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Geophysics And Geochemistry For Exploration In Deep Carbonate Terranes - Introduction
By John B. Gustavson
The mineral deposits found in carbonate facies rocks of sedimentary basins include deposits comprised of the country rock itself such as limestone for chemical uses, dolomite for road aggregate, and a
Jan 1, 1976
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Portland, Oregon’s Alternative Contract Approach—A Final Summary
By Paul Gribbon, Julius Strid, Greg Colzani, Jim McDonald
Portland, Oregon’s $370 million West Side Combined Sewer Overflow Tunnel Project has completed the final phase of construction and commissioning. The construction contract, which began in September 20
Jan 1, 2007
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Earth Pressure Balance Tunneling In Canada
By Laura McNally
In 2006, McNally International Inc., in a joint venture partner-ship with Aecon Constructors, was the successful bidder on two York Region Tunnel Projects: the Bathurst Collector/Langstaff Trunk Sewer
Jan 1, 2008
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Improved Selectivity Of Super-Conducting Dry HGMS Of Fine Powders By Vibration
By Y. Wang, E. Forssberg, A. Johansson, B. Chan
A super-conducting high gradient magnetic separator with matrix vibration in dry separation mode is a powder purification device, which has been used to remove weakly magnetic impure particles from fi
Jan 1, 2001
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A Commentary on the Reporting of Coal Exploration Results, Resources and Reserves
By S. Rupprecht
"This article addresses the prevalence of poor public reporting practices of coal exploration results, coal resources and coal reserves in southern Africa. Currently, the reporting of coal tonnage wit
Jul 1, 2019
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Developing a Virtual Reality Environment for Mining Research Mining, Metallurgy and Exploration (SPRINGER)
By Brendan Demich, Brendan Macdonald, Timothy J. Orr, Jason Navoyski, Jennica L. Bellanca, William J. Helfrich
Recent advances in computing, rendering, and display technologies have generated increased accessibility for virtual reality (VR). VR allows the creation of dynamic, high-fidelity environments to simu
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Pumping and Drainage
By Christopher J. Bise
INTRODUCTION The control of nuisance water in a mine is extremely important; left uncontrolled, nuisance water can have a severe effect on haulage, ventilation, production, and the health and safe
Jan 1, 1986
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Transporting A TBM Through A Large City On The East Side CSO Tunnel Project In Portland, OR
By Niels Kofoed
Upon completion of the 6,200 m (20,340 lineal ft; lft) North Tunnel drive for the Portland East Side Combined Sewer Overflow (CSO) Tunnel project in Portland, OR, the slurry tunnel boring machine (TBM
Jan 1, 2011
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Isothermal Reduction Kinetics and Mechanism of Pre-oxidized Ilmenite Mining, Metallurgy and Exploration
By Mingyang Li, Yan Lv, Xiaolong Ma, Xudong Gao, Jie Zhao, Yingyi Zhang
The reduction process of pre-oxidized ilmenite concentrate powder in 30%CO–70%N2 atmosphere was characterized by thermogravimetric and differential thermogravimetric (TG-DTG) analysis system at the te
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Isothermal Reduction Kinetics and Mechanism of Pre-oxidized Ilmenite Mining, Metallurgy and Exploration (9bd09701-4fce-4153-aadd-0723612382a9)
By Mingyang Li, Yan Lv, Xiaolong Ma, Xudong Gao, Jie Zhao, Yingyi Zhang
The reduction process of pre-oxidized ilmenite concentrate powder in 30%CO–70%N2 atmosphere was characterized by thermogravimetric and differential thermogravimetric (TG-DTG) analysis system at the te
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Up-to-date Excavation, Support, and Lining Solutions Meet Timing Requirements for the First Two Tunnels of the 2006 Winter Olympic Games
By Georgios Kalamaras, Chiaia Dinu, Platania Paolo, Alessio Carlo, Giampiero Cirvegna, Claudio Santucci
The Project alignment initiates north of Pinerolo, along the State Road 23[S.S. 23] that is one of the principal arteries to the northwestern Alps where a number of Olympic events for the 2006 Winter
Jan 1, 2005
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Recovery Of Fine Coal From Preparation Plant Refuse Using Column Flotation
By J. G. Groppo, A. E. Bland, B. K. Parekh, W. F. Stotts
Many coal preparation plants discard fine coal (generally minus 100 mesh) because it is difficult to beneficiate economically. At the Kentucky Energy Cabinet Laboratory (KECL), the waste streams from
Jan 1, 1988
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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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Ground Control Design For Highwall Mining (237c3f7a-5149-4dad-a860-b8b9ad20fedb)
By R. Karl Zipf
Highwall mining is an important surface coal mining method, and it may account for approximately 4% of total U.S. coal production. Highwall stability is the major ground control related safety concer
Jan 1, 2005
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Industrial Minerals 1987
By L Baumgardner, A. V. Castelli
Barite In 1987, United States mine production of barite increased 15.870, consumption (sold or used by grinding plants) increased by 6.97, and imports are estimated to have fallen by 19.57. World
Jan 6, 1988
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A Review Of The Technology Of Glass Recovery From MSW ? Introduction
By Hugh R. Rhys
The question of the desirability of recovering cullet from MSW in order to recycle it into the manufacturing of glass containers remains a controversial one. The main factors appear to be: 1. The pos
Jan 1, 1975
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Clay Mineralogy Of The Goathill North Rock Pile, Questa Mine, Taos County, NM: Origins And Indications Of In-Situ Weathering - Preprint 09-098
By K. Donahue
Clay minerals play an important role in the gravitational stability of man-made rock piles by affecting geotechnical and hydrological characteristics of the material. The Goathill North rock pile at t
Jan 1, 2009
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Waterproofing: Key to SCL tunnel lining design
The global tunneling industry has many challenges, both technically and financially, with the latter likely to be a significant feature over the next few years. Many industries have ad-opted standard
Jan 1, 2010
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Filtered Air Supply System Reduces Roof Bolter Operators? Exposure To Respirable Dust
The National Institute for Occupational Safety and Health (NIOSH) conducted a study to determine the effectiveness of a filtered air delivery system to reduce respirable dust exposure to roof bolter o
Jan 1, 2012
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Coal (Coal production by coal-producing regions, 2001)
With the dawning of a new century came the beginning of a new era in the coal industry. Instead of the traditional practice of only buying and selling produced coal in the United States, a coal futur
Jan 1, 2002