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Majors, Juniors Spur Record Attendance at PDAC
By Steve Kral
Good times make for happy miners. And the past few years have seen a lot of smiling mining engineers, geologists, metallurgists, corporate executives, analysts, investment bankers and shareholders.
Jan 1, 2006
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Management Challenges in Nurturing a Safe Work Environment
By T. W. Camm
"As engineers, we are trained to use logical, rational problem solving to insure our mines operate at maximum efficiency. We tend to use the same technical approach to design safety into all mining sy
Jan 1, 2015
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Concentrations and fractionation of REEs in marine ferromanganese crust deposits controlled by water depth
By Andrea Koschinsky, Peter E. Halbach, Margret Halbach, Andreas Jahn
"Ferromanganese crusts contain hydrous Mn and Fe oxides as main metal compounds together with some economically interesting minor elements such as Co, Ni, Ti and Cu and trace metals such as Mo, W, Nb,
Sep 1, 2014
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Flocculation Dewatering Of Phosphatic Clay
By D. Tao, R. Honakey, B. K. Parekh
The dewatering of stable phosphatic clay suspensions generated from phosphate beneficiation in the central Florida is an issue of practical and theoretical importance. Because of its tiny particle si
Jan 1, 2006
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Enhancement Of Bacterial Iron And Sulfate Respiration For In-Situ Bioremediation Of Acid Mine Drainage Sites: A Case Study
By James M. Harrington, A. Azra Bilgin, JoAnn Silverstein
The prevention of AMD in situ is more attractive compared to subsequent downgradient treatment alternatives that do not involve source control. AMD source control can be achieved by shifting the micr
Jan 1, 2005
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Construction Of The North Dorchester BAY Cso Storage Tunnel In Boston
By J. Davies
This paper describes the successful management and construction of the 5.18 m (17 ft) diameter, segmentally lined, North Dorchester Bay CSO storage tunnel in Boston, MA. This 3,300 m (10,830 ft) long
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Uranium Mining In Arizona Breccia Pipes –High Grade And Safe
By K. Wenrich
The uranium industry has made a dramatic turnaround in the past three years that even the most optimistic economist was not willing to predict during the uranium downswing of the 1990s. Uranium reach
Jan 1, 2007
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Conceptual Design for a Deep Underground Science and Engineering Laboratory Cascades
By Roberto J. Guardia, Robert A. Robinson, John Wilkerson, Wick Haxton
Several candidate sites have been proposed for the Deep Underground Science and Engineering Laboratory (DUSEL), a facility that would provide over 2000 meters of overburden to screen out cosmic rays t
Jan 1, 2005
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Column Flotation Of Carbon At The Royal Mt. King Mine
By James N. Orlich
Meridian Gold Company's Royal Mt. King mine (RMK), a subsidiary of FMC Gold Company, is located approximately 40 miles east of Stockton, California on the western edge of the historic mother lode
Jan 1, 1992
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Influence of Rock Mass Properties on Performance of Hard Rock TBMs
By Jamal Rostami, Richard Kastner, Ahmad Ramezanzadeh
Improving the accuracy of the performance prediction models for hard rock Tunnel Boring Machines (TBMs) is important in estimation of the schedule and cost of tunnelling in related projects. The effec
Jan 1, 2005
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The application of nitrogen to control a spontaneous combustion event during a longwall face salvage
By Leeming. J. R.
In the UK, powered supports are normally salvaged from longwall faces on completion of production, for reuse on the next unit. Where a spare set of supports are held, the salvaged supports are often s
Jan 1, 2009
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High Performing HMA Design Optimization
By O. F. Brown
The use of quality materials (aggregates and asphalt binder) in optimal proportions is the key to producing optimally performing hot mix asphalt (HMA). The Superpave mix design standard in the US intr
Jan 1, 2012
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A New Model For Blast Fragmentation Prediction Based On Multivariate Analysis - Introduction
By T. Hudaverdi
Several studies have been conducted on blastability and prediction of fragmentation. The term blastability is used to refer the susceptibility of the rock to blasting and is closely related to fragmen
Jan 1, 2011
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Ghana: Gold, Diamonds And More
By K. Grubaugh
Ghana’s physiographic and geologic features are the basis for its long mining history. The Gold Coast colony has been a significant producer of gold. The gold of the Akan forest (Ghana) was a terminus
Jan 1, 2001
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Chloride Leaching Of A Complex Matte: Comparison Of Oxidants
By H. I. Kim
The leaching of a complex matte in chlorine and chloride media was studied. The matte was prepared from manganese nodules by the reduction smelting-sulfidation route. From XRD analysis, the major phas
Jan 1, 2009
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Liebherr?s T282 B trucks operating in Brazil
In September, a fleet of 363-t (400-st) Liebherr trucks became operational in Brazil and have already begun moving iron ore in Para state. Prior to the arrival of the the trucks the Brazilian fleet
Jan 1, 2010
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An Evaluation Of The Strength Of Slender Pillars
Pillars with width to height ratios of less than 1.0 are frequently created in underground hard rock mines. The strength of slender pillars can be estimated using empirically developed equations. Ho
Jan 1, 2006
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Impact of air velocity and support advance on shield-generated dust
Steady increases in longwall production have required operators to apply greater quantities of ventilating air in an effort to control and dilute respirable dust. Significant increases in shearer spee
Jan 4, 2010
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The Hallandsås Dual Mode TBM
By Werner Burger
The Hallandsås project with a long history, first started in 1991, is well known in the tunneling community. In the past it has been stopped twice for technical and environmental reasons. The third at
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Subsurface Repository Ventilation Design
By Edward Thomas
Yucca Mountain Overview The U.S. Department of Energy?s Yucca Mountain Project is a geologic repository project designed to receive, handle, package, transport, and emplace spent nuclear fuel and hig