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IC 7741 Drill-Dust Collectors Approved By The Bureau Of Mines As Of January 31, 1956 ? IntroductionBy C. W. Owings
One phase of Bureau of Mines health and safety work is promotion of the use of safe and effective dust-collecting devices in connection with rock drilling in coal mines. To insure that adequate equipm
Jan 1, 1956
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Designing the Alaskan Way Tunnel to Withstand a 2,500-Year EarthquakeBy Gordon T. Clark, James R. Struthers, Celal Kirandag
INTRODUCTION Project Background The Washington State Department of Transportation (WSDOT) hired the Seattle office of Parsons Brinckerhoff to lead a team of consultants to produce an Environ-men
Jan 1, 2007
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An undergraduate pilot plant experienceBy L. J. Heaslip, J. M. Toguri, T. R. Meadowcroft, R. L. Addinall
"""Pilot Plant Operations"" is a final-year core course given to the Metallurgy and Materials Science students at the University of Toronto. This course involves a laboratory study of an industrial pr
Jan 1, 1980
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The Economics of Exhaustible Mineral Resources—Concepts and Techniques in Optimization RevisitedBy C. Hutton
"SynopsisThe last commodities supercycle (2003 to 2011) was characterized by a belief in volume at any cost, where absolute output was deliberately prioritized over productivity considerations. This p
Jan 1, 2015
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Construction of I-90 Highway Tunnels Under Boston’s South Station Rail Yard by Box JackingBy Peter van Dijk, Gary Almeraris, Philip Rice
This paper describes the Contractor’s value engineering design and the construction of the Interstate I-90 highway tunnel sections under the South Station railroad yard in Boston, MA for the Central A
Jan 1, 2001
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Production Trends and Economic Characteristics of Canadian Gold MinesBy M. Doggett
All 231 Canadian primary gold mines that produced from 1946 to 2004 were analyzed with respect to their production and economic characteristics. Trend analysis revealed that the average annual capacit
Jan 1, 2007
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Pilot-Scale Frother Testing at Highland Valley CopperBy S. D. D. Welsby
"A pilot-scale flotation column was used to evaluate four polyglycol frothers at Teck’s Highland Valley Copper Mine. The column was fed with flotation plant feed from the grinding circuit cyclone over
Jan 1, 2014
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The Sedex deposits of Selwyn Basin: A Summary Analysis of Factors that must be Addressed for the Successful Development of a World Class Metallogenic BeltBy Neil Westoll
But First, An Overview of the Selwyn Basin and Its Resources ?World-renowned sedimentary-exhalative (SEDEX) deposits of zinc, lead, silver +/-barite ?Significant reserves/resources remain and vast t
May 1, 2006
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Tunnel Construction in Difficult Site Condition for the Longest Highway Tunnel in Himalayan Ranges—IndiaBy Alok Garg, Rajeev Kumar Dayal
The Himalayan ranges have complex geological formation induced with locked up tectonic stresses and squeezing ground conditions. High overburden, steep slopes, perennial snow, and forest cover restric
Jan 1, 2001
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Dynamic Pile Testing In Soils Exhibiting Set-Up - IntroductionBy Juan M. Antorena
A dynamic testing program was performed to evaluate installation procedures, assess capacity of 610-mm (24-inch) diameter open ended steel pipe to evaluate set-up and provide minimum pile tip elevatio
Jan 1, 1995
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RI 7220 Load Loss From Rock-Bolt Anchor CreepBy Edward W. Parsons
To determine in what part and to what extent creep or movement exists in an installed rock-bolt anchor and the effect of the creep or bleedoff on the tension load on a rock bolt, as well as the effect
Jan 1, 1969
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Predicting the probability of Iron-Rich Ultramafic Pegmatite (IRUP) in the Merensky Reef at Lonmin’s Karee MineBy D. Hoffmann, S. Plumb
IRUP is an iron-rich ultramafic pegmatite rock that formed due to hot ironrich fluids and gases replacing local stratigraphic zones of the Bushveld Complex. This study focuses on the estimation of the
Jan 1, 2015
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Effect Of Grinding Media Shapes On Breakage Distribution Function - Introduction - Preprint 09-128By H. Ipek
Industrial grinding machines used in the mineral processing industries are mostly of the tumbling mill type. These mills exist in various types: ball, rod, pebble, autogenous, and semi-autogenous. Bal
Jan 1, 2009
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Satisfying information requirements on mineral extraction by applying Earth Observation methods: First results from EO-MINERSBy W. E. Falck, A. Usubiaga, J. Spangenberg, P. Schepelmann, S. Šolar, D. Wittmer, F. Blanchard
The extraction and processing of mineral resources may be accompanied by environmental impacts. In spite of technological advancements, the enormous increase in production volumes within the last deca
Jan 1, 2011
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Impact of deep-hole opencast blasting on the stability of water dams of a close-by underground coal mine ? SynopsisBy C. Sawmliana
Deep-hole blasting operations in opencast mines are always associated with some annoyance to the surrounding areas in terms of ground vibration, noise, flyrock, etc. These become more severe when unde
Jan 1, 2009
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What is driving the development of integrated technical enterprise systems in the mining industry?By I. Jones
Geologists, engineers, technicians and surveyors have successfully utilized technical software in the mining industry for over 30 years. Software for processing survey, geology, mine engineering and p
Jan 1, 2003
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RI 6056 Measuring Changes In Pillar Strain During Pillar Recovery - Experiments In A New Mexico Uranium MineBy W. L. Dare
Tri-axial strains in pillars, created by pillar robbing, were measured in an experiment at the Dysart No. 1 uranium mine near Grants) New Mexico. At this mine, room-and-pillar stoping is used on the a
Jan 1, 1962
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IC 8212 Subsurface Disposal Of Industrial Wastes In The United States (c80b6827-b919-45ee-83ab-db0c746b2c5d)By Erle C. Donaldson
A study of subsurface waste disposal in the United States shows that in eight States a wide variety of industrial wastes are being injected into formations ranging in age from Precambrian to Recent. M
Jan 1, 1964
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IC 8212 Subsurface Disposal Of Industrial Wastes In The United StatesBy Erle C. Donaldson
A study of subsurface waste disposal in the United States shows that in eight States a wide variety of industrial wastes are being injected into formations ranging in age from Precambrian to Recent. M
Jan 1, 1964
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Laboratory Testwork of Mixed Xanthates for the Raglan OreBy Norman O. Lotter, Simon Yu, Tony Deng, Antonio Di Feo
"Xstrata Nickel’s Raglan operation, northern Québec, achieved paymetal recovery gains in 2007 by switching the collector from potassium amyl xanthate to sodium isobutyl xanthate. To follow on from tha
Jan 1, 2010