Tomlingson
Modern production equipment has been designed with greater productive capacity and higher reliability to meet the rigorous operating demands of the mining industry. These improvements have also made
Jan 1, 2005
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Water Tunnel Beneath New York Harbor
By Mohammad R. Jafari
The Camp Dresser & McKee (CDM)/Hatch Mott MacDonald (HMM) joint venture has been engaged by the New York City Economic Development Corporation (NYCEDC) to provide engineering ser-vices in connection w
Jan 1, 2008
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Cuprex – new chloride-based hydrometallurgy to recover copper from sulfide ores
By Enrique Hermana, Raymond F. Dalton, Raymond Price, Barry Hoffman
Introduction Chloride leaching of sulfidic ores has been known about for 100 years. It is recognized as a highly efficient process to produce concentrated leach solutions. Despite this, chloride leac
Jan 1, 1988
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The Ivar Project - An Uncommon, Everyday TBM Tunnel
By Yngve Jordal, Sverker Hartwig
The IVAR Project is Norway's largest sewer project presently under construction. One part of it is an 8.1 km (26 575 ft) long, 3.5 m (11 ft 6 in.) diam tunnel, bored in one year. The tunneling pr
Jan 1, 1991