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Interactions Between Building And Subsidence MovementsBy Gennaro Gerald Marino
In this paper the main subsidence- ground-structure interactions and an overview of the response of surface structures to subsidence ground movements are presented. The purpose of the paper is to augm
Jan 1, 1986
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Microtunneling Below Clarifiers Past Pipe PilesBy Steven W. Hunt, Gregory C. Baker, Glen J. Rorison
Microtunneling methods were utilized beneath pile-supported clarifier basins to replace settlement damaged sludge drain lines at the Jones Island Wastewater Treatment Plant in Milwaukee, Wisconsin. To
Jan 1, 2001
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Gold Deposition at Gold King, Silverton Caldera, ColoradoBy Bernhard C. Koch, Richard W. Hutchinson, Bernhard Free
The Tertiary Silverton caldera collapsed asymmetrically to the southwest 27.5 m.y. ago. Resurgent volcanic activity is expressed by a quartz-monzonite stock at the southern caldera margin and by the R
Jan 1, 1988
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Spontaneous Combustion In Coal MinesBy Thomas H. Koenning
The number of spontaneous combustion incidents in the U.S. is expected to increase as the consumption of lower rank coals and the use of longwall mining becomes more prevalent. A spontaneous combustio
Jan 1, 1989
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Profile, Strain, And Time Characteristics Of Subsidence From Coal Mining In IllinoisBy Robert A. Bauer
Two basic types of subsidence occur in Illinois: pit and sag / trough. Pits develop over mines less than 165 feet deep and where relatively incompetent strata are found over the mines. Sag subsidence
Jan 1, 1982
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Carbon Dioxide Sequestration By Direct Mineral Carbonation: Process Mineralogy Of Feed And ProductsBy W. K. Collins, C. L. Dahlin, D. C. Dahlin, W. K. O’Connor, G. E. Rush
Direct mineral carbonation was investigated as a process to convert gaseous CO2, into a geologically stable final form. The process utilizes a slurry of water, with bicarbonate and salt additions, mix
Jan 1, 2003
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Coal-Pyrite FlotationBy Kenneth J. Miller
A novel two-stage froth flotation process to remove pyritic sulfur from fine- size coal is described. The process consists of a first-stage, standard coal flotation step in which high-ash refuse and s
Jan 1, 1974
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Soil Conditioning for EPB Shield Tunneling on the South Bay Ocean OutfallBy George E. Williamson, Mikiya Higuchi, Michael T. Traylor
Extensive soil conditioning was required to allow Earth Pressure Balance(EPB) tunneling on the South Bay Ocean Outfall tunnel project in San Diego, California, near the Mexican border. This tunnel ext
Jan 1, 1999
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Practical Due Diligence in Fire AssayDue Dilligance does not only lie in the statistics, but rather in the practical process aspects, which is the window to understanding the statistics.
Jan 1, 2005
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Bringing The Entrepreneurial Mindset Into Mining Engineering EducationBy Rudrajit Mitra, Erik Hulthen, AARTI SORENSEN, TOBIAS HARTMANN, ELISABETH CLAUSEN
There has been an ongoing debate on how to transform engineering education to better prepare students for today’s professional world that is characterized by increasingly complex problems and challeng
Sep 1, 2022
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The Treatment of Steel Plant Wastes by Magnetic CyclonesBy John L. Watson, Suren Mishra
Many of the wastes produced by modern steel plants are pulps or sludges containing significant concentrations of iron and displaying some ferromagnetic characteristics. These waste materials are often
Jan 1, 1992
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Extraction of nickel from chromitiferous overburden by roasting with a CO-C02-N2 gas mixtureBy B. R. Reddy, Y. V. Swamy, B. V. R. Murthy
Chromitiferous overburden containing nickel in oxide form is reduced with CO-CO2-N2 gas mixtures. This converts the nickel oxide to metallic nickel and restricts the iron oxide to the magnetite state
Jan 1, 2000
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Ore/Waste Classification Satisfying Geometric ConstraintsBy R. J. Barnes
Consider a typical blast at a surface gold mine in North America. For example, the low-grade area of Bench 4000 at AMAX Gold's Sleeper Mine (Winnemucca, Nevada). Bench 4000 is 20 feet high (=6m)
Jan 1, 1989
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Waste Disposal In Underground Mines - A Technology Partnership To Protect The Environment (c2773713-3b91-480a-8fc2-bd8bef7063f1)By N. T. Rempe
The underground voids that result from mining provide opportunities for deep geologic waste disposal (DGWD). Such disposal could solve many environmental problems. DGWD takes careful planning, technol
Jan 1, 1997
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Fuel Acquisition And Use Independent Power ProjectsBy F. G. Hyde
Passage of the Public Utilities Regulatory Policy Act ("PURPA") in I 978 created an entirely new industry that is referred to today as the Independent Power Producers ("IPP"). Requirements of project
Jan 1, 1996
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An Expert Control System for Phosphate BeneficiationBy Randy Ynchausti
ERIC GUTIERREZ, Knowledgescape: Our next speaker is Randy Ynchausti. He's the director of development, Knowledgescape systems division, of EIMCO Process Equip- ment Company. The title of Randy&ap
Jan 1, 1998
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Electronic Anemometry - Recommended Instruments & Methods For Routine Mine Airflow Measurements.By Stephen G. Hardcastle, Michel G. Grenier, Kevin C. Butler
Today there are numerous electronic rotating vane and thermal (hot-wire) anemometers, as well as vortex meters available to measure air velocity. Of these, a laboratory and field evaluation has found
Jan 1, 1993
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A Comparison of Grouting Techniques over 30 Years in 1969 and in 1999 for Southern Nevada Water Authority’s Lake Mead IntakesBy Jon Y. Kaneshiro, Stephen J. Navin, Jerry Ostberg
In 1968, the U.S. Bureau of Reclamation awarded S.S. Mullen Construction of Seattle, the Intake Tunnel (488 m by 4 m diameter tunnel) and Pumping Plant No. 1. In1998, the Southern Nevada Water Authori
Jan 1, 2001
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Limestones Of New Mexico And Adjoining Areas Suitable For Sulfur Removal In Coal-Fired Power Plants (8b951c7c-73f1-4033-8b29-9832c5c59739)By Frank E. Kottlowski
Widespread high-calcium (HC) limestones in New Mexico and adjoining areas, are low in magnesium, but some units include shale interbeds that would be deleterious for usage in sulfur removal. In southw
Jan 1, 1995
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J. Steven Gardner; An interview with the 2015 SME President"What is your assessment of the minerals business?My experience with mining has been primarily in the coal sector until about 10 years ago, when I also became heavily involved in the aggregates and in
Jan 1, 2014