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  • SME-ICGCM
    The Investigation Of The Rock Mass Stressed-Deformed State Under The Conditions Of Floating Earth Presence In The Roof Of The Level Working

    By V. Bondarenko

    The forecasting of floating earth inrush into the working is to a great extent connected with the investigation of the rock mass stressed-deformed state around the working. The aim of such investigati

    Jan 1, 1996

  • IIMP
    Criterios de productividad en el diseño de tajeos para vetas irregulares

    By Miguel A. Farfán

    El presente trabajo describe los criterios de productividad en el diseño de tajeos para vetas irregulares a través del método de explotación de corte y relleno. Dicho método es factible -en tanto es c

    Sep 12, 2005

  • SME
    An Approach For Instrumentation Design

    By J. Sanko

    When faced with the task of designing a process control system the control engineer must consider the following: 1. The type of process to be controlled and the manner in which the process must be co

    Jan 1, 1981

  • IOM3
    Alluvial gold dredging: a case study of effects on groundwater turbidity

    By H. R. Thorpe

    A floating gold dredge operating in coarse alluvial gravels of the Grey River on the west coast of the South Island, New Zealand, generated high concentrations of clay and colloidal particles in the d

    Jun 19, 1905

  • NIOSH
    RI 7069 Parameters Affecting Reduction-Induration Of Unfired Magnetite Pellets

    By R. B. Schluter

    Magnetite pellets were simultaneously reduced and indurated on a laboratory scale in order to determine the effects of temperature, induration time, degree of metallization, and sulfur content upon th

    Jan 1, 1968

  • NIOSH
    OFR-105-92 [Environmental Regulation For Mines In Southeast Alaska - And Its Effects On Projects Design, Timeframes, And Uncertainty, A Preliminary Review] - Environmental Compliance Requirements

    By Lisa A. McDonald

    The environmental compliance process affects all aspects of hardrock-mining operations, from exploration through post-closure. The primary components of the environmental compliance process are requir

    Jan 1, 1992

  • NIOSH
    OFR-133(2)-81 Study Energy Absorption Characteristics Of A Pit Bottom Buffer - Vol. II

    By F. A. Penning

    An experimental and analytical investigation was conducted on a recoverable pit bottom buffer. Work was conducted at the Colorado School of Mines using the U.S. Bureau of Mine-s free fall test tower.

    Jan 1, 1980

  • NIOSH
    IC 8725 Projects To Expand Fuel Sources In Eastern States - Survey Of Planned Or Proposed Coal Mines, Coal And Noncoal Conversion Plants, Electric Generating Plants, Oil Refineries

    This Bureau of Mines report comprises tables listing the name, location, and other pertinent data concerning certain future fuel-related projects. The tables include information on projects involving

    Jan 1, 1976

  • NIOSH
    Employment And Injuries In The Metal And Nonmetal Industries (f0df1e9c-d44c-4f72-91b8-6b254e76201f)

    By Forrest T. Moyer

    INJURY experience in the metal and nonmetal mineral industries during 1964 was better in rates of occurrence but worse in severity rates than in 1963. The frequency rate of injuries per million man-ho

    Jan 1, 1965

  • SME
    The Effects Of Design And Operating Variables On Rod Mill Performance (7f523b40-68c0-40b6-8014-dcae9940ff7e)

    This paper describes major technical developments in rod mill design and operating practice since its introduction into the North American minerals industry over fifty years ago. The basic operating c

    Jan 1, 1986

  • SME-ICGCM
    Surface Subsidence. in Longwall Mining--A Case Stud

    By R. D. Yancich

    A case study of longwall mining surface subsidence was performed at a mine in Southwestern Pennsylvania. The mine operated in the Pittsburgh coal seam which averaged 70-72 inches with 6-8 inches draw

    Jan 1, 1984

  • DFI
    Ground Freezing For Shoring Of Excavations - A Case History: 1405/SR522 Vault NW-6

    By Daniel Mageau

    Ground freezing has been used for over 100 years to provide shoring and ground water cutoffs for hundreds of projects worldwide, including drilled shafts, tunnels and cofferdams. Typically, these case

    Jan 1, 1998

  • CIM
    Process Optimization in Mining: The Next Paradigm Shift in Productivity Gain after Mechanization and Automation

    By Christoph Miller

    About 80 years ago the mining industry saw an advertisement of a machine manufacturer: ?One man ? one machine?, meaning the productivity gain by using a pneumatic rock drill instead of manual tools. M

    Oct 1, 2009

  • AUSIMM
    Current Billing Technology In Mineral Exploration

    By Emerson J

    Drilling has always been one of the most important parts of the exploration process with most companies spending around 25% of their budget on drilling. Although superficially there appears to be

    Jan 1, 1987

  • NIOSH
    RI 9203 - Computer Modeling of Dust and Forces for Longwall Mining Systems

    By B. D. Hanson

    An interactive computer program has been developed by the Bureau of Mines which enables the user to identify the effect of cutting system changes on relative dust generation for longwall shearer drums

    Jan 1, 1988

  • AUSIMM
    The use of mid-panel ventilation shafts to improve positional cooling efficiency in a Bowen Basin longwall mine – a case study

    By D Brouwer, P Wild, B Belle

    Due to the steep geo-thermal gradient in Bowen Basin area, as underground coalmines reach increased depths of extraction, the Bulk Air Cooling (BAC) requirements will increase as opposed to cooling th

    Aug 28, 2017

  • DFI
    Evaluating Efficiency of Geo5 in the Analysis of Pile Foundation

    By Elizabeth Varghese, Sanket Rawat, Prachuryya Kaushik, Ravi Kant Mittal

    "Geo5 Software is gaining popularity worldwide due to its expediency in analysis and design of pile foundation. The analysis is based on various theoretical, empirical and semi-empirical methods avail

    Jan 1, 2017

  • NIOSH
    RI 3288 Detailed Statistical Microscopic Analyses Of Ore And Mill Products Of The Utah Copper Co. ? Introduction (22f9bf8a-7549-4c23-9796-010e350bad1a)

    By R. E. Head

    This paper embodies the data obtained by a detailed statistical, microscopic analysis of the composite mill feed concentrate, and tailing, from the Magne and Arthur mills of the Utah Conger Co. for 1

    Jan 1, 1935

  • AUSIMM
    Beyond Mine-to-Mill - Circuit Design for Energy Efficient Resource Utilisation

    By A R. Bye

    Energy comes at great cost to our world and societies and therefore we should use it wisely and optimally. Societal pressure is enforcing this and the industry must respond by being proactive.The mine

    Jan 1, 2009

  • NIOSH
    RI 6126 Use Of A Large-Diameter Reactor In Synthesizing Pipeline Gas And Gasoline By The Hot-Gas-Recycle Process

    By A. J. Forney

    The hot-gas-recycle process, for the hydrogenation of carbon monoxide, was investigated in a 12-inch-diameter reactor. Initially because the distribution of gas was poor, hotspots developed in the cat

    Jan 1, 1962