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Annual Review 2003 - Mining Review
By P. A. Plunkert, D. E. Morse, L. McCartan, S. F. Sibley
The average annual growth rate of real gross domes-tic product (GDP) from the third quarter of 2001through the second quarter of 2003 in the United States was about 2.6 percent. GDP growth rates in th
Jan 1, 2004
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Caterpillar With Tunnel Boom Boosts Productivity On Swiss Project
A dedicated tunnel construction version of the Caterpillar 328D LCR compact radius excavator is proving highly productive on the A9 Autoroute construction project near Visp, in Switzerland. It is the
Jan 1, 2009
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What we learned about MINING ENGINEERING and you
By Marianne Snedeker
In September 1985 we published a questionnaire asking about the content of MINING ENGINEERING and about your interests. By Dec. 10, our cutoff date, we had 430 responses, representing about 1.5% of th
Jan 1, 1986
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Monitoring Used as an Alarm System in Tunneling
By M. Perolo, A. Contini, E. Ramelli, G. Borgonovo, L. Locatelli
This paper presents the ground settlement monitoring system used during the construction of two tunnels bored by two EPB TBMs, beneath the existing and active railway embankment in Bologna (Italy). Th
Jan 1, 2007
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Comparison of Face Pressurized Shield Methods in Various Soil Conditions
By Klaus Rieker
Over the last 30 years Wayss & Freytag Ingenieurbau AG has gained a lot of experience in mechanized tunnelling on various major projects. During this period most important developments concerning the
Jan 1, 2005
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Geographic Information Systems In Borate Exploration: A Case Study At “Old Borate”
By J. R. Piper
“Old Borate,” located in the Calico Mountains east of Barstow, California, lead domestic colemanite production from 1884 through 1907. Mineral exploration at “Old Borate” in the early 1980's, e
Jan 1, 2001
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Silica Dust Sources In Underground Metal/Nonmetal Mines - Two Case Studies (b311d9b0-a7c4-4e80-9fbb-e293d45f1daa)
By R. H. Grau
NIOSH’s Pittsburgh Research Laboratory is currently involved in research to identify silica dust generation in underground metal/nonmetal mines. The ultimate goal of this research is to develop con
Jan 1, 2002
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2011 Permeation Test Results For Grouts Made With Ultrafine Cement
By Raymond W. Henn
The 32nd annual short course ?Grouting Fundamentals and Current Practice? was held at the Colorado School of Mines, June 13-17, 2011. The field demonstration portion of the course was conducted June 1
Jan 1, 2011
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Coal Mining Subsidence and Golden Eagle Habitat
By Val E. Payne
Issues between resource utilization and resource preservation often develop in connection with coal mining. One such conflict exists in eastern Utah where PacifiCorp and Energy West Mining Company are
Jan 1, 1986
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Investigation of Microwave Exposure on Beneficiation of Low-Grade Banded Iron Ore Mining, Metallurgy and Exploration
By Nikhil Dhawan, Shrey Agrawal, Veeranjaneyulu Rayapudi
India’s steel vision of 2030 requires a huge amount of quality iron ore. The utilization of low-grade iron ores such as banded iron ores will play an important role to achieve the same production. The
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Save Your Energy and Improve Your Productivity
By W. J. Kennedy, John D. Gardner
Introduction During the past 10 years, energy costs in mining have risen from about 4% to as much as 25% of total production cost. When combined with declining ore grades, these costs exert inordinat
Jan 11, 1983
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Underground Mine Ventilation: Some General Considerations
By L. K. Marshall
The importance of high quality underground mine ventilation is readily apparent. The principles of primary and auxiliary mine ventilation, however, are sometimes less readily apparent. The first artic
Jan 1, 1982
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The 1990’s – Politics and the Environment
By Georgene Renner
At the beginning of the 1990s, Communism fell and signaled the end of the Cold War. The world rejoiced but also watched and waited to see how those countries would restructure themselves. The 1990
Jan 1, 2007
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Missouri-Rolla’s Online Program Gains Popularity
By Tad S. Golosinski, R. Larry Grayson
Online education is not new. During the last decade, it has reached the stage where many universities offer a variety of courses, degrees and programs without any associated residency requirements.
Jan 1, 2002
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Separation of Fe and Mn from Manganiferous Iron Ores via Reductive Acid Leaching Followed by Magnetic Separation Mining, Metallurgy and Exploration (d04b1b84-2a8b-409f-b5c1-e20532b1d7ae)
By Soner Top
In this study, a process to separate manganese and iron from manganiferous iron ores by reductive acid leaching followed by magnetic separation was conceived and experimentally tested. In the leaching
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Separation of Fe and Mn from Manganiferous Iron Ores via Reductive Acid Leaching Followed by Magnetic Separation Mining, Metallurgy and Exploration
By Soner Top
In this study, a process to separate manganese and iron from manganiferous iron ores by reductive acid leaching followed by magnetic separation was conceived and experimentally tested. In the leaching
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Study On The Recycling Of Valuable Metals In Spent Al2O3-Based Catalyst
Based on X-ray phase analysis and exploratory experiments, a new technology was developed to recycle multiple valuable elements in spent Al2O3-based catalyst. The experimental results showed that afte
Jan 1, 2007
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Proactive Approach To Addressing Environmental Concerns For Tunneling Under Austin
By Ray Brainard
The Jollyville Transmission Main will be a 10.5-km- (6.5-mile)-long, 213-cm (84-in.) diameter rock tunnel. The tunnel will pass beneath the Balcones Canyonlands Preserve, which was established to prot
Jan 1, 2012
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Tunneling And Trenchless Technology Key To Charleston?s Infrastructure
By Larry F. Drolet
Charleston, SC is anything but boring. The city was founded in 1670 and has played a significant role throughout the history of the United States. Located along the coast of the Atlantic Ocean in the
Jan 1, 2013
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A Case Study of the Stability of a Non-Typical Bleeder Entry System at a U.S. Longwall Mine
By Ihsan Berk Tulu, Mark Van Dyke, Ted Klemetti, Deniz Tuncay
"Longwall abutment loads are influenced by several factors, including depth of cover, pillar sizes, panel dimensions, geological setting, mining height, proximity to gob, intersection type, and size o
Jan 1, 2019