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Exploration Review
By D. R. Wilburn
This summary of international mineral exploration activities for the year 2007 draws upon available information from industry, literature and U.S. Geological Survey (USGS) specialists. The summary pr
Jan 1, 2008
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Barrick?s Zaldivar Mine Gets A Dome Cover Over Its Stockpile
The Barrick Zaldivar mine is an openpit, heap-leach copper mine in Region II of northern Chile at an elevation of 3,300 m (10,826 ft), approximately 1,400 km (870 miles) north of Santiago and 175 km (
Jan 1, 2009
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Energy Plan For Mining Operations - Introduction
By F. Mielli
Ranging between 20% and 40% of the typical mining operational costs, energy in mining operations is a growing concern for the industry. However, this concern is a complex, multi-faceted variable that
Jan 1, 2012
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Diesel Emissions Control Strategies For The Use Of Diesel Engines In Underground Coal Mines – Preprint 97-144
By N. Paas
Diesel powered equipment has been operated in underground coal fir mare than 50 years. According to the Mine Safety and Health Administration (MSHA), there are approximately 3,000 diesel units operati
Feb 24, 1997
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Chunnel Repairs Call On Conjet Hydrodemolition Robots
Train services through the Channel Tunnel linking Britain and France where scheduled to be fully restored in February 2009 following several months of repairs after a major fire in the tunnel on Sept.
Jan 1, 2009
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Reconnecting The Rogue River To The Channel Migration Zone: An In-Channel Bank Stabilization Project
By E. F. Schnitzer, D. R. Haight, G. T. Krogman
The 1997 New Year’s Day Rogue River flood near Medford, Oregon, USA, entered historic channels, eroded a 150-foot-wide buffer, and captured an inactive gravel pond located within the channel migration
Jan 1, 2006
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Bleeder Entry Evaluation Using Condition Mapping and Numerical Modeling
One of the most common critical areas of longwall mining in terms of ground stability are the gateroad and bleeder entries. These critical entries provide much-needed safe access for miners and allow
Jan 7, 2020
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Impacts of Geotechnical Issues on Design of the Beacon Hill Tunnel and Station Project
By Michael S. Kucker, Stuart Warren, Robert A. Robinson, Michael J. Lehnen, David McAllister
Geotechnical conditions exposed by the phased exploration programs have had a major impact on the selection of excavation and support methods, dewatering requirements, size of openings, vertical align
Jan 1, 2005
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GIBE II Tunnel Project?Ethiopia: 40 Bars Of Mud Acting On The TBM ?Special Designs And Measures Implemented To Face One Of The Most Difficult Events In The History Of Tunneling?
By Antonio De Biase
In October 2006, a 7m Double Shield TBM, boring through very poor volcanic formations, was pushed back by fluid mud, which presence had not been detected during previous field investigations, due to t
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Slipforming The Bath County Shafts
By William D. Leech, Peter S. Buskirk
Virginia Electric and Power Company commencing in early 1985 will begin operating the Bath County Pumped Storage hydroelectric facility, presently the largest capacity installation of its kind. Six co
Jan 1, 1985
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Innovative Precipitation-Flocculation Process for Treating Turbid Waters from Gualaxo do Norte River, Brazil Mining, Metallurgy and Exploration
By H. A. Oliveira, A. Azevedo
Physical and chemical characterization and solid/liquid separation of turbid waters from a river affected by an iron tailing rupture disaster (Gualaxo do Norte River, Brazil) were studied at bench sca
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Innovative Precipitation-Flocculation Process for Treating Turbid Waters from Gualaxo do Norte River, Brazil Mining, Metallurgy and Exploration (9ea0be5c-dee1-4a93-a1ee-3cfd2aa5bfaf)
By H. A. Oliveira, A. Azevedo
Physical and chemical characterization and solid/liquid separation of turbid waters from a river affected by an iron tailing rupture disaster (Gualaxo do Norte River, Brazil) were studied at bench sca
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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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Carbon Neutral, Energy Efficient Method For Gas Production From Methane Hydrates
By T. Yegulalp, M. Castaldi
As global energy demands increase, there will be a critical need to employ fuels that have minimal environmental impacts. While hydrogen is considered the ultimate fuel for that purpose, hydrocarbon
Jan 1, 2007
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Sinking A Freeze Shaft With Installation Of A Water-Tight, Flexible Lining
By Klaus Stoss, Bernd Braun
The sinking and lining of a large mine shaft with 8.0 m i.d. and 1,133 m total depth is described in detail. The ground freezing method was applied to safely sink the shaft through unstable, waterbear
Jan 1, 1983
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Analysis Of Recirculation In Booster Fan Systems Using CFD
By J. M. Wempen
Booster fans, large underground fans, can increase the volumetric efficiency of ventilation systems by helping to balance the pressure and quantity distribution throughout a mine, reducing leakage and
Feb 27, 2013
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Hobson And Rosedale Tunnels?New Technology In Auckland
By Harry Asche
The last 12 months has seen the construction of the first Earth Pressure Balance (EPB) TBM excavated tunnel in New Zealand on the Project Hobson sewer storage tunnel for Watercare Services Limited, wi
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Murray Basin heavy mineral strandline deposit mineralogy
By A. W. Popp
After forty years of exploration and development, the heavy mineral sand deposits of the Murray Basin are on the eve of substantial exploitation by Iluka Resources Limited, Southern Titanium NL and RZ
Jan 1, 2005
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Kennecott Celebrates Its Centennial
On June 4, Kennecott Utah Copper (KUC)marked the centennial of the founding of the original company. Bill Champion is president and chief executive officer of KUC. He said, “What has happened during
Jan 1, 2003
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Introducing in January 2019... SME’s new member benefit
By None None
Life as a mining/mineral professional doesn’t leave much time for perusing 20-page technical papers. Yet, being technologically savvy is part and parcel of a successful career in this industry. What’s