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  • SME
    Application Of Geostatistics To Roll Front Type Uranium Deposits

    By Harvey P. Knudsen

    This paper illustrates the application of geostatistics to a roll front type uranium deposit located in Wyoming. The steps involved in calculation of experimental variograms, variogram modeling and ve

    Jan 1, 1978

  • SME
    Dust Sampling and CFD Modeling of Airflow in a Mineral Processing Facility

    By K. V. Raj, A. Miller

    "Workers at mineral processing facilities are often exposed to high levels of dust generated when ores are processed. Crushing, grinding, screening, and other processes generate large quantities of du

    Jan 1, 2018

  • SME
    Ground Calcium Carbonate: Ore Mineralogy, Processing, And Markets (e9c89379-e43b-4003-85d5-49da0a2b897a)

    By P. I. Prescott

    Ground calcium carbonate (GCC) is used in the paper, plastics, paint, rubber, caulks, and sealants industries. The favorable properties of GCC include high whiteness and brightness, low hardness, and

    Jan 1, 1995

  • SME
    Numerical Study on Mining-Retention Ratio Optimization in Underground Solid Potassium Salt Mine

    By Jin Zhao, Weijie Wei, Jinwang Zhang, Xiaohang Wan, Shengli Yang

    Reasonable mining-retention ratio (ratio of room width to pillar width) is vital to recovery rate and stope stability in underground mining of solid potassium salt deposits. Based on the engineering b

    Jun 25, 2024

  • SME
    Forecasting Sand And Gravel, Crushed Stone, And Aggregate Demand In The United States (09f5e76e-fa98-4c91-b79f-ee6c1a88e1f6)

    By James R. Evans

    Forecasting demand is an art as well as a science, and much personal judgment is required. National forecasts made for sand and gravel, crushed stone, and/or aggregate may be misleading or unhelpful l

    Jan 1, 1978

  • SME
    Rio Piedras Project Completion: San Juan, Puerto Rico

    By Brian Fulcher, Matthew Bartlett, Jarrett E. Carlson

    This paper discusses the challenges to complete the construction of two large underground Metro stations and connecting tunnels in the Tren Urbano system. The completion work includes the installation

    Jan 1, 2003

  • SME
    CFD gas distribution analysis for different continuous-miner scrubber redirection configurations - SME Transactions 2017

    By L. Zhou, J. P. Rider, T. W. Beck, J. A. Organiscak, Y. Zheng

    The U.S. National Institute for Occupational Safety and Health (NIOSH)’s Pittsburgh Mining Research Division (PMRD) recently developed a series of models using computational fluid dynamics (CFD) to st

    Jan 1, 2017

  • SME
    CFD gas distribution analysis for different continuous-miner scrubber redirection configurations - SME Transactions 2018

    By L. Zhou, J. P. Rider, T. W. Beck, J. A. Organiscak, Y. Zheng

    The U.S. National Institute for Occupational Safety and Health (NIOSH)’s Pittsburgh Mining Research Division (PMRD) recently developed a series of models using computational fluid dynamics (CFD) to st

    Jan 1, 2018

  • SME
    Review Of Subsidence Control Measures - Past, Present, And Future ? 1.0 Introduction

    By Madan M. Singh

    It is estimated that through 1975, there were 1.69x109 m2 (418 000 acres) of urban land threatened by potential subsidence due to mining with a value of over $12 billion (19;3 dollars; USBM, 1979). Wi

    Jan 1, 1984

  • SME
    Unique Aspects of Remote High Altitude Water Tunnel Repair - NAT2024

    By David Jurich, Ed Perko, Jacob Prezkuta

    Numerous Colorado mountain tunnels that date to the late 1800s convey water to the farming and urban communities of the eastern Front Range. Repairs to these remote facilities, often located in public

    Jun 23, 2024

  • SME
    TBM Tunnel Logistics Management on the Longest Outfall Tunnel in the Middle East - NAT2022

    By H Vigil, G. Peach

    Long tunnels with only one access shaft pose many program problems for logistics, combine these with the requirement to drive directly out under the seabed for 10.2 km, and the program issues become e

    Dec 1, 2022

  • SME
    High-Pressure Slurry Ablation (HPSA): Review of Findings, Potential Applications, and Future Developments

    By Tim Lundquist

    Disa Technologies Inc. provides innovative, sustainable solutions for mineral processing and remediation through its patented High-Pressure Slurry Ablation (HPSA) technology. HPSA processes solid feed

    Jan 1, 2025

  • SME
    The Effect of Trapped Fumes on Clearance Time in Underground Development Blasting (Mining, Metallurgy & Exploration)

    By Sunil Vytla, Agus Sasmito, Akash Adhikari, Srivatsan Jayaraman Sridharan, Purushotham Tukkaraja

    Previous studies on blast fumes (carbon monoxide and nitrogen dioxide) clearance and workplace reentry time have overlooked the effects of toxic gases trapped in the muck pile. The currently available

    May 17, 2022

  • SME
    The Site Planning Process: Application To Land Use Potential Evaluation For Mined-Land

    By R. J. Sweigard

    Productive and beneficial use of reclaimed surface-mined land is a concern of industry, government, and the general public. An investigation was conducted of current mined-land planning practices to a

    Jan 1, 1984

  • SME
    Production of Strontium through a Vacuum Aluminothermic Process "Mining, Metallurgy & Exploration (2020)"

    By Mehmet Bugdayci, Onuralp Yücel, Yeliz Demiray Cucurachi, Ahmet Turan

    The production of strontium (Sr) metal from its oxide via an aluminothermic process under 1–5 mbar pressure was examined in this study. SrO of 99%purity by weight was used in the experiments. The effe

    Aug 7, 2020

  • SME
    Productivity And Cost Changes 1969?1971 Resulting From PL 91?173

    By John W. Straton

    Following the completion of the paper presented in February, 1972, data were received from many other mines and some original respondents submitted more complete questionnaires. The computer program w

    Jan 1, 1972

  • SME
    The Use Of A Thermodynamic Ventilation Program

    By R. L. Morse

    The thermodynamic program is similar to previous mine ventilation programs but has been expanded to consider the compressibility of air. The thermodynamic program does consider: 1) air density variati

    Jan 1, 1977

  • SME
    Materials Of Construction For Modern Uranium Plants

    By John A. Riddle

    Some of the pitfalls and problems in selecting and applying corrosion-resistant materials in uranium plants are discussed, together with some suggested solutions. Includes some cost data.

    Jan 1, 1979

  • SME
    Productivity With Trees And Crops On Surface-Mined Lands - What Do We Mean By Productivity?

    By W. Clark Ashby

    Productivity is a fascinating concept. Like motherhood or apple pie, we know it as a good thing. Just what it means is not so clear. To a coal miner we assume it means tons of coal hauled from the m

    Jan 1, 1981

  • SME
    Trailing Cable - Getting Your Money's Worth

    By Cliff Holloway

    The past year has been difficult for Canada's primary industries. The mining, oil and forestry industries have been hit by low prices and a reduced demand for natural resources. Foreign competiti

    Jan 1, 1999