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  • TMS
    Technical Developments And Environmental Improvements On The Peirce Smith Converters At Sumitomo?s Toyo Smelter & Refinery

    By Harumasa Kurokawa

    Since the initial start-up, the Toyo Smelter & Refinery has been operating in harmony with the ambient environment, and improvements have been implemented with technologies specifically developed for

    Jan 1, 2005

  • DFI
    Construction And Design Of Drilled Shafts In Hard Pinnacle Limestones

    By Dan A. Brown

    The following paper was written by Dr. Dan A. Brown, P.E. Brown is an Associate Professor at Auburn University's Department of Civil Engineering. The paper was originally presented at a FHWA&apos

    Jan 1, 1991

  • SME
    New Crystal Springs Bypass (Polhemus) Tunnel—Design Challenges

    By Roy C. Fedotoff, Jon Hurt, Gregg Sherry, Gilbert Tang

    The 1,380 m (4,200 ft) long New Crystal Springs Bypass (Polhemus)Tunnel (NCSBT) will replace the existing Crystal Springs Bypass Pipeline. This tunnel project is part of the SFPUC’s $4.3 billion capit

    Jan 1, 2007

  • SME
    Assessing dilution, ore loss and profit differences from various hand-drawn dig limits compared to optimal ore-waste delineations in deposits of variable heterogeneity

    By Fouad Faraj

    For every blast pattern, zones of unique material types need to be classified before mining. Most material types can be summarized into different kinds of ore and waste. Blocks generated from blasthol

    Oct 1, 2024

  • AUSIMM
    Geochemical Mining Impact and Possibilities of its Reduction

    By V P. Elpatyevskaya, V S. Arzhanova

    Main geochemical problems concerning the environment and mining industry interrelation are connected with the transformation of natural water chemistry by mining wastes. The investigation of many mine

    Jan 1, 1995

  • SAIMM
    Electrical Energy Management In The Ferroalloy Business

    By P. J. Brereton-Stiles, M. S. Rennie, N. Singh

    Ferroalloy producers are large-scale users of electrical energy, which in many countries is in short supply and increasingly expensive. Preheating and/or pre-reduction using natural gas, recycled furn

    Jan 1, 2004

  • SAIMM
    Evaluation of the Spatial Variation of Bvalue

    The estimation of the spatial variation of the b-value of the Gutenberg- Richter relationship is important for both the general interpretation of the mechanism of rock mass response and seismic hazard

    Jan 1, 2014

  • CIM
    Selecting the Correct Cyanide Destruction Process for Your Operation

    By R. Agius, A. Nacu

    "Adoption of the International Cyanide Management Code, regulatory requirements and community concerns have increased the need to implement suitable cyanide destruction processes at gold operations to

    Jan 1, 2017

  • DFI
    The Effect of Arching Pressure on a Vertical Circular Wall

    By Sangseom Jeong, Kyoungyul Kim, Jaeyeon Cho

    "Abstract The lateral earth pressure of vertical circular shaft is investigated by using experimental tests and a theoretical analysis. The emphasis was quantifying on the magnitude and distribution o

    Jan 1, 2014

  • AUSIMM
    Minimising Crest Loss by Eliminating Surface Dilation Due to Presplitting

    In most mines using presplitting the final excavated wall shows a zone of damage just below the crest and well defined presplit half barrels. The crest damage (surface dilation) zone varies and is add

    May 1, 2010

  • SME-ICGCM
    A Hydrogeomechanical Study Of Overburden Aquifer Response To Longwall Mining

    By G. J. Hasenfus

    This paper presents the results of an extensive hydrological and geomechanical monitoring program which Gas conducted at a longwall coal mine in W. Va. The field program included monitoring of groundw

    Jan 1, 1988

  • SME-ICGCM
    Geomechanical and Weathering Properties of Weak Roof Shales in Coal Mines

    By Hakan Gurgenli

    Many coal seams have weak shale immediate roofs that cause ground control problems. Therefore, it is important to know the properties of these shales so that preventive measures can be developed in a

    Jan 1, 2006

  • SME
    Longwall-Induced Ground Movement at a Shale Gas Well Site Located in a District Barrier Pillar—FLAC3D Modeling Results and Interpretation

    This paper evaluates the effect of longwall mining on a cluster of unconventional shale gas wells located in a district barrier pillar between a current longwall panel and the future panel north of th

    Jan 7, 2020

  • NIOSH
    IC 7759 Block-Caving Methods At The Sunrise Mine Platte County, Wyo. ? Introduction

    By F. L. Wideman

    This paper is one of a series on mining methods being published by the Bureau of Mines. It describes briefly mining practices at the Sunrise iron mine of the Colorado Fuel & Iron Corp., Platte County,

    Jan 1, 1956

  • SME
    Observations on the 2005 PDAC Convention

    By Bruce Geller

    The 2005 Prospectors and Developers Association of Canada (PDAC) convention continued the upbeat mood found in 2004. The global mining industry is booming due to higher commodity prices in nearly eve

    Jan 1, 2005

  • NIOSH
    RI 6221 Effects Of Hydraulic Fluids In Spontaneous Heating Of Coal

    By Allan F. Smith

    The influence of hydraulic fluids on spontaneous heating in bituminous coals is determined by measurement of the temperature increases produced in coal-fluid mixtures heated to a temperature sufficien

    Jan 1, 1963

  • AUSIMM
    Costing Techniques in the Mining Industry

    Many mining operations are uncertain of what costs they should be achieving. The majority of cost estimates are based on historical costs that have added contingency factors. Historical costs are a

    Jan 1, 1990

  • NIOSH
    The Titaniferous Iron Ores In The United States; Their Composition And Economic Value. ? Introduction

    By Joseph T. Singewald

    The term "titaniferous magnetite" is used to designate those magnetic ores of iron that carry more than 2 or 3 per cent of titanium. Large and easily workable deposits of these ores occur in different

    Jan 1, 1913

  • CIM
    Geology of the Ore Fault Ni-Cu Deposit, Bird River Sill Complex, Manitoba

    By P. Walford, C. Mealin, D. Good

    "The geology of the Ore Fault Ni-Cu deposit has been reinterpreted in the light of recent studies of the geology of the Neoarchean Bird River Sill Complex and the occurrence of economic Ni-Cu and Zn-C

    Jan 1, 2009

  • SAIMM
    Seismic monitoring of the Northparkes lift 2 block cave?part I undercutting ? Synopsis

    Caving of the second lift of the E26 orebody at Northparkes Mines was monitored with a comprehensive package of instrumentation, including an ISS seismic monitoring system. Seismicity was collected by

    Jan 1, 2008