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Design Development of the I-35 Capital Express Central Drainage Tunnels - NAT2024By Joseph Goessling, Mark Kroncke, James Parkes
The I-35 Capital Expressway (CapEx) Central Drainage Tunnels will serve as a stormwater collection system for the forthcoming I-35 Capital Express Central reconstruction project through downtown Austi
Jun 23, 2024
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Research on the Roof Advanced Breaking Position of Large Mining Height Working Face in Shallow Coal SeamFully mechanized longwall mining with large mining heights (LMHs) in shallow-depth thick coal seams has been widely applied in Shenfu coalfield, China. Dynamic loading and rib spalling is serious when
Jul 28, 2020
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The Pit Falls Of Benchmarking And How To Avoid ThemBy K. Hanson
When done properly, benchmarking is an extremely effective tool for assessing ones performance, finding areas for improvement, and identifying strengths. However, when done improperly it can be an ex
Jan 1, 2011
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Protecting Miners from Coal Bursts During Development Above Historic Mine Workings in Harlan County, KentuckyIn order to reach a large, untapped reserve of high-quality coal, D8 Cloverlick mine proposed to mine a corridor nearly 2,000 ft deep beneath the Benham Spur of Black Mountain, Kentucky’s highest peak
Jan 7, 2020
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Feasible Tunnel Construction Options For The Systems Conveyance And Operations Program Reach 3 TunnelBy S. H. Jason Choi
The Systems Conveyance and Operations Program (SCOP) is being implemented to convey tertiary-treated effluent to Lake Mead near Las Vegas, Nevada. The Reach 3 Tunnel Project is part of SCOP. The tunne
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Pillar Recovery At The Buick MineBy David E. Nicholas, Steven R. Dismuke, Paul F. Cicchini
The Buick mine, located 195 kilometers (120 miles) southwest of St. Louis in the Viburnum Trend, is owned and operated by Homestake Mining Company. The mine produces lead and zinc ore from a room and
Jan 1, 1986
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Technical Note - Effect of metal ions on the stability and zeta potential of barite suspensionsBy R. W. Smith, Z. Sadowski
INTRODUCTION Problems encountered in barite flotation from various waste materials such as spent drilling muds are likely to be closely connected with the effect of contaminant metal ions and othe
Jan 1, 1988
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Petrographic Characterization Of Economizer Fly AshBy B. Valentim
Policies for reducing NOx emissions have led power plants to restrict O2, resulting in high-carbon fly ash production. Therefore, some potentially useful fly ash, such as the economizer fly ash, is di
Jan 1, 2009
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Silica Control At Reserve Mining CompanyBy W. J. Nosek
Reserve Mining Company completed construction on a major process modification project in June of 1980. These modifications enabled Reserve to reduce and control its final iron ore pellet silica conten
Jan 1, 1983
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New approaches detailed for gold exploration in the Canadian shieldBy H. R. Butler, J. F. Church, A. T. MacGibbon
Introduction Inco is the major North American nickel producer. Initially based in Sudbury, Ontario, its past exploration activity was directed toward finding new nickel deposits. New nickel sulfide d
Jan 2, 1987
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Deep Eutectic Solvents (DESs) for Green Recycling of Wasted Lithium‑Ion Batteries (LIBs): Progress on Pushing the Overall EfficiencyBy Shuie Li, Taibai Li, Tao Hu, Zhongjie Wang, Xiang Ge
As one of the main power sources, lithium-ion batteries (LIBs) will continue to be applied on a large scale in the future market. Commercialized LIBs cathode materials contain various valuable metal e
Jul 30, 2022
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No. 7 Subway Extension Crossing Under An Existing Subway Station: Challenges And Integration Of Underpinning Into The Design Of New TunnelsBy Aram Grigoryan
This paper addresses the challenges of designing the underpinning of major sub-way station with 4 operating tracks. No. 7 subway extension crosses under the existing 42nd street subway station on the
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Old Mines ? New Regulations: The re-opening of the Gordonsville, Elmwood, and Cumberland Mines under new DPM regulationsBy A. Adu-Acheampong
The Mid-Tennessee Zinc (MTZ) mines, comprised of the Gordonsville, Elmwood, and Cumberland sites, last operated 4 years ago and are undergoing rehabilitation to begin production in 2008. The mines uti
Jan 1, 2009
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Development of the Design Build Philosophy—Tren Urbano to Second Avenue SubwayBy Chris Bennett, Drupad Desai, Kirit Mevawala
INTRODUCTION The design/build (D/B) philosophy of contract delivery is neither new nor unusual when it comes to at-grade, elevated or high-rise structures. But when it comes to constructing underg
Jan 1, 2005
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Turbocharged engines require special lubrication maintenanceBy Jerry T. Shelby
Surface and underground mining operations require equipment with high power output ratings. Haul trucks, loaders, dozers, and other equipment need increasing horse-power to meet production demands.
Jan 3, 1987
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Comparing Simulated And Interpreted Geologic ModelsBy M. Rossi
Geologic ore controls are usually interpreted and modeled from cross sections and plans, as they are critical to construct meaningful and accurate ore reserves models. The geologic boundaries are oft
Jan 1, 2004
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Shaft Sinking In The Hemlo Gold DistrictBy Peter White
The Hemlo Gold District, located on the north shore of Lake Superior, was discovered in 1981 and will become one of the largest gold mining camps in Canada. Three major Canadian mining companies are p
Jan 1, 1985
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Deep Inclined Water Intake Shafts At The Navajo Generating StationBy Albert Ruiz
The 2,250-MW, coal-fired Navajo Generating Station located in Page, AZ draws water from Lake Powell using submersible pumps installed in five inclined shafts. Drought threatens to lower the reservoir
Jan 1, 2011
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Dust Control Considerations For Deep-Cut Faces When Using Exhaust Ventilation and a Flooded-Bed Scrubber - Preprint 97-48By R. A. Jankowski
The U.S. Bureau of Mines (USBM) conducted a series of laboratory tests to investigate the effectiveness of using a flooded-bed scrubber with exhaust ventilation in deep-cut faces of up to 12.2 m in le
Feb 24, 1997
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Bringing the Entrepreneurial Mindset into Mining Engineering Education (Mining, Metallurgy & Exploration)By Rudrajit Mitra, Erik Hulthén, TOBIAS HARTMANN, ELISABETH CLAUSEN, Aarti Sörensen
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
May 25, 2022