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Risk Quantification in the Mineral Sector
By K. Bounou, K. Komnitsas
"Risk quantification may be used as a sustainable development index in the mining industry, since it encompasses both economic and social factors. In addition, it may assist in the development of a fr
Jan 1, 2005
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Expansion And Modernization Of An Iron Ore Pelletizing Plant In Northern Sweden
By M. Ahrens
The paper describes the main drive systems of an iron ore pelletizing plant and related important design aspects. It is shown how today?s drive systems provide the desired flexibility for the process
Jan 1, 2008
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Port of Miami Tunnel Study: Bored or Immersed Tubes?
By Eldon L. Abbott, Rebecca K. Bolan
The Florida Department of Transportation, Florida’s Turnpike Enterprise is studying the feasibility of a 1128 meter (3,700 foot) vehicular tunnel to provide direct access for Port of Miami traffic to/
Jan 1, 2005
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The Relationship Between Tunnel Convergence and Machine Operational Parameters and Chip Size for Double Shield TBMs— A Case History of Ghomroud Water Conveyance Tunnel
By Jamal Rostami, Ebrahim Farrokh
Selection of tunneling method, specially the use of shielded machines for application in deep rock tunnels can be heavily impacted by presence of ground convergence and squeezing conditions. Tunnel co
Jan 1, 2007
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The Search For Asbestos Within The Peter Mitchell Taconite Iron Ore Mine, Near Babbitt, Minnesota
By Malcolm Ross
Asbestos crystallizes within rock formations undergoing intense deformation characterized by folding, faulting, shearing, and dilation. Some of these conditions have prevailed during formation of the
Jan 1, 2007
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Tunnel Boring Machine Development
By Martin Herrenknecht
Tunnel boring machine (TBM) development continues to take on not only larger diameters, but also more difficult ground conditions. Ground conditions consisting of unstable faces with water pressures u
Jan 1, 2008
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Rheological Behaviors In Wet Ultrafine Grinding Of Limestone
This paper investigates the effects of solids concentration and the addition of Dispersant S40 on the flowability of original and ground limestone slurries. A rotational viscometer with a concentric c
Jan 1, 2007
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An American Down Under Living And Working In Australia - Introduction
By J. G. Pippenger
The mining industry has been Australia?s major economic driver over the past decade, contributing 8% to Australia?s Gross Domestic Product and 26% of Australian Stock Exchange Market capitalisation.
Jan 1, 2011
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Ocean mining and deep-sea conservation: Who are the players? What is the game?
By S. Kim Juniper
"This presentation aims to serve as a primer on conservation, research and regulatory organizations interested in the environmental impact of deep-sea mining. It will also consider a recent, early-sta
Sep 1, 2014
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Managing Plant Productivity With A Web Server Technology
By S. Culp, P. Metcalfe
Web technologies and the Internet have revolutionized the computer industry. The Web browser technologies have also moved to portable devices such as Personal Digital Assistants (PDAs) and mobile phon
Jan 1, 2002
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Preliminary results of physical, geochemical, and sediment characteristics in the Benthic environmental Impact experiment Site (BIS) of Korea
By Kiseong Hyeong, Young-Tak Ko, Gee Soo Kong
"The benthic environmental impact experiment addresses environmental impacts at a specific site related to deep-sea mineral resource development. For such a purpose, since 2010 we have carried out ess
Sep 1, 2014
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Effects of ventilation and gob characteristics on spontaneous heating in longwall gob areas
By L. Yuan
In the U.S. coal mining industry, most spontaneous combustion fires occur in longwall or worked-out gob areas. In order to reduce the fire hazard caused by spontaneous combustion, it is important to u
Jan 1, 2009
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Design and Risk Management Strategy for the Sound Transit Beacon Hill Station and Tunnels
By Joseph Gildner, Donald J. Phelps, Jürgen Laubbichler, Christopher Tattersall, David McAllister
The Beacon Hill Station and Tunnels portion of the Sound Transit Central Link Project consists of one mile of twin rapid transit tunnels, an underground station, portals and ancillary works constructe
Jan 1, 2005
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The Economics of Silver and the Miner
By Hugh Douglas
In the past two years recent increases in silver prices over levels that prevailed for many years have changed supply/demand patterns. On the supply side, a silver mining boom is in progress in the Un
Jan 1, 1981
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Lithologic Controls On Aggregate Quality In A Mountain-Front Alluvial System--An Example From The Colorado Front Range
By D. A. Lindsey
Gravel lithology affects the quality of aggregate because different rock types in gravel have different physical and chemical properties. The lithologic composition of alluvial gravel reflects the com
Jan 1, 2002
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Continuing The Legacy: An Update On The Construction Of The New Second Avenue Subway
By Jaidev Sankar
The dream of constructing the new Second Avenue Subway in New York has finally become reality as the first construction contract package is currently underway. This first contract requires the constru
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Tunnel Boring at Stillwater’s East Boulder Project
By Clayr Alexander
Stillwater Mining Co. (SMC) is engaged in developing, extracting, processing and refining palladium, platinum and associated metals (PGM)from the J-M Reef. This geological formation is located in Sti
Jan 1, 1999
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Review of Issues Related to Cerchar Abrasivity Testing and Their Implications on Geotechnical Investigations and Cutter Cost Estimates
By Jamal Rostami, Levent Ozdemir, Amund Bruland, Filip Dahl
Cerchar Abrasivity Index (CAI) is one of the commonly used tests to evaluate rock abrasiveness for cutter life/cost estimations of TBM projects. There are at least 3 style machines, 2 different pin ha
Jan 1, 2005
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73rd Street TARP Relocation McCook Cup Reservoir: Contract 97-156-2H
By Brent Duncan, Doug Harding, Bob Stier
The 73rd Street Tunnel Project is part of “The Tunnel and Reservoir Plan” (TARP)also known as the Deep Tunnel Project, and is located in the Village of Bedford Park, County of McCook, State of Illinoi
Jan 1, 2003
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Empire Pebble Crushing Circuit, Going Back To Basics, Is The Crusher Crushing?
By H. Walqui
This paper describes operating gains resulting from standardizing operating and maintenance practices to improve the performance of the pebble crushing circuit at he Empire Concentrator. Past efforts
Feb 27, 2013