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Manhattan Shaft, New York City Water Tunnel No. 3
By Edward (Ted) M. Dowey
Shaft 26B of New York City’s Third Water Tunnel was constructed by Frontier-Kemper Constructors, Inc. of Evansville, Indiana. The 176.8 m (580 ft) deep shaft will serve as the construction shaft for t
Jan 1, 1997
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Health Effects Of Amosite Mining And Milling In South Africa
By Jill Murray
This study focuses on the amosite mining region in South Africa and associated health effects, compared to other mined asbestos fiber types. Historically, dust and fiber levels were high in the amosit
Jan 1, 2007
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Industrial Evolution From Micro to Macro Engineering
By Richard R. Klimpel
During the last 28 years, I have had the very challenging and rewarding experience of working as an engineering professional in a large multinational company, both as a manager of engineers and engine
Jan 1, 1993
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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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Brightwater Conveyance System: Ground Freezing For Access Shaft Excavation Through Soft Ground
By Joseph M. McCann
The Brightwater regional wastewater treatment facility, under construction in King County, WA, includes an extensive conveyance system that will feature deep, soft-ground tunnels and shafts. Excavatio
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Creation Of An Underground Mine Development Sequencing Optimizer
By M. J. Blattman
Upon completion of an underground mine design, the planning engineer is faced with a surprisingly complex problem, “What development and mining sequence should be implemented so as to maximize the ret
Jan 1, 2003
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High Speed Communications In Harsh Environments
Extending an organization?s knowledge base throughout the entire enterprise can improve operations. Until recently, though, field operations were often left out of the information loop, as extending
Jan 1, 2009
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Introduction (f248dc61-7d23-42d4-878e-d425d635fc78)
By Christopher J. Bise
PRINCIPLES OF MINE PLANNING During the initial planning stages, all mining operations are analyzed and evaluated in a similar fashion. This similarity holds true because the mine-planning procedure ca
Jan 1, 1986
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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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Completion And Commissioning Of The SMART Dual-Purpose Tunnel ? Introduction
By Arthur Darby
The city of Kuala Lumpur was founded in 1857 by miners seeking tin near the confluence of the Klang and Gombak rivers. The rapid development of the city and surrounding area since independence has led
Jan 1, 2008
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Using Option Pricing to Predict Market Values of Publicly Traded Mining Companies
By Andrew K. Simpson
What will this deal do to the company’s stock price? This question arises when a publicly traded mining company is presented with a new mine project, or business combination. The standard tool fo
Jan 1, 2000
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An Evaluation Of The Risks Of Lung Cancer And Mesothelioma From Exposure To Amphibole Cleavage Fragments
By John F. Gamble
Amphiboles are hydrated mineral silicates five of which occur in asbestiform habits as asbestos grunerite (amosite) asbestos, riebeckite (crocidolite) asbestos, anthophyllite asbestos, tremolite asbes
Jan 1, 2007
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Ambitious Endeavors in Mechanized Shaft Construction: A Case History of Two Mine Shaft Projects in Australia
By John Zeni
In Australia during the 1990s, Zeni Drilling took on several demanding shaft boring contracts. This paper describes the safety, operational, technical and environmental advantages derived through the
Jan 1, 2001
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Tunneling Through Faults In Volcanic Rocks For The Construction Of The La Joya Project (Costa Rica)
By R. Grandori, L. Pellegrini
The construction of the La Joya hydropower plant (Costa Rica) was awarded by the Spanish power company, Union Fenosa, to the Italian Joint Venture formed by the companies SELI SpA and Ghella SpA. T
Jan 1, 2007
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Mining Review
Minerals are fundamental to the U.S. economy, contributing to the real gross domestic product (GDP) at several levels?mining, processing and manufacturing finished products. The estimated growth rate
Jan 1, 2008
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Processing researchers continue efforts to streamline US mining
By P. Rosten
US mine production of iron ore in 1984 showed some improvements compared to 1983. But reduced demand from the iron and steel industry caused temporary shutdowns of many iron ore mines and pelletizing
Jan 5, 1985
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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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Gold Companies Look at Mexico, Dominican Republic
By Steve Kral
When the price of gold cracked the US$9.60/g(US$300/oz) mark last year, the gold-mining industry began to crank up again. This followed several years of gold prices that had languished in the mid-200
Jan 1, 2003
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Kenya- A New Source Of Titanium Minerals
By J. C. Potvin
Although the occurrence of deposits of titanium minerals on Kenya’s present day beaches and adjacent dune systems has been well documented, the potential for older formations to host economically viab
Jan 1, 2001
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Flash Smelting at Magma Metals Co.
By Tom Gonzales
At San Manuel, AZ, Magma Metals Co. operates an Outokumpu flash furnace, four Peirce-Smith converters and two anode casting wheels that are supported by six anode vessels. Process gasses from the flas
Jan 1, 1992