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IC 6864 Accidents In Tennessee Coal Mines 1932-34By Frank E. Cash
The work of the United States Bureau of, Mines is concerned primarily with the prevention of accidents in the mining, petroleum, and allied industries. This report analyzes the fatal accidents in the
Jan 1, 1935
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Design of Precast Segmental Tunnel Lining in a Design‑Build Environment - RETC2021By David Mast, Irwan Halim, Seung Han Kim
Nowadays more infrastructure tunnel projects are procured using design-build method. In this environment, the Owner’s engineer would typically provide performance requirements for the design-builder,
Jun 13, 2021
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Preparing Coal-Water Slurry Fuels From Bituminous Coal SourcesBy Joel L. Morrison
The preparation of coal-water slurry fuel (CWSF) has the potential to be a commercially viable technology for the coal industry. The technology base required to prepare stable CWSF using grinding circ
Jan 1, 1993
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RI 3149 Salts In Tri-State Mill Waters: Their Ill-Effect On The Flotation Of Blende And Their Removal ? IntroductionBy A. B. Campbell
The mines in the eastern part of the now active region of the Tri-State zinc district of Missouri, Kansas, and Oklahoma have unusually acid water, which during periods of moderate or no rainfall As us
Jan 1, 1932
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Diamond Mining in South AfricaBy W. L. Honnold
AS BOTH South Africa and diamond mining are unfamiliar subjects it seems best that on such an occasion as this I should endeavor to reflect the atmosphere of the place and to picture the mines from an
Jan 1, 1925
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IC 7234 Marketing Kyanite And Allied Minerals ? IntroductionBy Nan C. Jensen
Modern high-temperature metallurgical processes have created a demand for raw material for furnace parts and lining that not only will with-stand high temperatures is but will not react with the subst
Jan 1, 1943
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North 27th Street ISS Extension: Unique Owner/Contractor Agreement Settles Major DisputesBy Donald J. Olson
The North 27th St. ISS Extension tunnel will, under present plans, be the last constructed section of Milwaukee Metropolitan Sewerage District?s (MMSD?s) existing deep tunnel system. The 6.5 m (21 ft)
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Pit Limit Shell Generation – Hand MethodsBy Benjamin C. Koskiniemi
Introduction When evaluating any ore body, one of the first questions concerns the ore reserves. In the case of an open pit mine, this is not possible to answer reliably until the ultimate (final)
Jan 1, 1979
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Geomechanical Modelling of the Mount Isa Copper Deposit – Predicting MineralisationBy R O’Sullivan, D Taylor, J G. McLellan, B Miller
The Mount Isa copper deposit is located adjacent to the city of Mount Isa, Queensland, and lies within a series of Palaeoproterozoic to Mesoproterozoic Superbasins. The deposit is hosted almost entire
Aug 18, 2014
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Recent advances in tailings testing methodsBy D J. Williams
The majority of surface tailings storage facilities continue to employ sub-aerial tailings slurry deposition. Surface TSFs are typically sized and operated in a way to minimise the initial capital cos
Jul 23, 2018
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RI 4133 Concentration of Fluorite Ores from Arizona, California, Idaho, Montana, Nevada, and WyomingBy B. K. Shibler, J. V. Batty, G. M. Potter, H. D. Snedden
"INTRODUCTION As a part of the investigations of strategic mineral deposits in the United States under the Strategic Minerals Act. Engineers of the Bureau of Mines examined and sampled numerous deposi
Nov 1, 1947
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Influência Da Temperatura De Aquecimento Na Resistência Mecânica De Um Aço MicroligadoBy Pedro Gabriel Bonella de Oliveira
O processo usual para elaboração de aços utilizados na indústria de petróleo e gás é a laminação controlada, porém, não é adequado para fabricação de peças de geometria complexa, como juntas e conexõe
Aug 17, 2017
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Pricing And' Buyer Selection AlternativesBy Walter J. Mead
By American tradition, if not by rational decision, publicly owned natural resources have been transferred to private industry for processing. The process of transfer requires specific determination o
Jan 1, 1976
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Turbo Pulp Lifter (TPL™) - An Efficient Discharger to Improve SAG Mill PerformanceBy Sanjeeva Latchireddi
"Deteriorating ore grade and high demand of metals has tremendously influenced the unit capacity of SAG mills. Pebble circuits have been added to the existing SAG circuits to increase their unit capac
Jan 1, 2007
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Carbonizing Properties: West Virginia Coals From The Beckley Bed, Caretta No. 5 Mine, McDowell County, And Glen Rogers No. 2 Mine, Wyoming County - Introduction And SummaryBy D. A. Reynolds
THIS PAPER gives results of an investigation of the composition and carbonizing properties of coals from the Beckley bed, Caretta No. 5 mine, Susanna, McDowell County, and Glen Rogers No. 2 mine, Glen
Jan 1, 1953
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Managing high volume water inflows of 300 L/s in the planning and development of a large scale underground Gold Mine – the Didipio storyBy J P. Evert
Didipio gold-copper mine operation is situated in the island of Luzon, approximately 270 km north of Manila in the Philippines, in an area of high seasonal rainfall. The hydrogeological water flow mod
Mar 29, 2023
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Exploration of Petrographic, Elemental, and Material Properties of Dynamic Failure-Prone CoalsBy Lawson. Heather
"The purpose of this study is to explore how the geochemical and petrographic components of coal may impact its physical properties, as well as how these components correlate with a history of reporta
Jan 1, 2019
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OFR-10(3)-79 Noise Control Modification Manual - Jeffrey 94-L Bridge ConveyorBy Tom Retka
This three volume final report summarizes the activities and conclusions of this contract. The objective of the contract was to develop noise control modifications on a retrofit basis, for auger miner
Jan 1, 1978
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Managing Geotechnical Risk Through Non-Destructive Rock Reinforcement Testing Trialled at the George Fisher Mine, Mt IsaCorrosion affects the performance of rock support and reinforcement at various underground mines, including the George Fisher Mine, where recent studies showed that this risk to mining operations is g
Nov 25, 2010
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Application Of A Tech Innovation Model For The Mine Of The Future: Bridging The Gap Between Theory And PracticeBy Anastasia Xenaki, Edmundo Laporte, Antonio Nieto, Jesus Castillo Gomez, Oscar Velasquez
It is particularly challenging for the mining industry to create and implement an efficient and adaptable mining innovation model to secure the continuous improvement of processes and products via tec
Feb 1, 2023